CN213933193U

CN213933193U - Sampling device for observing sediment

Info

Publication number: CN213933193U
Application number: CN202022914168.7U
Authority: CN
Inventors: 李君菲; 王照宜; 陈捷
Original assignee: Guangzhou Pujing Ecological Protection Technology Co ltd
Current assignee: Guangzhou Pujing Ecological Protection Technology Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-08-10
Anticipated expiration: 2030-12-08

Abstract

The utility model discloses an survey sampling device of deposit, including barre, drilling rod, sampling pipe, drill bit and first pivot, the barre passes through the drilling rod and is connected with the one end of sampling pipe, the other end and the drill bit of sampling pipe are connected, the sampling pipe includes outer tube and inner tube, the inner tube cup joints in the outer tube, the outer wall of inner tube is tangent with the inner wall of outer tube, the outer tube is equipped with the shaft cavity, the drill bit includes main part, drive mechanism and ball valve, the main part is equipped with the communicating sample connection in sampling cavity with the inner tube, the ball valve passes through drive mechanism and installs in the sample connection, the one end of first pivot is connected with drive mechanism after passing the shaft cavity. The utility model discloses the sampling pipe leakproofness is good, can avoid the omission of fluid and semifluid sample among the deposit acquisition process, is applicable to the collection of the sediment sample of the sediment matter of different particle diameters, silt mixed matter, argillaceous.

Description

Sampling device for observing sediment

Technical Field

The utility model relates to an environmental monitoring technique and device relate to a survey sampling device of deposit.

Background

In the restoration of the water environment of a drainage basin, the sediment of water areas such as rivers, lakes, wetlands and the like is often investigated. The investigation comprises a macroscopic level and a microscopic level, and the macroscopic characteristics, such as mud-water interface position, sediment color, vertical layering condition and the like, are mainly analyzed from the macroscopic level; on a microscopic level, the physical and chemical properties of the deposit, such as mineral composition, structural characteristics, layered characteristic pollutant content and the like, are mainly analyzed and researched.

At present, a plurality of sampling devices aiming at sediments and soil exist, but the sampling devices have the following defects: (1) the common sediment sampling device cannot effectively collect semifluid silt and silt, because the closeness of the bottom end component is generally poor, the sediment is easy to miss in the process of leaving the water surface after the sediment is grabbed, the sampling efficiency is low, and especially when loose silt and silt containing fine particles are collected, the collection rate of sediment samples is lower; (2) the position of a mud-water interface and the sedimentation and floating conditions of substances on the mud-water interface cannot be visually observed, and the color change and the layering conditions of the sediment in the vertical direction cannot be accurately and visually observed.

The accurate grasp of the sediment layering situation is one of the key factors for scientifically and reasonably selecting the water environment restoration technology, and therefore, a sampling device which can perfectly keep the original state structure of the sediment and is convenient for observing the sediment layering situation is needed to be provided.

SUMMERY OF THE UTILITY MODEL

To the technical problem who exists among the prior art, the utility model aims at providing a sampling device that deposit was surveyd, the in-process that the sampling device that this deposit was surveyd left the surface of water after accomplishing the deposit sampling is difficult for causing the deposit to omit, and sampling efficiency is high, is applicable to the collection of the deposit sample of the sand matter of different particle diameters, silt mixture matter and muddy matter.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an survey sampling device of deposit, includes barre, drilling rod, sampling pipe, drill bit and first pivot, the barre passes through the drilling rod and is connected with the one end of sampling pipe, the other end and the drill bit of sampling pipe are connected, the sampling pipe includes outer tube and inner tube, the inner tube cup joints in the outer tube, the outer wall of inner tube is tangent with the inner wall of outer tube, the outer tube is equipped with the shaft cavity, the drill bit includes main part, drive mechanism and ball valve, the main part be equipped with the communicating sample connection in the sampling cavity of inner tube, the ball valve passes through drive mechanism and installs in the sample connection, the one end of first pivot is passed and is connected with drive mechanism behind the shaft cavity.

Preferably, the transmission mechanism comprises a first bevel gear, a second bevel gear and a second rotating shaft, one end of the first rotating shaft is connected with the first bevel gear, the first bevel gear is meshed with the second bevel gear, the second bevel gear is connected with one end of the second rotating shaft, and the other end of the second rotating shaft is connected with the ball valve.

Preferably, the other end of the first rotating shaft is provided with a cross rod, and the middle part of the cross rod is connected with the other end of the first rotating shaft.

Preferably, the lateral wall of outer tube is equipped with the fretwork window that is used for observing the inner tube, the inner tube adopts transparent material to make, the lateral wall of inner tube is equipped with the scale.

