CN219777118U - Experimental device for be arranged in aquaculture pond survey bed mud respiratory rate - Google Patents

Abstract

The utility model discloses an experimental device for measuring the respiration rate of sediment in an aquaculture pond, which comprises a telescopic rod, a respiration chamber and a fixing chamber; a mud guard is arranged on the inner side of the breathing chamber, a plurality of water passing holes are formed in the mud guard, the inner space of the breathing chamber is divided into a water sample chamber positioned at the upper part and a bottom mud chamber positioned at the lower part by the mud guard, and a water outlet structure is arranged on the side surface of the water sample chamber; the fixed room fixed connection is in the upper end of breathing the room, and the upper end of breathing the room is equipped with first check valve structure, and first check valve structure connects water sample room and fixed room, and the rivers or the air of flowing to the fixed room from the water sample room will be through first check valve structure, and the rivers of flowing to the water sample room from the fixed room will be blocked by first check valve structure, and the upper end of fixed room is equipped with the wash port, and the upper end of fixed room is connected with the telescopic link. The utility model is more convenient to carry and operate.

Description

Experimental device for be arranged in aquaculture pond survey bed mud respiratory rate

Technical Field

The utility model relates to culture pond experimental equipment, in particular to an experimental device for measuring the bottom mud respiration rate in a culture pond.

Background

In recent years, a pond multi-nutrition-level comprehensive cultivation mode is promoted in China, and cultivation is carried out in a pond multi-nutrition-level comprehensive cultivation mode in many places, but the mode is clearly researched, and firstly, income and expenditure of carbon, nitrogen and phosphorus are started. Carbon expenditure in ponds includes farmed animals, sediment respiration, and the like.

The respiration rate of the bottom mud is an important sign for researching and discussing problems of organic matter metabolism, dissolved oxygen balance and the like in the ecology of the pond, and in order to conveniently measure the respiration rate of the bottom mud of the pond, a device (mostly iron, galvanized products and the like) capable of sinking into the bottom of the pond is conventionally adopted for operation.

Referring to fig. 4, a conventional device for measuring the respiration rate of pond sediment is shown, which comprises a respiration chamber 8, a water guide pipe 18 and a handle 19, wherein the respiration chamber 8 is a main body part, and the conventional respiration chamber is made of metal such as iron. The traditional device is huge in size, heavy and not easy to carry on the ship, is only suitable for collecting pond sediment with shallow pond water, can not be used for collecting samples from the center of the pond when the depth of the pond water reaches a certain degree, can only be used for collecting samples at the side of the pond, is very troublesome to operate, and the traditional device for measuring the respiration rate of the pond sediment is basically integrated, is very huge and can not meet the requirements of quick transportation and convenient carrying.

In order to achieve the function of convenient carrying, chinese patent No. 2014204753918 discloses a pond in-situ sediment breathing device which comprises a handle part, a breathing cavity part, an exhaust pipeline and a water outlet pipeline. However, when the device is used, in order to enable pond water to smoothly enter the breathing cavity, the exhaust hose and/or the water outlet hose must be extended above the water surface, so that the exhaust hose and/or the water outlet hose must be long enough, and the difficulty of sediment sampling operation is increased by the long hose, so that the operation is more complicated.

Then, the pond in-situ sediment breathing device separates pond water and sediment in the breathing cavity, and the collection amount cannot be well controlled.

In addition, when the mud in the bottom of the pond is muddy mud (thin mud), the in-situ bottom mud breathing device of the pond cannot be used, the breathing cavity part cannot take out the muddy mud from the bottom of the pond, and the muddy mud can leak out from the lower port of the breathing cavity part.

Disclosure of Invention

The utility model aims to solve the technical problem of providing an experimental device for measuring the bottom mud respiration rate in an aquaculture pond, so that the device is more convenient to carry and operate.

