CN205941036U - Controllable portable surface sediment sampling device of sampling thickness - Google Patents

Abstract

The utility model discloses a portable surface sediment sampling device with controllable sampling thickness, which comprises a bottom plate (1), a left side plate (2), a right side plate (3), a push rod (4), and a positioning plate (5) , the back plate (6); the push rod (4) is hinged with the outer side of the base plate (1); the left side plate (2) and the right side plate (3) have N pairs of mounting grooves (7) with the same distance from the base plate, The intervals between the adjacent mounting grooves (7) on the left side plate (2) and the right side plate (3) are the same, and the positioning plate (5) is arranged in the mounting grooves (7) parallel to the bottom plate (5). The left side plate and the right side plate of the sampling device have installation grooves at different positions, and the sampling thickness is adjusted by setting the distance between the positioning plate and the bottom plate, so that the sampling device can realize sediment sampling of different thicknesses. The sampling device has adjustable sampling thickness, accurate sampling, convenient operation, light weight, detachable, and easy to carry.

Description

A Portable Surface Sediment Sampling Device with Controllable Sampling Thickness

technical field

The utility model relates to a sample collection device, in particular to a portable surface sediment sampling device with controllable sampling thickness.

Background technique

Sediment is an important part of waters such as rivers, lakes, reservoirs, and oceans. It can exchange materials with the overlying water body through various channels. The migration and transformation of heavy metals, organic chlorine and other pollutants in sediments have great impact on aquatic organisms and The living environment of benthic animals plays an important role. The "health" of sediments is undoubtedly related to the health of aquatic ecosystems, and then affects humans through the food chain. Therefore, it is of great significance to collect and monitor sediment samples .

At present, there are many types of sediment sampling devices developed at home and abroad, mainly including gravity samplers, piston samplers, connecting rod samplers, freezing samplers and drilling samplers. Gravity samplers are divided into two types: grab type and column type. The grab type sampler has a simple structure and is easy to operate, but it is heavy and inconvenient to carry. Large disturbance of sediment samples, poor sealing, easy to cause problems such as sample loss and low collection efficiency, usually only used for the collection of surface mixed sediment samples.

The columnar sampler is inserted vertically into the sediment to obtain undisturbed columnar sediment samples. The samples obtained are very representative. The columnar samplers currently used are mostly complex in structure, large in size and heavy, requiring Specialized lifting equipment is expensive and inconvenient to operate, and the terrain in many testing areas is rugged, making it inconvenient to carry heavy equipment.

Many studies and practices only need to collect surface sediment samples. The current sediment sampling device has complex structure, high cost, high manpower consumption, and is not easy to carry. A surface sediment sampling device with controllable sampling thickness is a technical problem to be solved urgently by those skilled in the art.

Utility model content

In order to solve the technical problems of complex structure, high cost and uncontrollable sampling thickness of the current sediment sampling device, the utility model provides a portable surface sediment sampling device.

The utility model provides a portable surface sediment sampling device with controllable sampling thickness, including: a bottom plate, a left side plate, a right side plate, a push rod, a positioning plate, and a back plate;

The left side board is fixedly connected to the left side of the bottom board, the right side board is fixedly connected to the right side of the bottom board, and the bottom end of the back board is fixedly connected to the rear end of the bottom board. The left side of the backboard is connected to the left side board, the right side of the backboard is connected to the right side board; the push rod is hinged to the outer side of the bottom board; the left side board is connected to the The right side plate has N pairs of installation grooves with the same distance from the bottom plate, the N is an integer greater than or equal to 1, and the distance between the adjacent installation grooves on the left side plate and the right side plate is the same, and the The positioning plate is arranged in the installation groove parallel to the bottom plate.

The above-mentioned portable surface sediment sampling device with controllable sampling thickness also has the following characteristics:

One end of the positioning plate is provided with an arc-shaped connecting plate, and the bending direction of the arc-shaped connecting plate is opposite to the side of the bottom plate; or, one end of the positioning plate is provided with an inclined plate, and the inclined plate The direction of inclination is opposite to one side of the bottom plate.

