A measuring mechanism for the respiratory metabolism of aquatic animals

Abstract

The application provides an aquatic animal respiratory metabolism intermittent circulation measuring mechanism and relates to the technical field of ocean engineering equipment, and the measuring mechanism comprises a respiratory chamber and a sealed cabin; wherein: the respiratory chamber is connected with the sealed cabin through threads; four sensors are arranged in the sealed cabin and used for measuring water body parameters in the respiratory chamber; a ratchet mechanism is arranged in the respiratory chamber and used for assisting in trapping, circulation measurement and releasing of aquatic animals. The application is simple and reliable in structure, only needs a set of driving device and combines with a mechanical structure, and can perform intermittent circulation measurement on the respiratory metabolism process of aquatic animals, so that stable and reliable aquatic animal respiratory metabolism data can be obtained.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ocean engineering equipment, and particularly relates to a water animal respiration metabolism intermittent cycle measuring mechanism. BACKGROUND

[0002] As one of important characteristics of studying the physiology, energy and basic physiological and ecological processes of water animals, respiration metabolism has been widely concerned by researchers at home and abroad. Respiration metabolism can reflect the internal relationship between the living environment and the state of water animals and the living habits. In the future, respiration metabolism will still be one of the focuses of studying the physiology and biological energy of water animals, and respiration metabolism ecology and physiology are also important contents of studying freshwater and seawater fishery resources and offshore ocean ranching.

[0003] In the measurement of respiration metabolism of water animals, the respiration metabolism data are mainly obtained indirectly through the closed flow water method, the static water method and the open flow water method. Although there are many experiments on the measurement of oxygen consumption of fish, there are still the following problems in the measurement of respiration metabolism of water animals at present.

[0004] 1. The acquisition of respiration data of water animals can only be carried out in a laboratory environment, and the processes such as capture and transfer of water animals need to be carried out in advance, which will destroy the original environment of the sample to be measured, resulting in distortion of the obtained data.

[0005] 2. There is a lack of mature equipment for long-term, dynamic and cyclic measurement of water animals under water, and reliable respiration metabolism data of water animals cannot be obtained. SUMMARY

[0006] The present application aims at solving the technical problems in the background.

[0007] In order to measure the respiration metabolism process of water animals in underwater environment and obtain more accurate and stable respiration metabolism data, the present application provides a water animal respiration metabolism intermittent cycle measuring mechanism, which comprises a respiration chamber and a sealed cabin, wherein:

[0008] The respiration chamber and the sealed cabin are connected through threads;

[0009] Four sensors are arranged in the sealed cabin for measuring water body parameters in the respiration chamber;

[0010] A ratchet mechanism is arranged in the respiration chamber for assisting in trapping, cyclic measurement and releasing of water animals.

[0011] Preferably, the respiration chamber comprises an outer shell, an inner bushing, an annular fence, an end cover, a flange, a fish attracting lamp and a ratchet mechanism; wherein:

[0012] The outer thread of one end of the shell is connected with the closed cabin, and the other end is fixed with the end cover through bolts;

[0013] One end of the inner bushing is fixed with the flange through bolts, and the other end is in contact with the end cover and can rotate relative to the end cover;

[0014] The central hole of the flange is fixed with the transmission shaft of the brushless motor in the closed cabin;

[0015] The fish attracting lamp is fixed on the end cover;

[0016] The ratchet mechanism is assembled in the groove on the end face of the inner bushing.

[0017] Preferably, the closed cabin includes a pressure-resistant shell, a transition connector, a composite cable, a CO2 sensor, an O2 sensor, a temperature-depth sensor, a camera, and a brushless motor; wherein:

[0018] One end of the pressure-resistant shell is connected with the transition connector through threads and uses axial sealing;

[0019] The composite cable is connected with the CO2 sensor, the O2 sensor, the temperature-depth sensor, the camera, and the brushless motor driver in the closed cabin through the water-tight joint at the bottom of the pressure-resistant shell, for transmitting sensor signals and controlling motor rotation, and for supplying power to various sensors and motors.

