CN209416753U - A kind of acquisition device of deposit - Google Patents

Abstract

The utility model discloses a sediment collection device, which comprises a protection tube, a sampling tube, a connector and a sealing shovel. The inside of the protection tube is provided with a sampling tube, and the sampling tube and the connector are connected through threads. The connecting parts are also fastened through threads, and the bottom end of the protective tube is fixedly connected with a sealing shovel through a central pivot. The utility model has a reasonable structural design, and the sealing shovel can isolate the sediment in the device from contacting with the external liquid and air to prevent qualitative change of the sampled sample; Separate, take out the connecting piece and the sampling tube together from the protection tube, then separate the connecting piece and the sampling tube spirally, take out a single sampling tube, disassemble the collecting tube into two connecting plates through the hinge, and take out the whole The sampled sediments will not cause the sediments to be pressed by external force, and avoid the original stratification of the sediments and the change of the depositional state.

Description

A sediment collection device

technical field

The utility model relates to the field of water environment pollution control and restoration, in particular to a sediment collection device.

Background technique

With the continuous improvement of human demand for resources and the increasing intensity of production, a large number of pollutants enter rivers, lakes and other water environments through various channels, posing a great threat to human health and ecological security. As the storage and destination of pollutants entering water bodies, sediments have extremely high theoretical research value.

Most of the sediment collection devices are columnar with an opening at the bottom. Since the collected sediment samples are columnar, scientific researchers can analyze the physical and chemical properties of sediments at different depths, the types and contents of pollutants, and microbial diversity through layered processing. Conduct thorough and exhaustive research. However, the bottoms of today's columnar collection devices are all open, and the water body is easy to mix with the bottom mud after collecting the bottom mud, which makes the bottom mud distorted. And when the investigated sediment substrate is relatively hard, strong pressure will significantly change a variety of original sedimentary properties, thus affecting the science of columnar sediment research.

Utility model content

The purpose of this utility model is to provide a sediment collection device to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A sediment collection device, comprising a protective tube, a sampling tube, a connector, a piston, a fixed rod, and a sealing shovel, the protective tube is a cylindrical tube as a whole, and a cavity is provided inside the protective tube, and the protective tube A sampling tube is provided inside the cavity, and the sampling tube is a hollow cylindrical structure as a whole; the upper end of the sampling tube is a threaded end, and the threaded end is a closed structure, and there are openings on the circumferential side wall of the threaded end. Spiral pattern; a connecting piece is arranged above the sampling pipe, the lower part body of the connecting piece is a hollow cylindrical structure, and the inner and outer side walls of the lower part body of the cylindrical connecting piece are all opened There are helical threads, and the sampling tube and the inner side wall of the lower part of the connector are fastened and connected by threads; The walls are fastened and connected by threads; a through hole is opened at the vertical axis of the connecting piece, and a push rod is arranged inside the through hole, and the bottom end of the push rod is placed at the inner bottom end of the sampling tube, and the The bottom end of the push rod is fixedly connected with a piston, and the outer wall of the piston is in contact with the inner wall of the sampling tube; the top end of the push rod is placed above the connector, and the top end of the push rod is fixedly connected with a push rod. The push block is a circular structure as a whole; the bottom end of the protection tube is fixedly connected with a sealing shovel through a central pivot, and the sealing shovel includes a left shovel body and a right shovel body, and the left shovel body and the right shovel body There are arc-shaped scrapers on the top, and fenders are fixed on the front and rear sides of the arc-shaped scrapers, and the left shovel body and the right shovel body are hinged and fixed by a central pivot, and the left shovel body Both the left shovel body and the right shovel body can rotate at a certain angle relative to the central pivot; fixed rods are fixed on the left shovel body and the right shovel body, and handles are provided on the top ends of the two fixed rods.

As a further solution of the present invention: the bottom end of the protection tube is provided with an open port, and the bottom end of the sampling tube is provided with an open feed end, and the diameter of the open port is the same as that of the feed end.

As a further solution of the present invention: the sampling tube includes two connecting plates with the same specifications, and the middle positions of the two connecting plates are connected by two hinges.

As a further solution of the utility model: protruding teeth protrude from the bottom end of the right shovel body.

As a further solution of the utility model: the inner side walls of the left shovel body and the right shovel body are provided with several anti-skid grooves.

