CN111855297B

CN111855297B - A silt sampling device for water conservancy investigation

Info

Publication number: CN111855297B
Application number: CN202010815787.2A
Authority: CN
Inventors: 陈海志; 何华俊; 王如城; 袁殷; 余娅娅
Original assignee: Guangdong Zhengfangyuan Engineering Consulting Co ltd
Current assignee: Guangdong Zhengfangyuan Engineering Consulting Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2023-05-09
Anticipated expiration: 2040-08-14
Also published as: CN111855297A

Abstract

The application relates to a silt sampling device for water conservancy investigation relates to the technical field of water conservancy investigation, and it includes the sampling tube, and the sampling tube has sampling end and control end, and the slip is provided with first piston in the sampling tube, is provided with connecting rod and control lever on the first piston, and the control lever wears out from the control end of sampling tube, installs the second piston on the connecting rod, and the second piston is located one side that the control end was kept away from to first piston, and the second piston imbeds or breaks away from the sampling tube, is formed with the sample space between first piston and the second piston. The sampling tube inserts in the silt, pulls the control rod in order to drive first piston and remove towards the direction that is close to the control end, and first piston extraction silt gets into the sampling tube this moment in, until the second piston removes and imbeds in the sampling tube so that the sampling tube opening seals to make the silt composition that this application took out constitute more accurately in order to improve the accuracy of follow-up detection.

Description

A silt sampling device for water conservancy investigation

Technical Field

The application relates to the technical field of water-borne surveys, in particular to a silt sampling device for water-borne surveys.

Background

Water transport is a transport means for transporting passenger and cargo using vessels. In inland and coasts, water transport is also often used as a small transport vehicle, serving the task of supplementing and engaging mass trunk transport. In order to ensure the normal operation of the ship in the river channel, the river channel needs to be surveyed under the conditions of topography, silt constitution, water flow speed and the like of the river channel before the water transport is started, so that the river channel is remediated to ensure that the river channel can be suitable for the water transport. And the sludge at the bottom of the survey river channel is formed, so that the sludge in the river channel needs to be sampled.

The utility model with reference to the authorized publication number CN207263470U discloses a river sludge sampling device, which comprises a sampling bin, a sampling scale, a baffle seat and a bin opening push rod; the upper end of the sampling bin is fixedly connected with a sampling handle, the lower end of the sampling bin is hinged with a bin door capable of opening and closing the lower end opening of the sampling bin, and the bin door is in a closed state under the condition that no external force exists on the bin door through a contraction mechanism; the lower end of the opening bin push rod stretches into the sampling bin, passes through the baffle seat and abuts against the bin door, and the upper end of the opening bin push rod is fixedly connected with an opening bin handle. When sampling, the bin gate is stressed to be opened, the sampling bin is pressed down through the sampling handle, the river mud is pressed into the sampling bin, when the sampling bin finishes mud sampling at the bottom of a river channel, the bin opening handle is held to lift the bin opening push rod, the spring is contracted to pull the bin gate to close the opening at the lower end of the sampling bin, and then the device is lifted up.

With respect to the related art in the above, the inventors consider that there are the following drawbacks: in the actual sampling process, river water always enters the sampling bin firstly and is pressed into the sludge, so that the water content of the sludge taken out by the sampling device is larger than the actual water content, and the accuracy of subsequent detection is affected.

Disclosure of Invention

In order to improve the accuracy of a subsequent detection link, the purpose of the application is to provide a silt sampling device for water transport investigation.

The application provides a silt sampling device for water conservancy investigation adopts following technical scheme:

the utility model provides a silt sampling device for water conservancy project, includes the sampling tube, the sampling tube has sampling end and control end, sliding in the sampling tube is provided with first piston, be provided with connecting rod and control lever on the first piston, the control lever is followed the control end of sampling tube wears out, install the second piston on the connecting rod, the second piston is located first piston is kept away from one side of control end, the second piston embedding or break away from the sampling tube, be formed with the sample space between first piston and the second piston.

Through adopting above-mentioned technical scheme, the sampling tube inserts in the silt, then pulls the control lever in order to drive first piston and remove towards the direction that is close to the control end, and first piston extraction silt gets into the sampling tube this moment, until the second piston removes and imbeds in the sampling tube so that the sampling tube opening seals, from this, when beginning the extraction silt, there is not extra river in the sampling tube, after the sample, the sampling end that the second piston sealed the sampling tube is in order to reduce the sampling tube after breaking away from the silt by the infiltration of river get into the sampling tube, thereby make the silt composition constitution that this silt sampling device took more accurate in order to improve the accuracy of follow-up detection.