Preferably, the drill rod comprises a loop bar base and at least one loop bar, the loop bars are sequentially connected, the 2 loop bars located at the head and the tail are respectively connected with the handle bar and the loop bar base, and the loop bar base is connected with the outer pipe.

Preferably, the loop bar base includes connecting portion and hemisphere portion, the one end of connecting portion is connected with the center of the convex surface of hemisphere portion, hemisphere portion and outer tube joint, the other end and the loop bar of connecting portion are connected, connecting portion and hemisphere portion integrated into one piece.

Preferably, the hemisphere portion is provided with a drainage channel communicated with the inner tube.

Preferably, the lower extreme of hemisphere portion is equipped with the draw-in groove, the outer tube is equipped with the buckle, hemisphere portion and buckle joint.

Preferably, the outer tube is provided with an installation cavity for being sleeved with the inner tube, and the circle center of the cross section of the installation cavity deviates from that of the cross section of the outer tube.

Preferably, the outer diameter of the drill bit is gradually reduced from the upper end to the lower end of the drill bit.

The utility model discloses relative prior art has following advantage and beneficial effect:

1. the utility model discloses an observation deposit's sampling device, this sampling pipe adopt the inner tube to cup joint in the outer tube, and the outer tube is equipped with the axle chamber, is equipped with first pivot in the axle chamber, through the ball valve switch in the control drill bit of first pivot, and this sampling pipe leakproofness is good, can avoid the omission of fluid and semifluid sample among the deposit collection process, is applicable to the collection of the deposit sample of the sand of different particle diameters, silt mixture matter and mud matter.

2. The utility model discloses survey sampling device of deposit, the outer tube of this sampling pipe is the fretwork window with the tangent one side of inner tube, exposes transparent sampling inner tube and manages scale, forms visual window, can survey the vertical colour change of deposit and the layering condition, muddy water interfacial position and muddy water interface material subsides and the macroscopic characteristics such as the condition of floating fast, directly perceivedly in deposit collection process.

3. The utility model discloses survey sampling device of deposit, sampling pipe convenient operation, sampling device comprise different parts, and each part size is less, portable, and extensively be used for river, lake or wetland sediment investigation and sample acquisition.

Drawings

Fig. 1 is a cross-sectional view of a sampling device for observing sediments according to the present invention.

Fig. 2 is an enlarged view of a drill bit of a sampling device for observing sediments according to the present invention.

Fig. 3 is a schematic diagram of a sampling device for observing sediments according to the present invention.

Fig. 4 is a cross-sectional view taken along line a-a of a sampling device for observing sediments according to the present invention.

Fig. 5 is a top view of the sampling device for observing sediment according to the present invention.

The device comprises a handle 1, a drill rod 2, a sleeve 201, a sleeve base 202, a drainage channel 203, a sampling pipe 3, an outer pipe 301, an inner pipe 302, an axial cavity 303, a first rotating shaft 304, a cross rod 305, a drill bit 4, a ball valve 401, a first bevel gear 402, a second bevel gear 403, a second rotating shaft 404, a hollow window 5 and a buckle 6.

Detailed Description

The purpose of the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments, which are not repeated herein, but the embodiments of the present invention are not limited to the following embodiments.

As shown in fig. 1 to 5, a sampling device for observing sediments comprises a handle bar 1, a drill rod 2, a sampling tube 3, a drill bit 4 and a first rotating shaft 304, wherein the handle bar 1 is connected with one end of the sampling tube 3 through the drill rod 2, the other end of the sampling tube 3 is connected with the drill bit 4, the sampling tube 3 comprises an outer tube 301 and an inner tube 302, the outer tube 301 and the inner tube 302 are both cylindrical, the inner tube 302 is sleeved on the outer tube 301, the inner tube 302 and the outer tube 301 are detachably assembled, the outer wall of the inner tube 302 and the inner wall of the outer tube 301 are tangent to form an eccentric structure, the outer tube 301 is provided with a shaft cavity 303, the first rotating shaft 304 is arranged in the shaft cavity 303, the first rotating shaft 304 is vertically arranged in the shaft cavity 303, the inner cavity of the inner tube 302 is communicated with a sampling port of the drill bit 4, the drill bit 4 comprises a main body, a transmission mechanism and a ball valve 401, the main body is provided with a sampling port communicated with the sampling cavity of the inner tube 302, the ball valve 401 is mounted at the sampling port through a second rotating shaft 404 of the transmission mechanism, and one end of the first rotating shaft 304 passes through the shaft cavity 303 and then is connected with the transmission mechanism. Rotation through control ball valve 401 realizes that the sample connection of drill bit 4 opens and closes, and this sampling pipe 3 is applied to the collection of the deposit of different particle diameters and argillaceous with being connected of drill bit 4, and when ball valve 401 was in the closure state, this sampling device leakproofness was good, can avoid the omission of fluid and semifluid sample among the deposit collection process, is applicable to the collection of the sediment sample of the sediment of the sand of different particle diameters, silt mixture matter and argillaceous, and can guarantee the high efficiency of sample collection.