Compared with the prior art, the beneficial effect of the utility model is: the utility model has a reasonable structural design, first the left shovel body and the right shovel body are opened, and then the handle on the fixed rod is firmly pressed down with both hands, Insert the device into the sediment to be sampled, the sediment enters the sampling tube through the open port and the feed end, and the piston drives the push rod to move upward through the action of pressure; after the sampling is completed, the two fixed rods are stretched in opposite directions , so that the left shovel body and the right shovel body are closed, and finally the device is pulled out forcefully upwards, and the sediment in the device can be isolated from contact with the external liquid and air through the sealing shovel, preventing the qualitative change of the sampled sample; When taking it out of the tube, first separate the connecting piece from the protective tube spirally, take out the connecting piece and the sampling tube together from the protective tube, then separate the connecting piece from the sampling tube spirally, take out a single sampling tube, and put the collecting tube through the hinge. Disassembled into two connecting plates, the sampled sediment can be completely taken out, the sediment will not be subjected to external pressure, and the original layering of the sediment and the change of the deposition state are avoided.

Description of drawings

Figure 1 is a schematic structural diagram of a sediment collection device.

Fig. 2 is a schematic diagram of the structure of the sediment collection device when the sealing shovel is closed.

Fig. 3 is a schematic diagram of the structure of the sampling tube in the sediment collection device.

Fig. 4 is a schematic diagram of the structure of the sealing shovel in the sediment collecting device.

Fig. 5 is a schematic diagram of the structure of the left shovel in the sediment collection device.

Fig. 6 is a schematic structural view of the right shovel in the sediment collection device.

In the figure: 1-protection tube; 2-sampling tube; 3-connector; 4-push block; 5-push rod; 6-piston; 7-fixed rod; 8-handle; 9-sealing shovel; 10-open port ;11-hinge; 12-connecting plate; 13-thread end; 14-feed end; 15-left shovel body; 16-right shovel body; Convex tooth; 20-central pivot; 21-anti-skid groove; 22-cavity.

Detailed ways

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.

Please refer to Figures 1-6, a sediment collection device, including a protection tube 1, a sampling tube 2, a connector 3, a piston 6, a fixed rod 7, and a sealing shovel 9, the protection tube 1 is a cylindrical tube as a whole, The inside of the protection tube 1 is provided with a cavity 22, the inside of the cavity 22 of the protection tube 1 is provided with a sampling tube 2, and the sampling tube 2 is a hollow cylindrical structure as a whole; the upper end of the sampling tube 2 is a screw thread end 13, the threaded end 13 is a closed structure, and a spiral pattern is provided on the circumferential side wall of the threaded end 13; a connecting piece 3 is arranged above the sampling tube 2, and the lower part of the connecting piece 3 The body is a hollow cylindrical structure, and the inner and outer side walls of the lower part body of the cylindrical connector 3 are provided with spiral patterns, and the sampling tube 2 and the inner side wall of the lower part body of the connector 3 are tightened by threads. fixed connection; the inner wall of the top end of the protective tube 1 is also provided with a helical pattern, and the outer wall of the protective tube 1 and the lower part of the connecting piece 3 is fastened and connected by threads; the vertical axis of the connecting piece 3 A through hole is opened at the center position, and a push rod 5 is arranged inside the through hole, the bottom end of the push rod 5 is placed at the inner bottom end of the sampling tube 2, and the bottom end of the push rod 5 is fixedly connected with a piston 6 , the outer wall of the piston 6 is in contact with the inner wall of the sampling tube 2; the top of the push rod 5 is placed above the connector 3, and the top of the push rod 5 is fixedly connected with a push block 4, the The push block 4 has a circular structure as a whole; the bottom end of the protective tube 1 is fixedly connected with a sealing shovel 9 through a central pivot 20, and the sealing shovel 9 includes a left shovel body 15 and a right shovel body 16, and the left shovel body 15 Both the right shovel body and the right shovel body 16 are provided with an arc-shaped scraper plate 18, and the front and rear sides of the arc-shaped scraper body 18 are fixedly provided with fenders 17, and between the left shovel body 15 and the right shovel body 16 The center is hinged and fixed by the central pivot shaft 20, and the left shovel body 15 and the right shovel body 16 can rotate at a certain angle relative to the central pivot shaft 20; The top ends of the two fixing rods 7 are provided with handles 8 .

Further, an open port 10 is provided at the bottom end of the protective tube 1 of the present invention, and an open feed port 14 is provided at the bottom end of the sampling tube 2, and the diameter of the open port 10 is the same as that of the feed port 14, It is convenient to collect sediments into the sampling pipe 2 through the open port 10 .

Further, the sampling tube 2 of the utility model includes two connecting plates 12 with the same specification, and the middle positions of the two connecting plates 12 are connected by two hinges 11; 12 is spliced into a cylindrical collection tube 2, and it is also convenient to disassemble the collection tube 2 into two connecting plates 12, so as to facilitate the removal of sampling deposits therein.

Further, the bottom end of the right shovel body 16 in the present utility model also protrudes from a protruding tooth 19, and the extended protruding teeth 19 make the bottom wall of the right shovel body 16 longer than the left shovel body 15, so that the left shovel body 15 The bottom is closed inside the shovel body of the right shovel body 16, which can better seal and close the sealing shovel 9.

