Sampling device for large benthonic animals in water body

Abstract

The utility model relates to the technical field of sampling devices, and discloses a sampling device for large benthonic animals in a water body, which comprises a sampling box, the top end of the sampling box is fixedly connected with a handle, the side wall of the sampling box is provided with an opening, and the inner wall of the sampling box at the opening is hinged with a cover plate. A grating plate is fixedly connected to the side wall of the sampling box, an insertion cone is fixedly connected to the bottom of the sampling box, a groove is formed in the inner wall of the insertion cone, a fixing rod is fixedly connected to the portion, located on the inner wall of the groove, of the insertion cone, and the rod wall of the fixing rod is movably sleeved with an extension plate and a torsional spring. According to the utility model, the insertion cone is inserted into the underwater sediment, so that the sampling box is attached to the underwater, the sampling box is ensured to be stably placed at the underwater, and meanwhile, the torsion spring pushes the extension plate to extend into the underwater sediment, so that the contact area of the insertion cone in the underwater sediment is increased, and the anti-shaking effect of the sampling box is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling devices, in particular to a sampling device for large benthic animals in water bodies. Background Art

[0002] A sampling device is a piece of equipment or tool used to obtain a sample. It can come in a variety of different forms and uses, depending on the type of sampling required and the area of ​​application. Benthic animals are organisms that live on the bottom of a body of water or on the sediment.

[0003] In the prior art, when a sampling device is used to sample large benthic animals in a water body, the sampling device is set at the bottom of the water and has poor stability. If the sampling device is shaken by external force, the sampling efficiency of the sampling device will be affected. At the same time, large benthic animals will collide with the inner wall of the sampling device after being sampled, causing the connection of the sampling device to loosen, affecting the closing strength. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the sampling device in the prior art is set at the bottom of the water with poor stability. If the sampling device is shaken by external force, the sampling efficiency of the sampling device will be affected. At the same time, large benthic animals will collide with the inner wall of the sampling device after being sampled, causing the connection of the sampling device to loosen, affecting the closing strength. A sampling device for large benthic animals in water bodies is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sampling device for large benthic animals in water bodies, comprising a sampling box, a handle fixedly connected to the top of the sampling box, an opening provided on the side wall of the sampling box, a cover plate hingedly provided on the inner wall of the sampling box located at the opening, a grille plate fixedly connected to the side wall of the sampling box, an insert cone fixedly connected to the bottom of the sampling box, a groove provided on the inner wall of the insert cone, a fixing rod fixedly connected to the inner wall of the insert cone located at the groove, an extension plate and a torsion spring movably sleeved on the rod wall of the fixing rod, one end of the torsion spring fixedly connected to the inner wall of the extension plate, the other end of the torsion spring fixedly connected to the inner wall of the insert cone, and the extension plate extends to the outside of the insert cone.

[0007] Preferably, the top side wall of the extension plate is set as an arc surface, a pull rope is fixedly connected to the side wall of the extension plate, a recess is opened on the bottom inner wall of the sampling box, and the end of the pull rope away from the extension plate extends to the inside of the recess and is fixedly connected to a pull ring.

[0008] Preferably, the sampling box is fixedly connected to a connecting seat on the side wall at the bottom end of the opening, a cavity is opened on the inner wall of the connecting seat, a spring is fixedly connected to the inner wall of the cavity, a stopper is fixedly connected to the end of the spring, and the stopper passes through the cavity and extends to the outside of the connecting seat.

[0009] Preferably, a rounded corner is provided on the right side of the top of the stopper, a lever is fixedly connected to the side wall of the stopper, a strip opening is provided on the inner wall of the connecting seat, and the rod wall of the lever is slidably arranged on the inner wall of the connecting seat located at the strip opening.

[0010] Preferably, a movable rod is hingedly provided on the side wall of the handle, an insertion rod is fixedly connected to the side wall of the cover plate, a through hole is opened on the inner wall of the movable rod, and the rod wall of the insertion rod is inserted into the inner wall of the movable rod located at the through hole.

[0011] Preferably, the insertion rod is configured as an arc-shaped rod, and the inner wall of the movable rod located at the through hole is configured as an arc surface.

