CN219675578U

CN219675578U - River bank shallow sediment sampling device

Info

Publication number: CN219675578U
Application number: CN202321153907.2U
Authority: CN
Inventors: 富丹良; 王之锴; 郑正
Original assignee: Fudan University
Current assignee: Fudan University
Priority date: 2023-05-12
Filing date: 2023-05-12
Publication date: 2023-09-12
Anticipated expiration: 2033-05-12

Abstract

The utility model discloses a river bank shallow sediment sampling device, which comprises: the sampling mechanism comprises a sampler, a sealing part is arranged on the bottom surface of the sampler, and a piston part is arranged in the inner cavity of the sampler; the clamping mechanism is arranged on the side wall of the sampler and is detachably connected with the sealing part; the handheld mechanism comprises an extension tube, the extension tube is fixedly connected to the top surface of the sampler, the inner cavity of the extension tube is communicated with the inner cavity of the sampler, the top surface of the extension tube is fixedly connected with a handheld part, a connecting part is arranged in the inner cavity of the handheld part, and the connecting part penetrates through the inner cavity of the extension tube and the inner cavity of the sampler and is fixedly connected with the piston part.

Description

River bank shallow sediment sampling device

Technical Field

The utility model relates to the technical field of sampling devices, in particular to a river bank shallow sediment sampling device.

Background

Deposit contamination can have adverse effects on the environment and human health. The sediment is collected and monitored through the sampler, so that the environmental quality, especially the aquatic environment such as rivers, lakes and the like, can be monitored. The deposit may contain important information about the presence and concentration of various contaminants, such as heavy metals, polycyclic Aromatic Hydrocarbons (PAHs) and other contaminants that may accumulate in the deposit over time. Sampling sediment information can help assess the potential impact of environmental health and human activity on these ecosystems. Sediment is also an important habitat for many aquatic organisms, including fish, invertebrates and plants. Sediment samples can be used in ecological research to study the biodiversity, abundance and distribution of microorganisms, plants and animals that inhabit the sediment environment, such as benthic communities of rivers, lakes and marine habitats. The study of sediment samples allows for an in-depth understanding of the ecological kinetics, species interactions and nutrient cycling processes in these ecosystems. Many countries have established regulations and guidelines for protecting the quality of sediment in their bodies of water. The collection of a sediment sample is necessary to evaluate whether it meets these regulations and take appropriate action, such as remedial action, to mitigate the effects of contamination and ensure environmental protection.

The sediment in the water body is not overflowed in the collecting cavity by means of hydrostatic pressure after the sediment is sampled, but in the practical process, part of sediment still overflows at the inlet of the exposed sampler to cause the loss of the sample.

Therefore, a novel river bank shallow sediment sampling device is needed to solve the problems, the sealing performance of the sampler in the moving process is guaranteed, the sample is prevented from leaking from the sampler, and meanwhile, the sampling is convenient.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a river bank shallow sediment sampling device, so as to solve the problems existing in the prior art, ensure the sealing performance of a sampler in the moving process, further realize that a sample cannot leak from the sampler, and simultaneously facilitate sampling.

In order to achieve the above object, the present utility model provides the following solutions, including: the sampling mechanism comprises a sampler, a sealing part is arranged on the bottom surface of the sampler, and a piston part is arranged in an inner cavity of the sampler;

the clamping mechanism is arranged on the side wall of the sampler and is detachably connected with the sealing part;

the handheld mechanism comprises an extension tube, the extension tube is fixedly connected to the top surface of the sampler, the inner cavity of the extension tube is communicated with the inner cavity of the sampler, a handheld portion is fixedly connected to the top surface of the extension tube, a connecting portion is arranged in the inner cavity of the handheld portion, and the connecting portion penetrates through the inner cavity of the extension tube and the inner cavity of the sampler and is fixedly connected with the piston portion.

Preferably, the sealing part comprises a sealing cover, a sampling port is arranged on the bottom surface of the sampler, the sealing cover is matched with the sampling port, the sealing cover is rotationally connected with the side wall of the sampler through an arc-shaped rotating rod, one end of an extension spring is fixedly connected with the connecting part of the arc-shaped rotating rod and the sampler, a circular ring is fixedly connected with the other end of the extension spring through a connecting rope, and the circular ring is detachably connected with the clamping mechanism.