Further, the inner side walls of the left shovel body 15 and the right shovel body 16 of the utility model are provided with a number of anti-skid grooves 21, through the anti-skid grooves 21, the distance between the sealing shovel 9 accommodation chamber and the wrapped sediment is increased. Friction force, a part of deposits are embedded in the anti-skid groove 21, which can play a certain supporting role, thereby enhancing the stability of the deposits in the sealing shovel 9.

The working principle of the utility model is: first, the left shovel body 15 and the right shovel body 16 are opened, and then the handle 8 on the fixed rod 7 is firmly pressed down with both hands, and the device is inserted into the sediment to be sampled. , the sediment enters the sampling tube 2 through the open port 10 and the feed end 14, and the piston 6 drives the push rod 5 to move upward through the action of pressure; after the sampling is completed, the two fixed rods 7 are stretched in opposite directions, so that The left shovel body 15 and the right shovel body 16 are closed, and finally the device is pulled out firmly upwards, and the sediment in the device can be isolated from contact with external liquid and air by the sealing shovel 9, so as to prevent the sample from sampling from qualitatively changing; When taking out the tube 2, firstly separate the connecting piece 3 from the protective tube 1, take out the connecting piece 3 and the sampling tube 2 together from the protective tube 1, then separate the connecting piece 3 from the sampling tube 2, and take out a single sample Tube 2, through the hinge 11, the collection tube 2 is disassembled into two connecting plates 12, and the sampling deposits therein can be completely taken out without causing the deposits to be pressed by external force, avoiding the original layering of the deposits and Deposition state changes.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (5)

1. A collection device for sediment, comprising protective tube (1), sampling tube (2), connector (3), piston (6), fixed rod (7), sealing shovel (9), is characterized in that: The protection tube (1) is a cylindrical tube as a whole, the inside of the protection tube (1) is provided with a cavity (22), and the inside of the cavity (22) of the protection tube (1) is provided with a sampling tube (2) , the sampling tube (2) is a hollow cylindrical structure as a whole; the upper end of the sampling tube (2) is a threaded end (13), and the threaded end (13) is a closed structure, and at the threaded end (13 ) is provided with a helical thread on the circumferential side wall; a connecting piece (3) is arranged above the sampling pipe (2), and the lower part body of the connecting piece (3) is a hollow cylindrical structure, and the The inner and outer sidewalls of the lower part body of the cylindrical connector (3) are provided with helical patterns, and the sampling pipe (2) is fastened to the inner sidewall of the lower part body of the connector (3) by threads; The inner wall of the top end of the protective tube (1) is also provided with spiral threads, and the outer wall of the protective tube (1) is fastened to the outer wall of the lower part of the connector (3) by threads; the outer wall of the connector (3) A through hole is provided at the vertical axis position, and a push rod (5) is arranged inside the through hole, and the bottom end of the push rod (5) is placed at the inner bottom end of the sampling tube (2), and the push rod The bottom end of (5) is fixedly connected with piston (6), and the outer wall of described piston (6) is in contact with the inner wall of sampling pipe (2); The top of described push rod (5) is placed on connector (3 ), and the top of the push rod (5) is fixedly connected with a push block (4), and the push block (4) is a circular structure as a whole; the bottom end of the protection tube (1) passes through the central pivot ( 20) a sealing shovel (9) is fixedly connected, and the sealing shovel (9) comprises a left shovel body (15) and a right shovel body (16), and both the left shovel body (15) and the right shovel body (16) are An arc-shaped mud scraper (18) is provided, and fenders (17) are fixedly arranged on both front and rear sides of the arc-shaped mud scraper (18), and the left shovel body (15) and the right shovel body ( 16) are hinged and fixed by the central pivot shaft (20), and the left shovel body (15) and the right shovel body (16) can rotate at a certain angle relative to the central pivot shaft (20); the left shovel body (15) and the The right shovel body (16) is fixedly provided with fixed rods (7), and the tops of the two fixed rods (7) are provided with handles (8). 2. the collection device of deposit according to claim 1, is characterized in that: the bottom end of described protective pipe (1) is provided with open port (10), and the bottom end of sampling pipe (2) is provided with open inlet port. feed end (14), and said open port (10) has the same diameter as the feed end (14). 3. The collection device of sediment according to claim 1, characterized in that: the sampling pipe (2) comprises two connecting plates (12) with the same specification, and the middle position of the two connecting plates (12) is Connected by two hinges (11). 4. The sediment collection device according to claim 1, characterized in that: the bottom end of the right shovel body (16) also has protruding teeth (19). 5. The sediment collection device according to claim 1, characterized in that: the inner side walls of the left shovel body (15) and the right shovel body (16) are provided with several anti-slip grooves (21).