[0012] Compared with the prior art, the utility model provides a sampling device for large benthic animals in water bodies, which has the following beneficial effects:

[0013] 1. The sampling device for large benthic animals in water bodies inserts the cone into the bottom of the water so that the sampling box is set close to the bottom of the water, ensuring that the sampling box is stably placed on the bottom of the water. At the same time, the torsion spring pushes the extension plate to extend into the bottom of the water, thereby increasing the contact area of ​​the cone in the bottom of the water and improving the anti-sway effect of the sampling box.

[0014] 2. The sampling device for large benthic animals in water bodies pushes the rounded corners on the side walls of the block when the cover falls and closes, causing the block to shrink into the cavity until the cover is completely closed. The spring can push the block to extend to the outside of the connecting seat, so that the block is clamped on the side walls of the cover to ensure the stability of the cover closure.

[0015] 3. The sampling device for large benthic animals in water bodies can keep the cover stable after it is opened by opening the cover so that the insertion rod can be inserted into the inside of the insertion hole of the movable rod. The cover is set as a stainless steel plate, and the cover can be closed automatically under the influence of gravity by subsequently moving the movable rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a sampling device for large benthic animals in water bodies proposed by the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the local A part;

[0018] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of part B in the middle.

[0019] In the figure: 1 sampling box, 2 handle, 3 cover plate, 4 grid plate, 5 cone, 6 fixing rod, 7 extension plate, 8 torsion spring, 9 pull rope, 10 pull ring, 11 connecting seat, 12 spring, 13 stopper, 14 lever, 15 movable rod, 16 plug rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-3 A sampling device for large benthic animals in water bodies, comprising a sampling box 1, a handle 2 is fixedly connected to the top of the sampling box 1, an opening is provided on the side wall of the sampling box 1, a cover plate 3 is hingedly provided on the inner wall of the sampling box 1 located at the opening, a grid plate 4 is fixedly connected to the side wall of the sampling box 1, an insert cone 5 is fixedly connected to the bottom of the sampling box 1, a groove is provided on the inner wall of the insert cone 5, a fixing rod 6 is fixedly connected to the inner wall of the insert cone 5 located at the groove, an extension plate 7 and a torsion spring 8 are movably sleeved on the rod wall of the fixing rod 6, one end of the torsion spring 8 is fixedly connected to the inner wall of the extension plate 7, the other end of the torsion spring 8 is fixedly connected to the inner wall of the insert cone 5, and the extension plate 7 extends to the outside of the insert cone 5.

[0022] The top side wall of the extension plate 7 is set as an arc surface, and a pull rope 9 is fixedly connected to the side wall of the extension plate 7. A recess is opened on the inner wall of the bottom end of the sampling box 1. The end of the pull rope 9 away from the extension plate 7 extends to the inside of the recess and is fixedly connected to a pull ring 10.

[0023] When in use, the handle 2 is pressed to insert the cone 5 into the bottom of the water, so that the sampling box 1 is fitted and set on the bottom of the water, which can ensure that the sampling box 1 is stably placed on the bottom of the water. At the same time, the torsion spring 8 can push the extension plate 7 to extend into the bottom of the water. The contact area of ​​the cone 5 in the bottom of the water can be increased, the anti-sway effect of the sampling box 1 can be increased, and the stability of the sampling box 1 can be further improved. Subsequently, pulling the pull ring 10 can make the extension plate 7 shrink to the inside of the groove, which is convenient for pulling out the cone 5 and moving the sampling box 1 by pulling the handle 2, and the cover plate 3 can close the opening of the sampling box 1 to facilitate the sealing of the sampling box 1 after the subsequent sampling is completed.

[0024] In order to ensure the stability of the cover plate 3 closing, Figure 1-3As shown, the sampling box 1 is fixedly connected to a connecting seat 11 at the bottom side wall of the opening, a cavity is opened on the inner wall of the connecting seat 11, a spring 12 is fixedly connected to the inner wall of the cavity, a stopper 13 is fixedly connected to the end of the spring 12, the stopper 13 passes through the cavity and extends to the outside of the connecting seat 11, a chamfer is opened on the right side of the top of the stopper 13, a lever 14 is fixedly connected to the side wall of the stopper 13, a strip-shaped opening is opened on the inner wall of the connecting seat 11, and the rod wall of the lever 14 is slidably arranged on the inner wall of the connecting seat 11 located at the strip-shaped opening.