In order to solve the technical problems, the utility model adopts the following technical scheme:

an experimental device for be arranged in survey bed mud respiratory rate in aquaculture pond, its characterized in that: comprises a telescopic rod, a breathing chamber and a fixed chamber; a mud guard is arranged on the inner side of the breathing chamber, a plurality of water passing holes are formed in the mud guard, the inner space of the breathing chamber is divided into a water sample chamber positioned at the upper part and a bottom mud chamber positioned at the lower part by the mud guard, and a water outlet structure is arranged on the side surface of the water sample chamber; the fixed room fixed connection is in the upper end of breathing the room, and the upper end of breathing the room is equipped with first check valve structure, and first check valve structure connects water sample room and fixed room, and the rivers or the air of flowing to the fixed room from the water sample room will be through first check valve structure, and the rivers of flowing to the water sample room from the fixed room will be blocked by first check valve structure, and the upper end of fixed room is equipped with the wash port, and the upper end of fixed room is connected with the telescopic link.

Optionally, the water outlet structure comprises a water outlet pipe and two water outlets arranged on the side surface of the water sample chamber, and two ends of the water outlet pipe are respectively sleeved with the two water outlets.

Optionally, two water outlets are arranged one above the other.

Optionally, a second check valve structure is provided at the lower port of the breathing chamber, and pond sediment below the breathing chamber is inserted into the pond sediment downwardly through the second check valve structure into the sediment chamber, and pond sediment in the sediment chamber is blocked when lifted upwardly.

Optionally, the second check valve structure includes bottom plate and fly leaf, and the bottom plate lid is in the lower port department of breathing room, is equipped with the bottom opening on the bottom plate, and the fly leaf is in the inboard of bottom opening, and the diameter of fly leaf is greater than the diameter of bottom opening, and one side of fly leaf is equipped with soft rubber portion, soft rubber portion and bottom plate fixed connection.

Optionally, the first check valve structure includes the water shutoff ball, and the upper end of breathing room is equipped with the through-hole, and through-hole intercommunication water sample room and fixed room, and the water shutoff ball is located the fixed room to the cooperation falls in the through-hole, and the diameter of water shutoff ball is greater than the diameter of through-hole.

Optionally, a thermometer is arranged on the side wall of the water sample chamber.

Optionally, a baffle ring is arranged on the outer side of the breathing chamber, and the position of the baffle ring corresponds to the position of the mud guard.

Optionally, the sidewall of the breathing chamber is a transparent sidewall.

Alternatively, the breathing chamber and the fixing chamber are both cylindrical.

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

1. the utility model is composed of the telescopic rod, the breathing chamber and the fixing chamber, has simple structure and is more convenient to carry after being disassembled.

2. In the process of downwards extending into the pond bottom for sampling, the air in the water sample chamber can be automatically discharged through the first check valve structure, so that pond water can smoothly enter the water sample chamber, and in the process of upwards extracting the experimental device, the first check valve structure can block water flow above the water sample chamber and cannot interfere water samples in the water sample chamber. Therefore, the operation of the utility model is simpler and more convenient, and the connection of the exhaust hose leaking out of the water surface and the opening and closing operation of the exhaust hose are not needed as in the background technology.

3. According to the utility model, the water sample chamber and the sediment chamber are separated by the mud guard in the breathing chamber, and the sediment in the sediment chamber cannot enter the water sample chamber, so that the volumes of the acquired sediment and the water sample are more fixed and accurate, and the subsequent calculation of the sediment breathing rate is more accurate.

4. The utility model can sample the position of the muddy mud in the bottom of the pond through the second check valve structure arranged at the lower port of the breathing chamber, and the muddy mud entering the bottom mud chamber is blocked by the second check valve structure and cannot be lost in the process of extracting the muddy mud from the bottom of the pond upwards.

Drawings

FIG. 1 is a schematic perspective view of an experimental set-up of the present utility model;

FIG. 2 is a schematic cross-sectional view of an experimental set-up of the utility model;

FIG. 3 is a schematic view of the second check valve construction of the present utility model with the flap opened;

fig. 4 is a schematic structural view of a conventional device for measuring the respiration rate of bottom mud of a pond.

The meaning of the reference numerals in the figures:

1-a water sample chamber; 2-a bottom mud chamber; 3-a water outlet pipe; 4-a water outlet; 5-a stationary chamber; 6-a drain hole; 7-a telescopic rod; 8-breathing chamber; 9-baffle rings; 10-a mud guard; 11-water passing holes; 12-water blocking ball; 13-through holes; 14-a bottom plate; 15-a movable piece; 16-bottom hole; 17-a soft rubber part; 18-a water guide pipe; 19-a handle; 20-thermometer.

