Portable mayfly naiad observation collector

Abstract

The portable mayfly naiad observation collector comprises a collecting cylinder, a mounting plate and a cover cylinder, an annular interlayer with an upward opening is arranged in the side wall of the collecting barrel; a plurality of guide ropes are arranged at the bottom of the interlayer around the axis of the collecting barrel; the ends, away from the collecting cylinder, of the multiple guide ropes are connected to the edge of one side of the mounting plate, and the multiple guide ropes are parallel to one another. A sliding hole is formed in the mounting plate, and a hollow sleeve penetrating through the sliding hole is arranged at the position, at the sliding hole, of the other side of the mounting plate; an opening of the cover cylinder faces downwards, and the cover cylinder is located between the collecting cylinder and the mounting plate and arranged in the annular interlayer in a sliding mode; a guide hole is formed in the side wall of the cover cylinder in the axis direction of the cover cylinder. The guide rope penetrates through the guide hole; one end, far away from the opening, of the cover cylinder is provided with a plurality of air holes and a traction rope; the pulling rope is arranged in the sleeve in a sliding mode, and one end of the pulling rope penetrates out of the sleeve. The problems that a traditional collecting tool is complex in structure or needs a matched tool and is inconvenient to carry in field operation are solved.

Description

Portable mayfly bio-observation and collection device Technical Field

[0001] This utility model relates to the field of biological sample collection devices, and more specifically, to a portable mayfly biological observation and collection device. Background Technology

[0002] In aquatic biological research, mayflies serve as indicator organisms for water quality monitoring, and their sample collection needs to balance portability, ease of operation, and sample survival rate. Traditional collection tools are complex in structure or require additional equipment, making them inconvenient to carry in the field. Summary of the Invention

[0003] The purpose of this invention is to provide a portable mayfly biological observation and collection device, which solves the problem that traditional collection tools are complex in structure or require supporting tools, and are inconvenient to carry in the field.

[0004] The embodiments of this utility model are achieved through the following technical solutions:

[0005] Portable mayfly bio-observation and collection device, including:

[0006] The collecting cylinder has its opening facing upwards, and its side wall has an annular interlayer with an opening facing upwards inside; the bottom of the interlayer is provided with several guide ropes around the axis of the collecting cylinder;

[0007] The mounting plate has several guide ropes connected to one side edge of the mounting plate at the ends away from the collecting cylinder, and the guide ropes are parallel to each other; the mounting plate has a sliding hole, and a hollow sleeve penetrating the sliding hole is provided on the other side of the mounting plate at the sliding hole.

[0008] The cover cylinder, with its opening facing downwards, is located between the collection cylinder and the mounting plate, and is slidably disposed in the annular interlayer; the inner side wall of the cover cylinder is provided with a guide hole along its axial direction; the guide rope passes through the guide hole; the end of the cover cylinder away from its opening is provided with several ventilation holes and a traction rope; the traction rope is slidably disposed in the sleeve, with one end of it passing through the sleeve.

[0009] The side wall of the collecting cylinder is provided with several through side holes.

[0010] A handle is provided at the end of the sleeve away from the mounting plate.

[0011] The handle is equipped with a limiting post.

[0012] The end of the traction rope away from the cover cylinder is equipped with a limiting ring.

[0013] Magnetic strips are provided at the bottom of the interlayer of the collection cylinder and at the edge of the opening of the cover cylinder.

[0014] The cover is made of transparent material.

[0015] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0016] 1. The portable mayfly biological observation and collection device of this utility model has a guide rope and a sliding hole arranged in parallel, which allows the cover tube to slide stably along the axis of the collection tube. By pulling the traction rope, the cover tube is pulled to separate from the collection tube. When the traction rope is released, the cover tube closes and seals the collection tube under the action of gravity along the interlayer.

[0017] 2. The portable mayfly biological observation and collection device of this utility model has a handle at the end of the sleeve for easy gripping, and with the help of the limiting post and the limiting ring, the stroke of the traction rope can be precisely controlled. When fixing, the traction rope can be pulled out so that the limiting ring is put on the limiting post for fixation, thus preventing the cover from sliding excessively or falling off.

[0018] 3. The portable mayfly biological observation and collection device of this utility model has a side hole design on the side wall of the collection tube to keep the water flowing, ensuring that the mayfly organisms maintain their natural living environment during the collection process and improving the sample collection rate; the cap tube and the collection tube are sealed by a magnetic strip, forming a stable magnetic connection when closed, preventing water leakage and sample escape, while facilitating rapid separation and observation. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 is an internal sectional view of this utility model;

[0021] Figure 3 is an enlarged view of section B in Appendix 2;

[0022] Figure 4 is an enlarged view of point A in Appendix 1.