[0025] When the cover 3 falls and closes, it will push the rounded corners on the side walls of the stopper 13, causing the stopper 13 to shrink into the cavity until the cover 3 is completely closed. The spring 12 can push the stopper 13 to extend to the outside of the connecting seat 11, so that the stopper 13 is clamped on the side walls of the cover 3 to ensure the stability of the closing of the cover 3.

[0026] In order to keep the cover plate 3 stable after opening, Figure 1-3 As shown, a movable rod 15 is hingedly provided on the side wall of the handle 2, an insertion rod 16 is fixedly connected to the side wall of the cover plate 3, a through hole is opened on the inner wall of the movable rod 15, the rod wall of the insertion rod 16 is inserted into the inner wall of the movable rod 15 located in the through hole, the insertion rod 16 is set as an arc-shaped rod, and the inner wall of the movable rod 15 located in the through hole is set as an arc surface.

[0027] When sampling, the cover 3 is opened so that the insertion rod 16 can be inserted into the inside of the insertion hole of the movable rod 15, so that the cover 3 can remain stable after opening. The cover 3 is set as a stainless steel plate, and the subsequent tossing of the movable rod 15 can make the cover 3 close automatically under the influence of gravity.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sampling device for macrobenthic animals in water, comprising a sampling box (1), characterized in that: The top of the sampling box (1) is fixedly connected to a handle (2), an opening is provided on the side wall of the sampling box (1), a cover plate (3) is hingedly provided on the inner wall of the sampling box (1) located at the opening, a grille plate (4) is fixedly connected to the side wall of the sampling box (1), an insert cone (5) is fixedly connected to the bottom of the sampling box (1), a groove is provided on the inner wall of the insert cone (5), a fixing rod (6) is fixedly connected to the inner wall of the insert cone (5) located at the groove, an extension plate (7) and a torsion spring (8) are movably sleeved on the rod wall of the fixing rod (6), one end of the torsion spring (8) is fixedly connected to the inner wall of the extension plate (7), the other end of the torsion spring (8) is fixedly connected to the inner wall of the insert cone (5), and the extension plate (7) extends to the outside of the insert cone (5).

2. A sampling device for macrobenthic animals in water bodies according to claim 1, characterized in that: The top side wall of the extension plate (7) is arranged as an arc surface, a drawstring (9) is fixedly connected to the side wall of the extension plate (7), a recess is provided on the inner wall of the bottom end of the sampling box (1), and one end of the drawstring (9) facing away from the extension plate (7) extends to the inside of the recess and is fixedly connected to a draw ring (10).

3. A sampling device for macrobenthic animals in water bodies according to claim 1, characterized in that: The sampling box (1) is fixedly connected to a connecting seat (11) at the side wall of the bottom end of the opening, the inner wall of the connecting seat (11) is provided with a cavity, the inner wall of the cavity is fixedly connected to a spring (12), the end of the spring (12) is fixedly connected to a stopper (13), and the stopper (13) passes through the cavity and extends to the outside of the connecting seat (11).

4. A sampling device for macrobenthic animals in water bodies according to claim 3, characterized in that: The top right side of the stopper (13) is provided with a rounded corner, a lever (14) is fixedly connected to the side wall of the stopper (13), an inner wall of the connecting seat (11) is provided with a strip-shaped opening, and a rod wall of the lever (14) is slidably arranged on the inner wall of the connecting seat (11) located at the strip-shaped opening.

5. A sampling device for macrobenthic animals in water bodies according to claim 1, characterized in that: A movable rod (15) is hingedly provided on the side wall of the handle (2), an insertion rod (16) is fixedly connected to the side wall of the cover plate (3), a through hole is provided on the inner wall of the movable rod (15), and the rod wall of the insertion rod (16) is inserted into the inner wall of the movable rod (15) located at the through hole.

6. A sampling device for macrobenthic animals in water bodies according to claim 5, characterized in that: The insertion rod (16) is configured as an arc-shaped rod, and the inner wall of the movable rod (15) located at the through hole is configured as an arc surface.

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