Detailed Description

The utility model is further described below with reference to examples.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Examples:

an experimental apparatus for measuring the respiration rate of sediment in an aquaculture pond according to this embodiment is shown in fig. 1 to 3, and includes a telescopic rod 7, a respiration chamber 8, and a stationary chamber 5.

The breathing chamber 8 and the fixing chamber 5 are cylindrical, and the using state is vertical. The inside at breathing room 8 is equipped with fender 10, and fender 10 is circular, is equipped with a plurality of water holes 11 on the fender 10, and fender 10 separates into the interior space of breathing room 8 and is located water sample room 1 and the bottom mud room 2 that is located the lower part, when stretching into the pond end sample, the bottom mud will be restricted in bottom mud room 2, and pond water will get into water sample room 1 through water hole 11.

The side of the water sample chamber 1 is provided with a water outlet structure. The water outlet structure of this embodiment includes a water outlet pipe 3 and two water outlets 4 (the water outlet pipe 3 shown in the figure is cut into two sections, in practice is a complete one), the water outlet pipe 3 is a hose, two ends of the water outlet pipe 3 are respectively sleeved with the two water outlets 4, and the two water outlets 4 are arranged one above the other. In the sampling process, two water outlets 4 can be sealed simultaneously through one water outlet pipe 3, when sampling is completed and the experimental device is lifted, and pond water in the water sample chamber 1 needs to be taken out, one end of the water outlet pipe 3 is pulled out from the water outlets 4, and the pond water can be discharged. The water outlet structure is simple in structure and convenient to operate, only one water outlet pipe 3 is needed, and the length is designed according to the needs and is not needed to be too long.

The fixing chamber 5 is fixedly connected to the upper end of the breathing chamber 8, and the fixing chamber 5 and the breathing chamber 8 may be connected by screws or other conventional connection methods. The upper end of the breathing chamber 8 is provided with a first check valve structure connecting the watersample chamber 1 and the stationary chamber 5, through which water or air flowing from the watersample chamber 1 to the stationary chamber 5 will pass, whereas water flowing from the stationary chamber to the watersample chamber will be blocked by the first check valve structure.

The specific structure of the first check valve structure of this embodiment is: including water shutoff ball 12, the upper end of breathing room 8 is equipped with through-hole 13, and through-hole 13 intercommunication water sample room 1 and fixed room 5, and water shutoff ball 12 is located fixed room 5, and water shutoff ball 12 can be in fixed room 5 internal activity, and when experimental apparatus was in vertical natural state, water shutoff ball 12 will cooperate and fall in through-hole 13, blocks up in through-hole 13 department, and the diameter of water shutoff ball 12 is greater than the diameter of through-hole 13. In the process of downwards inserting into the bottom mud of the pond for sampling, the air in the water sample chamber 1 and pond water can push the water blocking ball 12 upwards so as to be upwards discharged, so that the pond water can be smoothly filled into the water sample chamber 1; in the process of lifting the experimental device upwards, the water blocking ball 12 is blocked at the through hole 13 to block the water sample chamber 1, so that the water in the pond above is not influenced.

The upper end of the fixed chamber 5 is provided with a drain hole 6, so that the fixed chamber 5 is communicated with the external space, and air and pond water can be discharged outwards.

The upper end of the fixed chamber 5 is connected with a telescopic rod 7. The telescopic rod 7 is of a conventional telescopic rod structure. The lower extreme of telescopic link 7 is in the same place with the screw hole threaded connection of the upper end of fixed room 5 for telescopic link 7 can mutually split with fixed room 5, thereby conveniently carry. The telescopic rod 7 of the present embodiment is provided with scales, which are composed of PVC pipes. The setting of scale can conveniently measure the water depth in pond.