Preferably, the buckle mechanism comprises a clamp, a through groove is formed in the side wall of the sampler, the clamp penetrates through the through groove, the center position of the side wall of the clamp is rotationally connected with the inner wall of the through groove through a rotating shaft, the clamp is located at one end, fixedly connected with a reset spring, of the top surface of the inner cavity of the sampler, the other end of the reset spring is fixedly connected with the top surface of the inner cavity of the sampler, and the clamp is located at the part, outside the sampler, of the clamp is detachably connected with the circular ring.

Preferably, the piston part comprises a plate-type piston, the circumferential side wall of the plate-type piston is in sliding contact with the inner wall of the sampler, the plate-type piston is fixedly connected with the connecting part, and the top surface of the plate-type piston is fixedly connected with the top surface of the inner cavity of the sampler through a plurality of compression springs.

Preferably, the holding part comprises a holding tube, the holding tube is transversely fixedly connected to the top surface of the extension tube, and the inner cavity of the holding tube is communicated with the inner cavity of the extension tube.

Preferably, the connecting portion comprises a rotating motor, the rotating motor is fixedly connected in the inner cavity of the handheld tube, a wire winding reel is fixedly connected at the output end of the rotating motor, one end of a rope is connected on the wire winding reel, the other end of the rope is fixedly connected to the top surface of the plate-type piston, and a switch of the rotating motor is fixedly connected to the top surface of the handheld tube.

Preferably, the rotating motor is electrically connected with an external power supply through the switch and the lead.

The utility model discloses the following technical effects: before the shallow sediment on the river bank is sampled, the buckle mechanism and the sealing part are manually connected, the hand-held part is manually held to insert the sampler into the sediment, the connecting part is opened to enable the piston part in the inner cavity of the sampler to move upwards, the inner cavity of the sampler is in a negative pressure state, external sediment can enter the sampler more easily, when the piston part moves to the buckle mechanism, the buckle mechanism is triggered, the connection between the buckle mechanism and the sealing part is separated, the sealing part seals the opening on the bottom surface of the sampler, the sampler is taken out, sediment samples in the sampler cannot leak from the sampler under the double sealing of hydrostatic pressure and the sealing part, and the connecting part can be controlled to release the piston part after the sampler moves to a specified position to push out the sediment samples in the sampler.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a device for sampling shallow sediment on a river bank according to the present utility model;

FIG. 2 is a schematic diagram of the structure of the sealing cap of the present utility model when opened;

FIG. 3 is a schematic view of the structure of the sealing cap of the present utility model when closed;

1, a sampler; 2. an extension tube; 3. a sealing cover; 4. a sampling port; 5. an arc-shaped rotating rod; 6. a tension spring; 7. a connecting rope; 8. a circular ring; 9. a clip; 10. a through groove; 11. a rotating shaft; 12. a return spring; 13. a plate-type piston; 14. a compression spring; 15. a hand-held tube; 16. a rotating electric machine; 17. winding up a wire reel; 18. a rope; 19. and (3) a switch.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

Referring to fig. 1-3, the present utility model provides a river bank shallow sediment sampling device, comprising: the sampling mechanism comprises a sampler 1, a sealing part is arranged on the bottom surface of the sampler 1, and a piston part is arranged in the inner cavity of the sampler 1;

the clamping mechanism is arranged on the side wall of the sampler 1 and is detachably connected with the sealing part;

the handheld mechanism comprises an extension tube 2, the extension tube 2 is fixedly connected to the top surface of the sampler 1, the inner cavity of the extension tube 2 is communicated with the inner cavity of the sampler 1, a handheld part is fixedly connected to the top surface of the extension tube 2, a connecting part is arranged in the inner cavity of the handheld part, and the connecting part penetrates through the inner cavity of the extension tube 2 and the inner cavity of the sampler 1 and is fixedly connected with the piston part.