The transmission mechanism comprises a first bevel gear 402, a second bevel gear 403 and a second rotating shaft 404, one end of the first rotating shaft 304 is connected with the first bevel gear 402, the first bevel gear 402 is meshed with the second bevel gear 403, and the transmission power direction of the first rotating shaft 304 is changed through the first bevel gear 402, so that the second bevel gear 403 drives the second rotating shaft 404. The second bevel gear 403 is connected with one end of a second rotating shaft 404, the other end of the second rotating shaft 404 is connected with the ball valve 401, the ball valve 401 is connected with the inner wall of the drill bit 4 in a sliding mode through the second rotating shaft 404, the first rotating shaft 304 transmits power to the first bevel gear 402, the first bevel gear 402 transmits power to the second rotating shaft 404 through the second bevel gear 403, and the second rotating shaft 404 controls the rotation of the ball valve 401, so that the sampling port of the drill bit 4 is opened and closed.

The other end of the first rotating shaft 304 is provided with a cross rod 305, the middle of the cross rod 305 is connected with the other end of the first rotating shaft 304, acting force is applied to screw the cross rod 305, the cross rod 305 rotates clockwise/anticlockwise around the first rotating shaft 304, acting force of workers for controlling the opening and closing of the ball valve 401 is saved through the cross rod 305, and sampling efficiency is improved.

The side wall of the outer pipe 301 is provided with a hollowed window 5 for observing the inner pipe 302, the hollowed window 5 is located on a contact surface of the inner pipe 302 tangent to the outer pipe 301, and the contact surface of the inner pipe 302 tangent to the outer pipe 301 is small, so that the area of the hollowed window 5 occupying the side wall of the outer pipe 301 is small, the stability and the strength of the whole structure of the outer pipe 301 cannot be affected, the inner pipe 302 is made of a transparent material, after sampling is completed, the muddy water interface position, the sedimentation and floating condition of muddy water interface substances, the vertical color change and the layering condition of sediments can be rapidly and visually observed through the hollowed window 5, and the hollow window can be widely applied to the field of water environment restoration. The side wall of the inner tube 302 is provided with a graduated scale for observing the vertical color change of the sediment and the specific depth of the layering condition, so that the sampling data can be conveniently measured and recorded.

Drill pipe 2 includes loop bar base 202 and an at least loop bar 201, and each loop bar 201 connects gradually, and 2 loop bars 201 that are located the head and the tail are connected with barre 1 and loop bar base 202 respectively, loop bar base 202 is connected with outer tube 301, and loop bar 201 is installed in the middle part of barre 1, and in the sampling process, exert the effort and twist barre 1, push down sampling pipe 3 through barre 1, make sampling pipe 3 can be quick insert the muddy bottom, save the effort, the both ends of barre 1 still are equipped with a plurality of indents, increase frictional force, the operation of being convenient for, mode through threaded connection, make this sampling device easily carry, convenient dismantlement and equipment. The loop bar 201 is composed of a plurality of steel pipes, the steel pipes are connected in a threaded mode, the length of the loop bar 201 is increased, and the steel pipes are connected and assembled into a sleeve according to the depth of water in a river on site, so that the loop bar is suitable for sampling of different river depths.

The loop bar base 202 includes connecting portion and hemisphere portion, the one end of connecting portion is connected with the center of the convex surface of hemisphere portion, hemisphere portion and outer tube 301 joint, the other end and the loop bar 201 of connecting portion are connected, are connected through connecting portion and hemisphere portion, make the effort of barre 1 concentrate more, connecting portion and hemisphere portion integrated into one piece make the structure more stable, hemisphere portion's lower extreme is equipped with the draw-in groove, outer tube 301 is equipped with buckle 6, hemisphere portion and 6 joints of buckle make things convenient for sampling tube 3 to install in dismantling through the mode of joint.

The hemisphere part is provided with a drainage channel 203 communicated with the inner pipe 302, and after sampling of the sampling pipe is completed, water in the inner pipe 302 is drained from the drainage channel 203.

The outer tube 301 is provided with an installation cavity for sleeving the inner tube 302, and the center of the cross section of the installation cavity deviates from that of the outer tube 301. When the inner pipe 302 is installed in the installation cavity, the center of the cross section of the inner pipe 302 does not overlap with the center of the cross section of the outer pipe 301, so that an eccentric structure is formed. This inner tube 302 and shaft cavity 303 are compactly arranged in the outer tube, and also facilitate the experimenter to observe the sampling sample of the inner tube 302 through the hollow window 5.