Preferably, the control rod is located at one side of the second piston away from the sampling end, a threaded through hole is formed in the control rod along the axis of the control rod in a penetrating mode, the connecting rod penetrates through the first piston to be in threaded connection with the threaded through hole, and the end portion of the connecting rod penetrates out of the threaded through hole.

Through adopting above-mentioned technical scheme, the connecting rod rotates in the screw through-hole in order to drive the second piston and be close to or keep away from along the axis direction of control rod to adjust the distance between first piston and the second piston in order to adjust the size of sampling space, from this, make this silt sampling device can quantitative acquisition silt.

Preferably, one end of the control rod, which is far away from the sampling end, is provided with a limiting outer edge, and the limiting outer edge is in contact with or separated from the end face of the control end of the sampling tube.

Through adopting above-mentioned technical scheme, spacing outer edge contradicts with the sampling tube control end terminal surface in order to restrict the control lever and slide completely and enter into the sampling tube, avoids first piston to break away from the sampling tube sampling end to guarantee the stability in use of this silt sampling device.

Preferably, the second piston has a columnar portion and a mesa portion, the mesa portion is located on a side of the columnar portion away from the control end, the mesa portion has a large end and a small end, and the small end of the mesa portion is away from the columnar portion relative to the large end of the mesa portion.

Through adopting above-mentioned technical scheme, the column portion is kept away from to the tip of mesa form portion so that the one end that first piston was kept away from to the second piston is relatively sharp-pointed to reduce this silt sampling device and put into the resistance of river silt in-process, so that this silt sampling device's use.

Preferably, the columnar part is far away from one end of the table-shaped part, an embedded groove is formed in the embedded groove, a balancing weight and an embedded block are arranged in the embedded groove, the embedded block is located on one side, far away from the table-shaped part, of the balancing weight, a cover body is connected to the opening of the embedded groove in a threaded mode, and the connecting rod penetrates through the cover body to be fixedly connected with the embedded block.

Through adopting above-mentioned technical scheme, the connecting rod passes the lid in order to be connected with the abaculus so that the connection between connecting rod and the second piston, and the balancing weight further increases the weight of second piston to in the silt of being convenient for second piston embedding, from this, make this silt sampling device use portably.

Preferably, a connecting screw table is arranged on the end face of the control end of the sampling tube, an extension sleeve is connected to the connecting screw table in a threaded manner, and a pulling assembly for pulling the control rod is arranged at one end, far away from the sampling tube, of the extension sleeve.

Through adopting above-mentioned technical scheme, the extension sleeve prolongs this silt sampling apparatus's overall length so that this silt sampling apparatus can use in the place that the depth of water is deeper, and pulling subassembly makes the assurance control rod can control first piston and upwards slide to make this silt sampling apparatus's application range wider.

Preferably, the pulling assembly comprises a mounting table arranged on the extension sleeve, a rotating rod arranged on the mounting table in a rotating mode, a wire spool coaxially and fixedly arranged on the rotating rod, and a pull rope with one end wound on the wire spool, wherein the other end of the pull rope is detachably arranged on the control rod.

Through adopting above-mentioned technical scheme, rotate the bull stick so that wire reel rolling stay cord to make stay cord tip drive control lever upwards slide, from this, make this silt sampling device drive the gliding easy and simple to handle of control lever after the whole length of extension.

Preferably, a rotating hole is formed in one side, far away from the extension sleeve, of the mounting table, the rotating hole is rotationally connected with the rotating rod, a dismounting groove is formed in the inner wall of the rotating hole, and the groove width of the dismounting groove is smaller than the diameter of the rotating hole.

Through adopting above-mentioned technical scheme, the bull stick can be installed or break away from between dismouting groove and the commentaries on classics hole to the dismouting of this pulling subassembly of being convenient for.

Preferably, the extension sleeve comprises at least two pipe sections spliced along the axis direction, a connecting groove is formed in one end, close to the sampling pipe, of the pipe section, a splicing screw table is arranged at one end, far away from the sampling pipe, of the pipe section closest to the sampling pipe, the connecting groove of the pipe section closest to the sampling pipe is in threaded connection with the splicing screw table, and between two adjacent pipe sections, the connecting groove of the pipe section close to the sampling pipe is in threaded connection with the splicing screw table of the pipe section far away from the sampling pipe.