Before sampling shallow sediment on river bank, the buckle mechanism and the sealing part are needed to be manually connected, then the hand-held part is manually held to insert the sampler 1 into the sediment, the connecting part is opened to enable the piston part in the inner cavity of the sampler 1 to move upwards, at the moment, the inner cavity of the sampler 1 is in a negative pressure state, the external sediment can enter the sampler 1 more easily, when the piston part moves upwards to the buckle mechanism, the buckle mechanism is triggered, at the moment, the connection between the buckle mechanism and the sealing part is separated, the sealing part seals the opening on the bottom surface of the sampler 1, at the moment, the sampler 1 is taken out, sediment samples in the sampler 1 cannot leak from the sampler 1 under the double sealing of hydrostatic pressure and the sealing part, and after the sampler 1 moves to a specified position, the connecting part can be controlled to release the piston part to push out the sediment samples in the sampler 1.

Further optimizing scheme, sealing portion includes sealing cap 3, and 1 bottom surface of sampler is provided with sampling port 4, sealing cap 3 and sampling port 4 looks adaptation, and sealing cap 3 is connected through arc bull stick 5 and 1 lateral wall rotation of sampler, and arc bull stick 5 and 1 junction rigid coupling of sampler have the one end of extension spring 6, and the other end of extension spring 6 has ring 8 through connecting rope 7 rigid coupling, and ring 8 and buckle mechanism can dismantle the connection.

The opening looks adaptation of the sealing cover 3 that sets up and 1 bottom surface of sample thief because the arc bull stick 5 both ends of rigid coupling are rotated with 1 lateral wall of sample thief on the sealing cover 3 are connected, consequently when ring 8 and buckle mechanism are connected, seal the bag and open, when buckle mechanism release ring 8, because extension spring 6 has the trend of downwardly moving this moment, extension spring 6 drives sealing cover 3 and moves down, and the sealing of sealing cover 3 to sample thief 1 has been accomplished jointly to the gravity of cooperation sealing cover 3 self simultaneously.

Further optimizing scheme, buckle mechanism includes checkpost 9, has offered a logical groove 10 on the 1 lateral wall of sample thief, and checkpost 9 runs through logical groove 10 to checkpost 9 lateral wall central point puts and rotates through pivot 11 and logical inslot 10 inner wall and be connected, and checkpost 9 is located 1 inner chamber department top surface rigid coupling of sample thief and has reset spring 12's one end, and reset spring 12's the other end rigid coupling is at 1 inner chamber top of sample thief, and checkpost 9 is located the part and ring 8 detachable connection outside the sample thief 1.

The clamp 9 that sets up can rotate in the logical groove 10 department of seting up on 1 lateral wall of sampler, and the part top surface that clamp 9 is arranged in 1 inner chamber of sampler is provided with reset spring 12 simultaneously, and when piston portion did not contact clamp 9, reset spring 12 promoted the one end that is arranged in 1 inner chamber of sampler clamp 9 and moves down, and the other end of clamp 9 moves up simultaneously, and clamp 9 can be connected with ring 8 this moment, and when piston portion moves up the in-process promotion was arranged in 1 inner chamber of sampler clamp 9's one end and moves up, the other end of clamp 9 moves down, and clamp 9 releases ring 8 this moment.

According to a further optimization scheme, the piston part comprises a plate-type piston 13, the circumferential side wall of the plate-type piston 13 is in sliding contact with the inner wall of the sampler 1, the plate-type piston 13 is fixedly connected with the connecting part, and the top surface of the plate-type piston 13 is fixedly connected with the top surface of the inner cavity of the sampler 1 through a plurality of compression springs 14.

The plate-type piston 13 can move upwards along the axis of the sampler 1 under the drive of the connecting part, and meanwhile, when the connecting part is released, the plate-type piston 13 can also move downwards under the pushing of a plurality of compression springs 14, and when the plate-type piston 13 moves upwards to a limiting position, the arranged clamp 9 can be triggered to release the circular ring 8.

Further optimizing scheme, the handheld portion includes handheld pipe 15, and handheld pipe 15 transversely rigid coupling is at extension pipe 2 top surface to handheld pipe 15 inner chamber and extension pipe 2 inner chamber intercommunication each other.

The provided handheld tube 15 is convenient for an operator to hold, and the inner cavity of the handheld tube 15 provides space for the arrangement of the connecting part.

Further optimizing scheme, connecting portion includes rotating electrical machines 16, and rotating electrical machines 16 rigid coupling is in handheld pipe 15 inner chamber, and rotating electrical machines 16 output rigid coupling has receipts line reel 17, is connected with the one end of rope 18 on the receipts line reel 17, and the other end rigid coupling of rope 18 is at plate piston 13 top surface, and rotating electrical machines 16's switch 19 rigid coupling is at handheld pipe 15 top surface.