The lower port of the breathing chamber 8 of this embodiment is provided with a second check valve structure, when the breathing chamber 8 is inserted into the pond sediment downwards, the pond sediment below can enter the sediment chamber 2 through the second check valve structure, and when the experimental device is lifted upwards, the pond sediment in the sediment chamber 2 is blocked by the second check valve structure, so that the experimental device can sample the muddy mud.

The second check valve structure comprises a bottom plate 14 and a movable piece 15, the bottom plate 14 seals the lower port of the breathing chamber 8, a bottom hole 16 is formed in the bottom plate 14, the movable piece 15 movably covers the inner side of the bottom hole 16, the diameter of the movable piece 15 is larger than that of the bottom hole 16, a flexible glue portion 17 is arranged on one side of the movable piece 15, the flexible glue portion 17 has certain elasticity and is bendable, the flexible glue portion 17 is fixedly connected with the bottom plate 14, the movable piece 15 can be opened upwards, and the movable piece 15 is in a state when being opened as shown in fig. 3. The second check valve structure is close to the water inlet structure at the bottom of the conventional water sampler and the water forbidden sheet structure of the pressurized water well.

In other embodiments, the second check valve structure may not be provided when the experimental set-up is used only to collect more viscous sediment.

In this embodiment, the thermometer 20 is arranged on the side wall of the water sample chamber 1, so that the temperature of the environment in which the water sample chamber is located at the moment can be conveniently observed.

The side wall of the breathing chamber 8 is a transparent side wall, so that the states of pond water and sediment in the water sample chamber 1 and the sediment chamber 2 can be conveniently observed, whether the pond water and the sediment are basically filled in the water sample chamber 1 and the sediment chamber 2 is observed, the volumes of the pond water and the sediment which are extracted are better judged, and the follow-up calculation is more accurate.

The outside of breathing room 8 of this embodiment is equipped with keeps off ring 9, and the position of keeping off ring 9 corresponds with the position of fender 10, and in the sampling process, keeps off ring 9 can keep off on pond bed mud, prevents experimental apparatus to insert too deeply.

The experimental device of this embodiment has the following partial preferred embodiments: the total length of the telescopic rod 7 is 4m, and the diameter is 6cm; the height of the breathing chamber 8 is 10cm, and the diameter is 5cm; the weight of the water shutoff ball 12 is about 20-40g; the distance between the mudguard 10 and the lower end of the breathing chamber 8 is 5cm.

One use process of the experimental device of this embodiment is:

when the measurement of the respiration rate of the bottom mud of the pond is required, the telescopic rod 7 is firstly adjusted to a specified length according to the depth of the pond, and then the fixed chamber 5 is in threaded connection with the telescopic rod 7 and is screwed down. Firstly, initial sampling is carried out, a fixed chamber 5 and a breathing chamber 8 are vertically downwards inserted into a pond by using a telescopic rod 7 and are inserted into bottom mud of the pond, when the bottom mud is contacted with the fixed chamber, the fixed chamber 5 and the breathing chamber 8 can slowly rotate for conveniently collecting samples, so that a movable piece 15 of a second check valve structure is opened due to extrusion of the bottom mud, the bottom mud enters a bottom mud chamber 2, the bottom mud is muddy, pond water enters a water sample chamber 1 through a water passing hole 11, air in the water sample chamber 1 is upwards discharged through a first check valve structure, after the bottom mud is filled in the bottom mud chamber 2, the breathing chamber 8 is slowly lifted upwards by using the telescopic rod 7, and in the lifting process, the movable piece 15 is used for sealing the bottom hole 16; when the surface of the pond is mentioned, the whole experimental device can be properly shaken to see whether the movable plate 15 is tightly sealed, after the tightness is confirmed, one end of the water outlet pipe 3 is opened again, pond water in the water sample chamber 1 is discharged under the action of water pressure, the discharged pond water is packaged by an experimental container, then the movable plate 15 is manually pushed inwards, and bottom mud in the bottom mud chamber 2 is discharged into another external experimental container, so that initial sampling is completed.