[0020] The transition connector has four tapered thread holes and a central through hole, a dynamic sealing ring is installed in the central through hole, the tapered threads on the CO2 sensor, the O2 sensor, the temperature-depth sensor, and the camera are connected with the tapered thread holes on the transition connector and sealed, the sensor measurement part extends into the breathing chamber, and the brushless motor transmission shaft passes through the central through hole to form a dynamic seal with the transition connector.

[0021] Preferably, the inner wall of the shell and the outer wall of the inner bushing are gap-fitted, the shell has two 80-degree sector windows uniformly distributed in the circumference, the inner wall of the shell has a sealing groove along the sector window, and a sealing strip is installed in the sealing groove.

[0022] Preferably, the outer wall of the inner bushing and the inner wall of the shell are gap-fitted and can rotate relative to the shell, the inner wall of the inner bushing and the outer wall of the annular fence are gap-fitted and can rotate relative to each other, the inner bushing has two 80-degree sector windows uniformly distributed in the circumference, one end of the inner bushing is processed with two symmetrically distributed grooves, and the grooves have pin hole.

[0023] Preferably, the annular fence has two 90-degree sector windows uniformly distributed in the circumference, the annular fence wall has a water permeable hole, one end of the annular fence is processed with a sealing groove, the sealing ring in the sealing groove is interference-fitted with the shell to increase the relative rotation resistance between the annular fence and the shell, and the outer wall of the annular fence is processed with two symmetrically distributed clamping grooves.

[0024] Preferably, the ratchet mechanism includes a pawl, a torsion spring, and a pin. The pin passes through the pawl and the torsion spring, is inserted into the pin hole of the inner bushing groove, and is fixed. The ratchet mechanism is assembled in the inner bushing groove.

[0025] Preferably, the present invention includes the following steps or methods in the intermittent cyclic measurement of respiratory metabolism in aquatic animals:

[0026] The fan-shaped windows on the outer shell, inner liner, and annular fence of the breathing chamber are aligned, the breathing chamber is in the open state, and the pawl of the ratchet mechanism is locked in the slot on the outer wall of the annular fence due to the torsion of the torsion spring.

[0027] When the brushless motor drives the flange and inner liner to rotate clockwise, the pawl drives the annular fence to rotate clockwise synchronously, and the breathing chamber is in an intermittent opening and closing state;

[0028] When the brushless motor drives the flange and inner liner to rotate counterclockwise, the pawl disengages from the slot on the outer wall of the annular fence, and the annular fence remains stationary due to the friction between it and the outer shell, and the breathing chamber is in a state of intermittent water replacement and closure.

[0029] By rotating the brushless motor clockwise and counterclockwise, the respiratory chamber is used to measure the respiratory metabolism of aquatic animals in a cycle of "open-close-water replacement-close".

[0030] The present invention adopts the above technical solution and has the following beneficial effects:

[0031] The present invention is simple and reliable in structure. It only requires a set of driving device combined with mechanical structure to perform intermittent cyclic measurement of the respiratory and metabolic process of aquatic animals and obtain stable and reliable respiratory and metabolic data of aquatic animals.

[0032] This invention is highly versatile; the respiratory chamber of the measuring mechanism can measure respiratory metabolic data of various fish and aquatic invertebrates.

[0033] This invention has wide applicability. By upgrading the strength of the sealed chamber material according to measurement needs, it can achieve the measurement of respiratory and metabolic data of aquatic animals at greater depths. Attached Figure Description

[0034] Figure 1 This is a three-dimensional cross-sectional schematic diagram of the measuring mechanism in an embodiment of the present invention;

[0035] Figure 2 This is a three-dimensional schematic diagram of the outer layer of the respiratory chamber;

[0036] Figure 3 A three-dimensional schematic diagram of the inner liner in the breathing chamber;

[0037] Figure 4 A three-dimensional schematic diagram of the annular fence in the respiratory chamber;

[0038] Figure 5 A three-dimensional schematic diagram of the ratchet mechanism and the groove of the inner liner in the breathing chamber;

[0039] Figure 6 This is a structural schematic diagram of the breathing chamber in the open state. In the diagram, P1 is a cross-sectional line, A-1 is a three-dimensional structural diagram in the open state, and A-2 is a cross-sectional diagram of the ratchet structure.