The above-mentioned portable surface sediment sampling device with controllable sampling thickness also has the following characteristics:

The push rod includes a main push rod, a left push rod and a right push rod; a left push rod mounting seat is installed on the bottom of the outside of the left side plate; a right push rod mounting seat is installed on the bottom of the outside of the right side plate ; the left push rod is hinged on the left push rod mount through the first pin; the right push rod is hinged on the right push rod mount through the second pin; the main push rod is telescopic pole.

Or, the main push rod forms a herringbone structure with the left push rod and the right push rod, or, the push rod further includes a beam connected with the main push rod, and the left push rod and the right push rod The above-mentioned right push rods are arranged in parallel and are connected by connecting beams.

The above-mentioned portable surface sediment sampling device with controllable sampling thickness also has the following characteristics:

At least one push rod clamping device is symmetrically provided on the outer sides of the ends of the left side plate and the right side plate connected to the back plate.

The above-mentioned portable surface sediment sampling device with controllable sampling thickness also has the following characteristics:

The portable surface sediment sampling device also includes a shielding plate, the inner side of the side that is not connected to the bottom plate and the back plate on the left side has a chute, and the right side plate is connected to the bottom plate There is a chute on the inner side of the side that is not connected to the back board, and the two sides of the shielding board are respectively arranged in the chute of the left side board and the chute of the right side board.

The above-mentioned portable surface sediment sampling device with controllable sampling thickness also has the following characteristics:

The portable surface sediment sampling device has at least one of the following features: the left side board and the right side board are provided with a plurality of side board water leakage holes; the back board is provided with a plurality of back boards Leakage holes; the bottom plate is provided with a plurality of bottom plate water leakage holes.

The above-mentioned portable surface sediment sampling device with controllable sampling thickness also has the following characteristics:

The angle between the left side plate and the front end of the bottom plate is a value between 20 degrees and 70 degrees; the angle between the right side plate and the front end of the bottom plate The angle of the front connection part is the same.

The above-mentioned portable surface sediment sampling device with controllable sampling thickness also has the following characteristics:

The angle between the left side plate and the front end of the bottom plate is 60 degrees.

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

In the portable surface sediment sampling device provided by the utility model, the left side plate and the right side plate have installation grooves at different positions, the positioning plate is fixed in the installation groove and the positioning plate is arranged parallel to the bottom plate. The sampling thickness is adjusted by setting the distance between the positioning plate and the bottom plate, so that the sampling device can realize sediment sampling of different thicknesses, thereby meeting the requirements of different sampling thicknesses. The sampling device has adjustable sampling thickness, accurate sampling, convenient operation, light weight, detachable, and easy to carry. The sampling device is suitable for the scene where the staff extends the push rod into the bottom of the water at an angle inclined to the water surface for collection, which is convenient for the staff to collect targets that are far away from the hull.

Description of drawings

The accompanying drawings constituting a part of the utility model are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 is the structural representation of portable surface sediment sampling device among the embodiment one;

Fig. 2 is a schematic structural view of the positioning plate in the first embodiment.

Fig. 3 is a schematic structural diagram of the buckle-type fixing device in the first embodiment.

Fig. 4 is the top view of the portable surface sediment sampling device with the first kind of push rod structure in embodiment one;

Fig. 5 is the top view of the portable surface sediment sampling device with the second push rod structure in Embodiment 1;

Fig. 6 is the structural representation of portable surface sediment sampling device in embodiment two;

Fig. 7 is the structural representation of portable surface sediment sampling device in embodiment three;

Fig. 8 is a side view of the portable surface sediment sampling device in the third embodiment.