The forward rotation and the reverse rotation of the rotating motor 16 can be realized by controlling the switch 19 of the rotating motor 16, meanwhile, the winding reel 17 fixedly connected with the output end of the rotating motor 16 can retract or release the rope 18 along with the forward rotation and the reverse rotation of the rotating motor 16, when the rope 18 is retracted, the plate-type piston 13 is driven to move upwards, and when the rope 18 is released, the plate-type piston 13 is pushed to move downwards by the compression spring 14.

Further preferably, the rotating motor 16 is electrically connected to the external power supply through a switch 19 and a wire.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices 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.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.

Claims

1. A river bank shallow sediment sampling device, comprising:

the sampling mechanism comprises a sampler (1), wherein a sealing part is arranged on the bottom surface of the sampler (1), and a piston part is arranged in the inner cavity of the sampler (1);

the clamping mechanism is arranged on the side wall of the sampler (1), and the clamping mechanism is detachably connected with the sealing part;

the handheld mechanism comprises an extension tube (2), the extension tube (2) is fixedly connected to the top surface of the sampler (1), an inner cavity of the extension tube (2) is communicated with the inner cavity of the sampler (1), a handheld part is fixedly connected to the top surface of the extension tube (2), a connecting part is arranged in the inner cavity of the handheld part, and the connecting part penetrates through the inner cavity of the extension tube (2) and the inner cavity of the sampler (1) and is fixedly connected with the piston part.

2. The river bank shallow sediment sampling device according to claim 1, wherein: sealing part includes sealing cap (3), sample thief (1) bottom surface is provided with sampling port (4), sealing cap (3) with sampling port (4) looks adaptation, sealing cap (3) pass through arc bull stick (5) with sample thief (1) lateral wall rotates to be connected, arc bull stick (5) with sample thief (1) junction rigid coupling has the one end of extension spring (6), the other end of extension spring (6) has ring (8) through connecting rope (7) rigid coupling, ring (8) with the connection can be dismantled to buckle mechanism.

3. The river bank shallow sediment sampling device according to claim 2, wherein: the buckle mechanism comprises a clamp (9), a through groove (10) is formed in the side wall of the sampler (1), the clamp (9) penetrates through the through groove (10), the center position of the side wall of the clamp (9) is rotationally connected with the inner wall of the through groove (10) through a rotating shaft (11), the clamp (9) is located at one end, fixedly connected with a reset spring (12), of the top surface of the inner cavity of the sampler (1), the other end of the reset spring (12) is fixedly connected with the top surface of the inner cavity of the sampler (1), and the clamp (9) is located at a part outside the sampler (1) and detachably connected with the circular ring (8).

4. The river bank shallow sediment sampling device according to claim 1, wherein: the piston part comprises a plate-type piston (13), the circumferential side wall of the plate-type piston (13) is in sliding contact with the inner wall of the sampler (1), the plate-type piston (13) is fixedly connected with the connecting part, and the top surface of the plate-type piston (13) is fixedly connected with the top surface of an inner cavity of the sampler (1) through a plurality of compression springs (14).

5. The river bank shallow sediment sampling device according to claim 4, wherein: the handheld part comprises a handheld pipe (15), the handheld pipe (15) is transversely fixedly connected to the top surface of the extension pipe (2), and the inner cavity of the handheld pipe (15) is communicated with the inner cavity of the extension pipe (2).

6. The river bank shallow sediment sampling device according to claim 5, wherein: the connecting portion comprises a rotating motor (16), the rotating motor (16) is fixedly connected in an inner cavity of the handheld pipe (15), a wire winding reel (17) is fixedly connected at the output end of the rotating motor (16), one end of a rope (18) is connected to the wire winding reel (17), the other end of the rope (18) is fixedly connected to the top surface of the plate-type piston (13), and a switch (19) of the rotating motor (16) is fixedly connected to the top surface of the handheld pipe (15).

7. The river bank shallow sediment sampling device of claim 6, wherein: the rotating motor (16) is electrically connected with an external power supply through the switch (19) and a wire.