[0040] Figure 7 This is a structural schematic diagram of the breathing chamber in the closed state. In the diagram, P2 is a cross-sectional line, B-1 is a three-dimensional structural diagram in the closed state, and B-2 is a cross-sectional view of the ratchet mechanism.

[0041] Figure 8 This is a structural diagram of the breathing chamber in a water-replacement state. In the diagram, P3 is a cross-sectional line, C-1 is a three-dimensional structural diagram of the water-replacement state, and C-2 is a cross-sectional diagram of the ratchet mechanism.

[0042] Legend:

[0043] 1. Breathing chamber; 11. Outer shell; 111. Outer shell fan-shaped window; 112. Sealing groove; 12. Inner liner; 121. Inner liner fan-shaped window; 122. Inner liner groove; 13. Annular fence; 131. Annular fence fan-shaped window; 132. Annular fence slot; 133. Annular fence sealing groove; 134. Water permeable hole; 14. End cap; 15. Fish attractant light; 16. Flange; 2. Sealed chamber; 21. Pressure resistant shell; 22. Temperature and depth sensor; 23. Composite cable; 24. Camera; 25. Transition connector; 26. Carbon dioxide sensor; 27. Oxygen sensor; 28. Brushless motor. Detailed Implementation

[0044] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0045] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0046] like Figure 1 As shown, the aquatic animal respiratory metabolism intermittent cycle measurement mechanism provided in this embodiment of the invention includes a respiratory chamber 1 and a sealed chamber 2; wherein, the respiratory chamber 1 and the sealed chamber 2 are connected by threads, and four sensors are arranged in the sealed chamber 2 for measuring water parameters in the respiratory chamber 1.

[0047] likeFigure 1 As shown, the breathing chamber 1 includes an outer shell 11, an inner liner 12, an annular fence 13, an end cap 14, a fish-attracting light 15, a flange 16, and a ratchet mechanism. One end of the outer shell 11 is connected to the sealed chamber 2 via an external thread, and the other end is fixed to the end cap 14 by bolts. One end of the inner liner 12 is fixed to the flange 16 by bolts, and the other end contacts the end cap 14 and can rotate relative to it. The center hole of the flange 16 is fixed to the brushless motor drive shaft inside the sealed chamber 2. The fish-attracting light 15 is fixed to the end cap 14. The ratchet mechanism is fitted into a groove on the end face of the inner liner 12.

[0048] like Figure 1 As shown, the sealed chamber 2 includes a pressure-resistant shell 21, a temperature and depth sensor 22, a composite cable 23, a camera 24, a transition connector 25, a carbon dioxide sensor 26, an oxygen sensor 27, and a brushless motor 28; wherein:

[0049] One end of the pressure-resistant shell 21 is connected to the transition connector 25 by a thread and uses an axial seal;

[0050] The composite cable 23 is connected to the temperature and depth sensor 22, camera 24, carbon dioxide sensor 26, oxygen sensor 27 and brushless motor 28 inside the sealed chamber 2 through the watertight connector at the bottom of the pressure-resistant shell 21. It is used to transmit sensor signals, control motor rotation and power various sensors and motors.

[0051] The transition connector 25 has four tapered threaded holes and a central through hole. A dynamic sealing ring is installed in the central through hole. The tapered threads on the temperature and depth sensor 22, camera 24, carbon dioxide sensor and oxygen sensor are connected to and sealed with the tapered threaded holes on the transition connector 25. The sensor measuring part extends into the breathing chamber 1. The drive shaft of the brushless motor 28 passes through the central through hole and forms a dynamic seal with the transition connector 25.