Explanation of reference signs:

1. Bottom plate; 2. Left side plate; 21. Left push rod mounting seat; 3. Right side plate; 31. Right push rod mounting seat; 4. Push rod; 41. Main push rod; 42. Left push rod; 43 , right push rod; 44, beam; 5, positioning plate; 51, slot; 510, hook; 52, arc-shaped connecting plate; Buckle-type fixing device; 81, fixing piece; 82, bearing; 83, buckle; 84 hook; 9, buckle; 10, shielding plate.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. Below in conjunction with accompanying drawing, each preferred embodiment of the present utility model is described further:

Embodiment one

Fig. 1 is a schematic structural diagram of a portable surface sediment sampling device with controllable sampling thickness in Example 1. The portable surface sediment sampling device includes: a base plate 1 , a left plate 2 , a right plate 3 , a push rod 4 , a positioning plate 5 , and a back plate 6 . Wherein, the left side plate 2 is fixedly connected with the left side of the base plate 1, the right side plate 3 is fixedly connected with the right side of the base plate 1, and the push rod 4 is hinged with the outer side of the base plate 1; The rear end of the back plate is fixedly connected, the left side of the back plate 6 is connected to the left side plate 2, and the right side of the back plate 6 is connected to the right side plate 3; the left side plate 2 and the right side plate 3 have N pairs of The installation groove 7, N is an integer greater than or equal to 1, the intervals between adjacent installation grooves on the left side plate 2 and the right side plate 3 are the same, and the positioning plate 5 is arranged in the installation groove in a manner parallel to the bottom plate 5 .

In this embodiment, the positioning plate 5 can be flexibly arranged in the installation grooves of different heights of the left side plate 2 and the right side plate 3, so that the distance between the positioning plate 5 and the bottom plate 1 can be freely adjusted, so that the sampling device can collect to deposits of varying thickness. The adjacent installation grooves 7 on the left side plate 2 and the right side plate 3 are separated by a fixed unit, and the fixed unit can be 1 centimeter, or 1.5 centimeters, or 2 centimeters, etc.

In order to prevent the positioning plate 5 from slipping out of the installation groove 7 during the collection process and affect the collection effect, a fixing device can be added to the sampling device. FIG. 2 is a schematic structural view of the positioning plate 5 . FIG. 3 is a schematic structural diagram of the buckle-type fixing device 8 . Both sides of the positioning plate 5 have N locking slots 51 symmetrically, and the locking slots have hooks 510 . The outer side of the left side plate 2 and the right side plate 3 is provided with a snap-in fixing device 8 corresponding to the position of the installation groove, and the snap-in fixing device 8 includes a concave fixing part 81 and bearings 82 fixed at both ends of the fixing part 81 1. A buckle 83 fixed to the bearing 82; the end of the buckle includes a hook 84.

In order to reduce the resistance of the sediment to the sampling device in the process of collecting surface sediment, one end of the positioning plate 5 is provided with an arc-shaped connecting plate 52, and the bending direction of the arc-shaped connecting plate 52 is the opposite direction relative to the side of the bottom plate 1; or, One end of the positioning plate 52 is provided with an inclined plate, and the inclined direction of the inclined plate is opposite to the side of the bottom plate 1 .

The arc-shaped connecting plate 52 or the inclined plate of the positioning plate 5 can make the positioning plate 5 receive a larger moment generated by the surface action force of the sediment during the process of collecting sediment on the bottom plate 1, and the active force reacting on the bottom plate 1 is also larger. The accuracy of the sampling thickness of the sediment sampling device prevents the technical problem of inaccurate positioning of the positioning plate 5 due to the lighter and softer sediment quality, so that the sampling thickness of the portable surface sediment is more stable and the sampling thickness is more accurate. Sediment analysis provides accurate sampling basis.

Fig. 4 is a top view of the portable surface sediment sampling device in the first embodiment. Push rod 4 comprises main push rod 41, left push rod 42 and right push rod 43; The bottom of the outside of left side plate 2 is equipped with left push rod mount 21; The bottom of the outside of right side plate 3 is equipped with right push rod installation Seat 31; Left push rod 43 is hinged on the left push rod mount 21 by the first bearing pin; Right push rod 44 is hinged on the right push rod mount 31 by the second pin shaft; Main push rod 41 is telescopic rod. The main push rod 41 is connected with the left push rod 42 and the right push rod 43 through a herringbone structure. The main push rod 41 of the herringbone structure, the left push rod 42 and the right push rod 43 can be integrally formed to improve the stability and service life of the structure.