And then re-sampling, re-connecting the water outlet pipe 3, re-inserting the breathing chamber 8 into the pond downwards, inserting the breathing chamber into the sediment of the pond, standing the experimental device in the pond after the sediment is filled into the sediment chamber 2, standing for a certain time (usually 24 hours, also according to the specific requirement of measuring the respiration rate), then lifting the breathing chamber 8 upwards from the sediment, taking out the pond water in the water sample chamber 1 and the sediment in the sediment chamber 2 again, and finally, loading the sediment in another experimental container to finish the sampling work.

The above-mentioned embodiments of the present utility model are not intended to limit the scope of the present utility model, and the embodiments of the present utility model are not limited thereto, and all kinds of modifications, substitutions or alterations made to the above-mentioned structures of the present utility model according to the above-mentioned general knowledge and conventional means of the art without departing from the basic technical ideas of the present utility model shall fall within the scope of the present utility model.

Claims (10)

1. An experimental device for be arranged in survey bed mud respiratory rate in aquaculture pond, its characterized in that: comprises a telescopic rod, a breathing chamber and a fixed chamber; a mud guard is arranged on the inner side of the breathing chamber, a plurality of water passing holes are formed in the mud guard, the inner space of the breathing chamber is divided into a water sample chamber positioned at the upper part and a bottom mud chamber positioned at the lower part by the mud guard, and a water outlet structure is arranged on the side surface of the water sample chamber; the utility model discloses a water sample room, including fixed room, fixed room fixed connection is in the upper end of breathing the room, the upper end of breathing the room is equipped with first check valve structure, first check valve structure connects the water sample room with fixed room, follow the water sample room flow direction fixed room's rivers or air will be passed through first check valve structure, and follow fixed room flow direction water sample room's rivers will be blocked by first check valve structure, the upper end of fixed room is equipped with the wash port, the upper end of fixed room with the telescopic link is connected.

2. The experimental set-up for determining the respiration rate of sediment in an aquaculture pond according to claim 1, wherein: the water outlet structure comprises a water outlet pipe and two water outlets arranged on the side surface of the water sample chamber, and two ends of the water outlet pipe are respectively sleeved with the two water outlets.

3. An experimental set-up for determining sediment respiration rate in an aquaculture pond according to claim 2, wherein: the two water outlets are arranged one above the other and one below the other.

4. The experimental set-up for determining the respiration rate of sediment in an aquaculture pond according to claim 1, wherein: a second check valve structure is arranged at the lower port of the breathing chamber, when the breathing chamber is inserted into the pond sediment downwards, pond sediment below the breathing chamber can enter the sediment chamber through the second check valve structure, and when the breathing chamber is lifted upwards, pond sediment in the sediment chamber is blocked.

5. The experimental set-up for determining the respiration rate of sediment in an aquaculture pond according to claim 4, wherein: the second check valve structure comprises a bottom plate and a movable piece, the bottom plate is covered at the lower port of the breathing chamber, a bottom hole is formed in the bottom plate, the movable piece is movably covered at the inner side of the bottom hole, the diameter of the movable piece is larger than that of the bottom hole, a soft rubber part is arranged at one side of the movable piece, and the soft rubber part is fixedly connected with the bottom plate.

6. The experimental set-up for determining the respiration rate of sediment in an aquaculture pond according to claim 1, wherein: the first check valve structure comprises a water shutoff ball, a through hole is formed in the upper end of the breathing chamber and is communicated with the water sample chamber and the fixing chamber, the water shutoff ball is located in the fixing chamber and is matched with the fixing chamber to fall into the through hole, and the diameter of the water shutoff ball is larger than that of the through hole.

7. The experimental set-up for determining the respiration rate of sediment in an aquaculture pond according to claim 1, wherein: and a thermometer is arranged on the side wall of the water sample chamber.

8. The experimental set-up for determining the respiration rate of sediment in an aquaculture pond according to claim 1, wherein: the outside of the breathing chamber is provided with a baffle ring, and the position of the baffle ring corresponds to the position of the mud guard.

9. The experimental set-up for determining the respiration rate of sediment in an aquaculture pond according to claim 1, wherein: the side wall of the breathing chamber is a transparent side wall.

10. The experimental set-up for determining the respiration rate of sediment in an aquaculture pond according to claim 1, wherein: the respiration chamber and the fixing chamber are both cylindrical.