[0052] Combination Figure 1 and Figure 2 As shown, the inner wall of the outer shell 11 is fitted with the outer wall of the inner bushing 12 with a clearance. Two 80-degree fan-shaped windows 111 are evenly distributed around the outer shell 11. A sealing groove 112 is opened along the fan-shaped window on the inner wall of the outer shell, and a sealing strip can be pasted in the sealing groove 112.

[0053] Combination Figure 1 and Figure 3 As shown, the outer wall of the inner bushing 12 is fitted with the inner wall of the outer shell 11 with a clearance and can rotate relative to the outer shell 11. The inner wall of the inner bushing 12 is fitted with the outer wall of the annular fence 13 with a clearance and can rotate relative to each other. The inner bushing 12 has two 80-degree fan-shaped windows 121 evenly distributed around its circumference. One end of the inner bushing is machined with two symmetrically distributed grooves 122, and there are pin holes in the grooves.

[0054] Combination Figure 1 and Figure 4As shown, the annular fence 13 has two 90-degree fan-shaped windows 131 evenly distributed around its circumference. The annular fence 13 has water-permeable holes 134 on its wall. A sealing groove 133 is machined at one end of the annular fence 13. The sealing ring in the sealing groove is interference-fitted with the outer shell 11 to increase the relative rotational resistance between the annular fence 13 and the outer shell 11. Two symmetrically distributed slots 132 are machined on the outer wall of the annular fence 13.

[0055] like Figure 5 As shown, the ratchet mechanism 17 in the breathing chamber 1 includes a pawl 171, a torsion spring 172, and a pin 173. The pin 173 passes through the pawl 171 and the torsion spring 172, is inserted into a pin hole in a groove 122 on the inner liner 12, and is fixed in place. The ratchet mechanism 17 is assembled in the groove 122 of the inner liner. The ratchet mechanism 17 is used to assist in the trapping, cyclic measurement, and release of aquatic animals.

[0056] like Figure 6 As shown, the fan-shaped windows on the outer shell 11, inner liner 12 and annular fence 13 of the breathing chamber 1 are aligned, the breathing chamber 1 is in the open state, and the pawl 171 of the ratchet mechanism 17 is stuck in the slot 132 on the outer wall of the annular fence 13 due to the torsion of the torsion spring.

[0057] like Figure 7 As shown, when the brushless motor 28 drives the flange 16 and the inner liner 12 to rotate clockwise, the pawl 171 drives the annular fence 13 to rotate clockwise synchronously, and the breathing chamber 1 is in an intermittent opening and closing state.

[0058] like Figure 8 As shown, when the brushless motor 28 drives the flange 16 and the inner bushing 12 to rotate counterclockwise, the pawl 171 disengages from the slot 132 on the outer wall of the annular fence 13. The annular fence 13 remains stationary due to the friction between it and the outer shell 11, and the breathing chamber 1 is in an intermittent water replacement state and a closed state.

[0059] Combination Figure 6 , Figure 7 and Figure 8 As shown, when the breathing chamber 1 is in the open state, aquatic animals can be trapped or released. When the breathing chamber 1 is in the closed state, the breathing of aquatic animals can be measured. When the breathing chamber 1 is in the water replacement state, the water inside the breathing chamber 1 is automatically exchanged with the external water through the water-permeable holes 134 of the annular fence 13. Through the clockwise and counterclockwise rotation of the brushless motor 28, the breathing chamber 1 completes the cyclic measurement of the respiratory metabolism of aquatic animals in the "open-close-water replacement-close" state.