Fig. 5 is a top view of the portable surface sediment sampling device in the first embodiment. The push rod 4 includes a beam 44 connected with the main push rod 41 , the left push rod 42 and the right push rod 43 are arranged in parallel and connected by the connecting beam 44 .

Using the sampling device in Embodiment 1, when the bottom plate 1 is pushed by the main push rod 41 to sample the sediment, even if the push rod 4 applies an inclined force to the bottom plate 1, the bottom plate 1 can travel horizontally within a certain thickness range and Collect sediment. Wherein, the main push rod 41 can be stretched, so that the whole collection device is convenient to carry and can be used flexibly according to different sampling environments.

Embodiment two

Fig. 6 is a schematic structural view of the portable surface sediment sampling device in the second embodiment. In order to prevent the problem of inaccurate collection caused by the position change of the push rod relative to the bottom plate 1 when the portable surface sediment sampling device is used for collection, the outer sides of the ends of the left side plate 2 and the right side plate 3 connected to the back plate 6 are respectively symmetrical It is provided with at least one push rod clamping device 9 . The intervals between adjacent push rod clamping devices 9 are the same.

Embodiment Three

In order to prevent the part of the sampling device that does not need to collect surface sediment from entering too much sediment during the collection process, a shielding device is added in the third embodiment. Fig. 7 is a schematic diagram of the structure of the portable surface sediment sampling device in the third embodiment. The portable surface sediment sampling device also includes a shielding plate 10, the inner side of the side that is not connected to the bottom plate 1 and the back plate 6 on the left side plate 2 has a chute, and the right side plate 3 has no connection to the bottom plate 1 and the back plate 6. The inner side of the connected side has a chute, and the two sides of the shielding plate 10 are respectively arranged in the chute of the left side plate 2 and the chute of the right side plate 3 .

In each of the above-mentioned embodiments, the following features can also be included:

In order to make the sampling device when sampling, surface deposits can stay in the sampling device, the portable surface sediment sampling device in the above-mentioned embodiments can have at least one of the following features: left side plate 2 and right side plate 3 are provided with a plurality of side plate leak holes; the back plate 6 is provided with a plurality of back plate leak holes; the bottom plate 1 is provided with a plurality of bottom plate leak holes. That is, the position of the leakage hole can be selected to be arranged on one or more surfaces of the left side plate 2, the right side plate 3, the back plate 6 and the bottom plate 1, so as to meet different sediment collection requirements.

The angle α between the left side plate 2 and the front end of the bottom plate 1 is between 20 degrees and 70 degrees, and the angle α between the right side plate 3 and the front end of the bottom plate 1 is the same as the angle between the left side plate 2 and the front end of the bottom plate 1 . Fig. 8 is a side view of the portable surface sediment sampling device in the third embodiment. After several experiments, according to the analysis of the experimental results, it is known that, preferably, the angle between the left side plate 2 and the front end of the bottom plate 1 is 60 degrees.

In order to prevent the overturning of the push rod device, the portable surface sediment sampling device in each of the above-mentioned embodiments can have the following features: the left side of the bottom plate 1 is fixed with a left block at the end area connected to the back plate 6; the right side of the bottom plate 1 is connected to the back plate 6 The right stop is fixed in the connection end area. The left stopper and the right stopper can ensure that the bottom plate 1, the left side plate 2, the right side plate 3 and the back plate 6 can pass through the left push rod mounting seat 21 and the right push rod mounting seat 31 to turn over a certain angle counterclockwise and pass through the left The stopper and the right stopper are against the left push rod 42 and the right push rod 43 . By setting the left block and the right block, and connecting the beam 44 structure, it is ensured that the bucket structure composed of the bottom plate 1, the left side plate 2, the right side plate 3 and the back plate 6 can pass through the left push rod mounting seat 21 and the right push rod Mounting seat 31 is turned clockwise relative to push rod 4 by a predetermined angle, and turned counterclockwise by a certain angle, so as to adapt to the positioning of positioning plate 5 and control the collection depth of the collection device, and will not cause the collected deposits to collapse due to excessive turning angles. spilled.