[0023] In the diagram, 1-collecting cylinder, 101-interlayer, 102-side hole, 103-guide rope, 104-mounting plate, 105-sleeve, 106-handle, 107-limiting post, 2-cover cylinder, 201-guide hole, 202-traction rope, 203-limiting ring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] As shown in Figures 1 and 2, the portable mayfly organism observation and collection device includes a collection tube 1, a mounting plate 104, and a cover tube 2. The opening of the collection tube 1 faces upward and is used to capture and collect mayfly organisms. The opening of the cover tube 2 faces downward and is used to cover the opening of the collection tube 1 to seal it. The cover tube 2 needs to be stably placed on the collection tube 1 by gravity. An annular interlayer 101 with an upward opening is provided inside the side wall of the collection tube 1, and the cover tube 2 is slidably placed in the annular interlayer 101. Several guide ropes 103 are provided around the axis of the collection tube 1 at the bottom of the interlayer 101. A guide hole 201 is provided inside the side wall of the cover tube 2 along its axial direction, so that the guide ropes 103 pass through the guide hole 201, and the cover tube 2 slides along the guide ropes 103 and finally enters the annular interlayer 101, so as to achieve precise guidance of the cover tube 2.

[0027] Since the cover cylinder 2 needs to slide along the guide rope 103, several guide ropes 103 need to be kept parallel. Therefore, an installation plate 104 is provided. The ends of several guide ropes 103 away from the collection cylinder 1 are respectively connected to one edge of the installation plate 104. When the installation plate 104 is pulled straight along the axial direction of the collection cylinder 1, the guide ropes 103 are kept parallel to each other, and the cover cylinder 2 is located between the collection cylinder 1 and the installation plate 104, sliding along the guide rope 103.

[0028] Furthermore, when the cover tube 2 slides, the position of the collecting tube 1 needs to remain unchanged. The mounting plate 104 is connected to the collecting tube 1 via the guide rope 103. Therefore, it is sufficient to keep the position of the mounting plate 104 unchanged. A hollow sleeve 105 is provided on the side of the mounting plate 104 away from the collecting tube 1. By holding and keeping one end of the sleeve 105 stationary, the collecting tube 1 can maintain its position under the action of gravity. Since the collecting tube 1 needs to ensure that its opening is always facing upwards when collecting, one end of the sleeve 105 is set at the center of the mounting plate 104.

[0029] Since it is necessary to control the cover tube 2 to move along the guide rope 103, a traction rope 202 is provided on the outer side of the end of the cover tube 2 away from its opening. The movement of the cover tube 2 can be controlled by pulling the traction rope 202. In addition, the collection tube 1 must always keep its opening facing upwards, so the traction rope 202 is also set at the center of one end of the cover tube 2.

[0030] Since the cover cylinder 2 is located between the collection cylinder 1 and the mounting plate 104, and the sleeve 105 and the traction rope 202 are both located in the center, their positions overlap. Therefore, for better operation, a sliding hole is made through the mounting plate 104, and one end of the sleeve 105 is connected to the sliding hole. One end of the traction rope 202 passes through the sliding hole and the sleeve 105, and the other end passes out of the sleeve 105, making it easy to hold and operate.

[0031] When collecting in water, since the cover cylinder 2 moves with its opening facing downwards, when it is placed in the water from the air, there is air inside. Due to the buoyancy, the cover cylinder 2 is difficult to move downwards for the collection step. Therefore, the end of the cover cylinder 2 away from its opening is provided with several vent holes so that the air can be discharged.

[0032] When the cover tube 2 needs to be opened, pull the traction rope 202 extending from one end of the sleeve 105 to slide it along the sleeve 105, causing the cover tube 2 to move along the interlayer 101 and expose the collection tube 1 for collection; after collection is completed, when the cover tube 2 needs to be closed, release the traction rope 202 to allow the cover tube 2 to fall freely under the action of gravity and move along the guide rope 103 and the interlayer 101 until the bottom of the inner side of the cover tube 2 fits against the opening of the collection tube 1;

[0033] To enhance the tightness of the connection between the cover cylinder 2 and the collection cylinder 1, magnetic strips are provided at the bottom of the interlayer 101 of the collection cylinder 1 and the edge of the opening of the cover cylinder 2. When the bottom of the inner side of the cover cylinder 2 is in contact with the opening of the collection cylinder 1, the bottom of the interlayer 101 of the collection cylinder 1 and the edge of the opening of the cover cylinder 2 are in contact more tightly under the action of magnetic force.