[0060] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A device for measuring the intermittent cyclic respiratory metabolism of aquatic animals, characterized in that, Includes a breathing chamber and a sealed chamber; among which: The breathing chamber is connected to the sealed chamber by a thread; The sealed chamber is equipped with four sensors for measuring water parameters in the breathing chamber. The breathing chamber contains a ratchet mechanism, which is used to assist in the trapping, cyclic measurement, and release of aquatic animals. The breathing chamber includes an outer shell, an inner liner, an annular fence, an end cap, a fish-attracting light, a flange, and a ratchet mechanism, wherein: The external thread at one end of the outer shell is connected to the sealed chamber, and the other end of the outer shell is fixed to the end cap by bolts; One end of the inner liner is fixed to the flange by bolts, and the other end of the inner liner is in contact with the end cover and can rotate relative to the end cover; The center hole of the flange is fixed to the drive shaft of the brushless motor inside the sealed chamber. The fish-attracting lamp is fixed to the end cap; The ratchet mechanism is fitted into a groove on the end face of the inner bushing; The inner wall of the outer shell is fitted with the outer wall of the inner liner with a clearance. The outer shell has two 80-degree fan-shaped windows evenly distributed around its circumference. The inner wall of the outer shell has a sealing groove along the fan-shaped window, and the sealing groove can be used to attach a sealing strip. The outer wall of the inner bushing is fitted with the inner wall of the outer shell with a clearance and can rotate relative to the outer shell. The inner wall of the inner bushing is fitted with the outer wall of the annular fence with a clearance and can rotate relative to each other. The inner bushing has two 80-degree fan-shaped windows evenly distributed around its circumference. One end of the inner bushing is machined with two symmetrically distributed grooves, and the grooves have pin holes. The ring fence has two 90-degree fan-shaped windows evenly distributed around its circumference. The ring fence wall has water-permeable holes. One end of the ring fence is machined with a sealing groove. The sealing ring in the sealing groove is interference-fitted with the outer shell to increase the relative rotational resistance between the ring fence and the outer shell. The outer wall of the ring fence is machined with two symmetrically distributed slots. The ratchet mechanism includes a pawl, a torsion spring, and a pin. The pin passes through the pawl and the torsion spring, is inserted into the pin hole of the inner bushing groove, and is fixed. The ratchet mechanism is assembled in the inner bushing groove. The fan-shaped windows on the outer shell, inner liner, and annular fence of the breathing chamber are aligned, the breathing chamber is in the open state, and the pawl of the ratchet mechanism is stuck in the slot on the outer wall of the annular fence due to the torsion of the torsion spring. When the brushless motor drives the flange and inner liner to rotate clockwise, the pawl drives the annular fence to rotate clockwise synchronously, and the breathing chamber is in an intermittent opening and closing state; When the brushless motor drives the flange and inner liner to rotate counterclockwise, the pawl disengages from the slot on the outer wall of the annular fence, and the annular fence remains stationary due to the friction between it and the outer shell. The breathing chamber is in an intermittent water replacement state and a closed state.

2. The respiratory metabolic intermittent cycle measurement mechanism according to claim 1, characterized in that, The sealed chamber includes a pressure hull, temperature and depth sensors, composite cables, cameras, transition connectors, carbon dioxide sensors, oxygen sensors, and a brushless motor; among which: One end of the pressure-resistant shell is connected to the transition connector by a thread and uses an axial seal; The composite cable is connected to the carbon dioxide sensor, oxygen sensor, temperature and depth sensor, camera and brushless motor driver in the sealed chamber through a watertight connector at the bottom of the pressure-resistant shell. It is used to transmit sensor signals, control motor rotation and power various sensors and motors. The transition connector has four tapered threaded holes and a central through hole. A dynamic sealing ring is installed in the central through hole. The tapered threads on the carbon dioxide sensor, oxygen sensor, temperature and depth sensor, and camera are connected to and sealed with the tapered threaded holes on the transition connector. The sensor measuring part extends into the breathing chamber, and the brushless motor drive shaft passes through the central through hole, forming a dynamic seal with the transition connector.

3. The aquatic animal respiratory metabolism intermittent cycle measurement mechanism according to claim 1, wherein the measurement mechanism uses a brushless motor to rotate clockwise and counterclockwise in combination, and the respiratory chamber performs cyclic measurement of aquatic animal respiratory metabolism in the state of "open-close-water replacement-close".

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