When using this sampling device, after the positioning plate 5 is inserted into the installation groove 7, it is basically parallel to the bottom plate 1, so that the positioning plate 5 forms a sampler with a fixed thickness through the left side plate 2, the right side plate 3 and the bottom plate 1 , under the condition that the push rod 4 exerts an inclined force on the bottom plate 1 and the positioning plate 5 is free of resistance, the bottom plate 1 will tilt at a certain angle to scoop up the surface deposits, and when the scooping thickness of the bottom plate 1 reaches a predetermined When the thickness is high, the positioning plate 5 will be subjected to the resistance of the top layer of the sediment, and the positioning plate 5 will pass the resistance to the bottom plate 1 through the left side plate 2 and the right side plate 3, because the two sides of the bottom plate 1 are respectively connected by hinged left push rod 42 and right push rod. rod 43, so the base plate 1 can rotate relative to the pin shaft connected by the left push rod 42 and the right push rod 43, the base plate 1 will drive the positioning plate 5 to tilt upward until the positioning plate 5 is no longer subject to the resistance of the top layer of sediment, and finally keep the base plate 1 and the positioning plate 5 are kept within a predetermined thickness range to horizontally shovel into the sediment and collect the sediment.

specific embodiment

First set the collection depth, set the collection depth to 2 cm, insert the positioning plate 5 into the left installation groove and the right installation groove with a height of 2 cm relative to the bottom plate 1, and then the collector holds the push rod 4 to place the collection device Extend into the bottom of the water to collect surface sediments with a depth of 2 cm. Since the collector pushes the push rod 4 obliquely downward at the water’s edge, the bottom plate 1 will turn counterclockwise relative to the push rod 4 through the left push rod mounting seat and the right push rod mounting seat. After the left stopper and the right stopper lean against the left push rod 42 and the right push rod 43; then, the bottom plate 1 contacts the surface deposits, and then scoops up the surface deposits. In the process of shoveling the surface deposits, the arc-shaped connecting plate 51 part of the positioning plate 5 will first contact the surface deposits, and the surface deposits will produce a certain resistance to the arc-shaped connecting plate 51. After the positioning plate 5 is flush with the deposit surface , the collector performs the collection action, the bottom plate 1 goes deep into the sediment surface to a depth of 2 cm to collect the sediment, and finally the surface sediment with a thickness of 2 cm is collected smoothly.

In the portable surface sediment sampling device provided by the utility model, the left side plate and the right side plate have installation grooves at different positions, the positioning plate is fixed in the installation groove and the positioning plate is arranged parallel to the bottom plate. The sampling thickness is adjusted by setting the distance between the positioning plate and the bottom plate, so that the sampling device can realize sediment sampling of different thicknesses, thereby meeting the requirements of different sampling thicknesses. The sampling device has adjustable sampling thickness, accurate sampling, convenient operation, light weight, detachable, and easy to carry. The sampling device is suitable for the scene where the staff extends the push rod into the bottom of the water at an angle inclined to the water surface for collection, which is convenient for the staff to collect targets that are far away from the hull.

The content described above can be implemented independently or combined in various ways, and these variants are all within the protection scope of the present utility model.

It should be noted that, in this document, the terms "comprising", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion, such that an article or device comprising a series of elements includes not only those elements, but also includes none. other elements specifically listed, or also include elements inherent in the article or equipment. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the article or device comprising said element.

The above embodiments are only used to illustrate the technical solutions of the present utility model without limitation, and the present utility model is described in detail with reference to preferred embodiments. Those skilled in the art should understand that the technical solution of the utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solution of the utility model, and all should be covered by the claims of the utility model.