[0034] As shown in Figure 3, in one embodiment, it is necessary to keep the water flowing inside the collection tube 1 to ensure that the mayfly organisms maintain their natural living environment during the collection process and improve the sample collection rate. Therefore, several through side holes 102 are provided on the side wall of the collection tube 1 so that the water can pass horizontally through the inside of the collection tube 1. When the cover tube 2 falls into the collection tube 1 by gravity, the cover tube 2 blocks the side holes 102, thus completing the collection of mayfly organisms.

[0035] When it is necessary to observe through the side hole 102 provided on the side wall of the collection cylinder 1, the cover cylinder 2 is preferably made of transparent material so that it is easy to observe through the cover cylinder 2 and the side hole 102.

[0036] As shown in Figure 4, in one embodiment, the end of the sleeve 105 away from the mounting plate 104 needs to be easy to hold, and a certain amount of waiting time is required during the collection of mayflies. Therefore, one end of the traction rope 202 needs to be easy to fix. Thus, a handle 106 is provided at the end of the sleeve 105 away from the mounting plate 104 for holding. A limiting post 107 is provided on the side of the handle 106 near the mounting plate 104, and a limiting ring 203 is provided at the end of the traction rope 202 away from the cover tube 2. The traction rope 202 can be pulled out from one end of the sleeve 105, and the limiting ring 203 can be sleeved on the limiting post 107 for fixation.

[0037] The working principle of this embodiment is as follows:

[0038] This portable mayfly biological observation and collection device, in its initial operation, first separates the cover tube 2 from the collection tube 1, pulls the traction rope 202 out from one end of the sleeve 105, and fixes the limiting ring 203 on the limiting post 107. Then, the separated cover tube 2 and collection tube 1 are placed into the water and sink under the action of gravity for collection. Since the outer wall of the collection tube 1 has a side hole 102, the mayflies flow into the collection tube 1. At this time, the limiting ring 203 is removed from the limiting post 107. At this time, the cover tube 2 is no longer under tension, and then the cover tube 2 falls freely under the action of gravity and moves along the guide rope 103 and the interlayer 101 until the bottom of the inner side of the cover tube 2 is attached to the opening of the collection tube 1. The bottom of the interlayer 101 of the collection tube 1 and the edge of the opening of the cover tube 2 are attached under the action of magnetic force, completing the sealing of the collection tube 1 and collecting the mayflies. At this time, since the sleeve 105 is connected to the collection cylinder 1 through the mounting plate 104 and the guide rope 103, the sleeve 105 is pulled to lift the collection cylinder 1 out of the water, and finally the observation is made through the side hole 102.

[0039] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A portable mayfly biological observation and collection device, characterized in that, include: A collecting cylinder, with its opening facing upwards, has an annular interlayer with its side wall opening upwards inside. Several guide ropes are arranged around the bottom of the interlayer along the axis of the collecting cylinder. A mounting plate has several guide ropes connected to one edge of its side, with the guide ropes parallel to each other. The mounting plate has sliding holes, and on its other side, a hollow sleeve penetrating the sliding holes is provided. A cover cylinder, with its opening facing downwards, is located between the collecting cylinder and the mounting plate and is slidably disposed within the annular interlayer. A guide hole is provided along the axis of the side wall of the cover cylinder. The guide ropes pass through the guide holes. Several ventilation holes are provided at the end of the cover cylinder away from its opening, and a traction rope is provided there. The traction rope is slidably disposed within the sleeve, with one end extending out of the sleeve.

2. The portable mayfly biological observation and collection device according to claim 1, characterized in that, The side wall of the collecting cylinder is provided with several through side holes.

3. The portable mayfly biological observation and collection device according to claim 1, characterized in that, A handle is provided at the end of the sleeve away from the mounting plate.

4. The portable mayfly biological observation and collection device according to claim 3, characterized in that, The handle is equipped with a limiting post.

5. The portable mayfly biological observation and collection device according to claim 4, characterized in that, The end of the traction rope away from the cover cylinder is equipped with a limiting ring.

6. The portable mayfly biological observation and collection device according to claim 1, characterized in that, Magnetic strips are provided at the bottom of the interlayer of the collection cylinder and at the edge of the opening of the cover cylinder.

7. The portable mayfly biological observation and collection device according to claim 2, characterized in that, The cover is made of transparent material.

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