The outer diameter of the drill bit 4 is gradually reduced from the upper end to the lower end of the drill bit 4, and the drill bit 4 is conical and used for being inserted into a bottom mud layer of a river, so that the contact surface is reduced, and the acting force during insertion is saved.

The sampling method based on the sampling device for observing the sediment comprises the following steps:

the method comprises the following steps: vertically extending the sampling pipe 3 into water, screwing the cross rod 305 to open the ball valve 401 after the drill bit 4 is close to sediment or bottom mud, pressing down the sampling device again to press the sediment into the inner pipe 302, screwing the cross rod 305 again to close the ball valve 401 after the drill bit 4 is pressed down to a preset depth, and completing sampling;

step two: after the sampling pipe 3 is pulled out of the water surface, macroscopic characteristics such as color change, layering and the like in the vertical direction of the sediment are observed, water in the inner pipe 302 is poured out from the drainage channel 203, the drill rod 2 is separated from the sampling pipe 3, only the sediment soil column is left in the inner pipe 302, and the sediment soil column is stored. The inner pipe 302 and the outer pipe 301 are separated again to remove the inner pipe 302, thereby obtaining a complete column of sediment. The drill bit 4 and drill rod 2 are then flushed, a new inner tube 302 is inserted, and the assembly, i.e. the sampling, is performed again.

The sampling method is simple and convenient to operate, can sample different areas for multiple times, is convenient to store sampled samples, increases the sampling working efficiency, and can be widely used for river, lake or wetland investigation and sample collection.

The above-mentioned specific implementation is the preferred embodiment of the present invention, can not be right the utility model discloses the limit, any other does not deviate from the technical scheme of the utility model and the change or other equivalent replacement modes of doing all contain within the scope of protection of the utility model.

Claims

1. The utility model provides an survey sampling device of deposit, includes barre, drilling rod, sampling pipe, drill bit and first pivot, the barre passes through the drilling rod to be connected with the one end of sampling pipe, the other end and the drill bit of sampling pipe are connected its characterized in that: the sampling pipe includes outer tube and inner tube, the inner tube cup joints in the outer tube, the outer wall of inner tube is tangent with the inner wall of outer tube, the outer tube is equipped with the shaft cavity, the drill bit includes main part, drive mechanism and ball valve, the main part be equipped with the communicating sample connection in sampling cavity of inner tube, the ball valve passes through drive mechanism and installs in the sample connection, the one end of first pivot is passed and is connected with drive mechanism behind the shaft cavity.

2. A sampling device for observing sediment according to claim 1, wherein: the transmission mechanism comprises a first bevel gear, a second bevel gear and a second rotating shaft, one end of the first rotating shaft is connected with the first bevel gear, the first bevel gear is meshed with the second bevel gear, the second bevel gear is connected with one end of the second rotating shaft, and the other end of the second rotating shaft is connected with the ball valve.

3. A sampling device for observing sediment as defined in claim 2, wherein: the other end of the first rotating shaft is provided with a cross rod, and the middle part of the cross rod is connected with the other end of the first rotating shaft.

4. A sampling device for observing sediment according to claim 1, wherein: the lateral wall of outer tube is equipped with the fretwork window that is used for observing the inner tube, the inner tube adopts transparent material to make, the lateral wall of inner tube is equipped with the scale.

5. A sampling device for observing sediment according to claim 1, wherein: the drill rod comprises a loop bar base and at least one loop bar, the loop bars are sequentially connected, 2 loop bars located at the head and the tail are respectively connected with the handle bar and the loop bar base, and the loop bar base is connected with the outer pipe.

6. A sampling device for observing sediment according to claim 5, wherein: the loop bar base includes connecting portion and hemisphere portion, the one end of connecting portion is connected with the center of the convex surface of hemisphere portion, hemisphere portion and outer tube joint, the other end and the loop bar of connecting portion are connected, connecting portion and hemisphere portion integrated into one piece.

7. The sampling device for observing sediment of claim 6, wherein: the hemisphere part is provided with a drainage channel communicated with the inner pipe.

8. A sampling device for observing sediment as defined in claim 7, wherein: the lower extreme of hemisphere portion is equipped with the draw-in groove, the outer tube is equipped with the buckle, hemisphere portion and buckle joint.

9. A sampling device for observing sediment according to claim 1, wherein: the outer pipe is provided with an installation cavity used for being sleeved with the inner pipe, and the circle center of the cross section of the installation cavity deviates from that of the cross section of the outer pipe.

10. A sampling device for observing sediment according to claim 1, wherein: the outer diameter of the drill bit is gradually reduced from the upper end to the lower end of the drill bit.