Claims (8)

1. a kind of controlled portable timepiece surface sediments sampling apparatuses of sampling thickness are it is characterised in that include：Base plate (1), left side Plate (2), right plate (3), push rod (4), location-plate (5), backboard (6)；

Described left plate (2) is fixedly connected with the left side of described base plate (1), the right side of described right plate (3) and described base plate (1) Side is fixedly connected, and the bottom of described backboard (6) is fixedly connected with the rear end of described base plate (1), the left side of described backboard (6) with Described left plate (2) connects, and the right side of described backboard (6) is connected with described right plate (3)；Described push rod (4) and described base plate (1) outer avris is hinged；Have away from described base plate apart from identical N to installation on described left plate (2) and described right plate (3) Groove (7), described N is the integer more than or equal to 1, adjacent fitting grooves (7) on described left plate (2) and described right plate (3) Interval is identical, and described location-plate (5) is arranged in described mounting groove (7) in the way of parallel to described base plate (5).

2. the controlled portable timepiece surface sediments sampling apparatuses of sampling thickness as claimed in claim 1 are it is characterised in that described One end of location-plate (5) is provided with arc pressuring plate (52), and the bending direction of described arc pressuring plate (52) is relatively described bottom The rightabout of plate (1) side；Or, one end of described location-plate (52) is provided with hang plate, the inclination side of described hang plate To the rightabout for relatively described base plate (1) side.

3. the controlled portable timepiece surface sediments sampling apparatuses of sampling thickness as claimed in claim 1 are it is characterised in that described Push rod (4) includes primary push rod (41), left push rod (42) and right push rod (43)；The bottom in the outside of described left plate (2) is provided with Left push rod mounting seat (21)；The bottom in the outside of described right plate (3) is provided with right push rod mounting seat (31)；Described left push rod (43) pass through the first hinge on described left push rod mounting seat (21)；Described right push rod (44) is existed by the second hinge On described right push rod mounting seat (31)；Described primary push rod (41) is expansion link；Described primary push rod (41) and described left push rod (42) And described right push rod (43) constitutes herringbone structure, or, described push rod (4) also includes being connected with described primary push rod (41) Crossbeam (44), described left push rod (42) is be arranged in parallel with described right push rod (43), and is connected by connecting cross beam (44).

4. the controlled portable timepiece surface sediments sampling apparatuses of sampling thickness as claimed in claim 1 are it is characterised in that described What the outside of one end that left plate (2) is connected with described backboard (6) with described right plate (3) was respectively symmetrically is provided with least one Push rod clamping apparatus (9).

5. the controlled portable timepiece surface sediments sampling apparatuses of sampling thickness as claimed in claim 1 are it is characterised in that described Portable timepiece surface sediments sampling apparatuses also include shutter (10), with described base plate (1) and the described back of the body on described left plate (2) The inner side of all connectionless side of plate (6) has chute, and described right plate (3) is upper equal with described base plate (1) and described backboard (6) The inner side of connectionless side has chute, and the both sides of described shutter (10) are respectively arranged at the chute of described left plate (2) In the chute of described right plate (3).

6. the controlled portable timepiece surface sediments sampling apparatuses of sampling thickness as claimed in claim 1 are it is characterised in that described Portable timepiece surface sediments sampling apparatuses have at least one in following characteristics：Described left plate (2) and described right plate (3) On be provided with multiple side plate leaking holes；It is provided with multiple backboard leaking holes on described backboard (6)；Described base plate (1) is upper to be arranged There are multiple base plate leaking holes.

7. the controlled portable timepiece surface sediments sampling apparatuses of sampling thickness as claimed in claim 1 are it is characterised in that described Left plate (2) is upper and angle of described base plate (1) front end connecting portion is value between 20 degree to 70 degree；Described right plate (3) With the angle of described base plate (1) front end connecting portion and the angle of described left plate (2) and described base plate (1) front end connecting portion Identical.

8. the controlled portable timepiece surface sediments sampling apparatuses of sampling thickness as claimed in claim 1 are it is characterised in that described Left plate (2) is 60 degree with the angle of described base plate (1) front end connecting portion.