Through adopting above-mentioned technical scheme, realize connecting through spread groove and concatenation spiral shell table connection between two adjacent pipeline sections to make extension sheathed tube length can adjust according to actual need, so that this silt sampling device samples silt in the position of different degree of depth.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the sampling tube is inserted into the sludge, and then the control rod is pulled to drive the first piston to move towards the direction close to the control end, at the moment, the first piston extracts the sludge into the sampling tube until the second piston moves to be embedded into the sampling tube to enable the opening of the sampling tube to be closed, so that when the sludge is extracted, no extra river water exists in the sampling tube, after the sampling is finished, the second piston seals the sampling end of the sampling tube to reduce the condition that the sampling tube is permeated into the sampling tube by the river water after the sludge is separated from the sampling tube, and therefore the sludge components extracted by the sludge sampling device form more accurately to improve the accuracy of subsequent detection;

2. the connecting rod rotates in the threaded through hole to drive the second piston to approach or separate along the axial direction of the control rod, so that the distance between the first piston and the second piston is adjusted to adjust the size of the sampling space, and the sludge sampling device can quantitatively acquire sludge;

3. the extension sleeve extends the overall length of the sludge sampling device so that the sludge sampling device can be used in places with deeper water depths, and the pull assembly enables the control rod to control the first piston to slide upwards, so that the sludge sampling device is wider in application range.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present application;

fig. 2 is a schematic cross-sectional view of an embodiment of the present application.

In the figure, 1, a sampling tube; 11. a sampling end; 12. a control end; 13. connecting a screw table; 2. a first piston; 3. a connecting rod; 31. an insert; 4. a control lever; 41. a threaded through hole; 42. limiting the outer edge; 5. a second piston; 51. a columnar portion; 511. a caulking groove; 52. a mesa portion; 53. a cover body; 6. sampling space; 7. balancing weight; 8. extending the sleeve; 81. a pipe section; 82. a connecting groove; 83. splicing screw tables; 9. pulling the assembly; 91. a mounting table; 911. a turning hole; 912. a disassembly and assembly groove; 92. a rotating rod; 93. a wire spool; 94. and (5) pulling the rope.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-2.

The embodiment of the application discloses a silt sampling device for water-borne investigation.

Referring to fig. 1 and 2, a sludge sampling device for water exploration includes a sampling tube 1, the sampling tube 1 being arranged like a circular tube. The sampling tube 1 has a sampling end 11 and a control end 12, and the sampling end 11 and the control end 12 are located at both ends of the sampling tube 1 in the axial direction, respectively.

The sampling tube 1 is internally provided with a first piston 2 in a sliding manner along the axial direction of the sampling tube, the first piston 2 is in a cylindrical-like arrangement, the axial line of the first piston 2 coincides with the axial line of the sampling tube 1, the outer circular surface of the first piston 2 is kept sealed with the inner wall of the sampling tube 1, and the first piston 2 is always positioned in the sampling tube 1.

The first piston 2 is provided with a connecting rod 3 and a control rod 4, the axis of the connecting rod 3 coincides with the axis of the sampling tube 1, and the axis of the control rod 4 coincides with the axis of the connecting rod 3. The control rod 4 is located one side of the first piston 2 far away from the sampling end 11 and fixedly connected with the first piston 2, the control rod 4 penetrates out of the control end 12 of the sampling tube 1, and the first piston 2 can be driven to slide in the sampling tube 1 by pulling the control rod 4. The control rod 4 is provided with a limiting outer edge 42 at one end far away from the sampling end 11, and the limiting outer edge 42 is in contact with or separated from the end face of the control end 12 of the sampling tube 1, so that the control rod 4 is limited to completely slide into the sampling tube 1. The control rod 4 is provided with a threaded through hole 41 along the axis thereof, the connecting rod 3 passes through the first piston 2 to be in threaded connection with the threaded through hole 41, and the end part of the connecting rod 3 passes out of the threaded through hole 41 so that the length of the connecting rod 3 is longer than that of the control rod 4. The length of the connecting rod 3 is longer than that of the sampling tube 1, so that both ends of the connecting rod 3 are positioned outside the sampling tube 1.

The second piston 5 is mounted on the end of the connecting rod 3 penetrating out of the sampling end 11 of the sampling tube 1, i.e. the second piston 5 is located on the side of the first piston 2 remote from the control end 12. A sampling space 6 is formed between the first piston 2 and the second piston 5, and the second piston 5 is inserted into or separated from the sampling tube 1, so that sludge in the sampling space 6 is placed into the sampling tube 1 or separated from the sampling tube 1. Specifically, the second piston 5 has a columnar portion 51 and a mesa portion 52. The axis of the columnar portion 51 coincides with the axis of the link 3, and when the columnar portion 51 is fitted into the sampling tube 1, the outer circumferential surface of the columnar portion 51 seals against the inner wall of the sampling tube 1. The axis of the mesa portion 52 coincides with the axis of the columnar portion 51. The mesa portion 52 is located on a side of the columnar portion 51 away from the control end 12, the mesa portion 52 has a large end and a small end, the large end of the mesa portion 52 is fixedly connected with the columnar portion 51, and the small end of the mesa portion 52 is away from the columnar portion 51 relative to the large end of the mesa portion 52. In order to facilitate the connection between the connecting rod 3 and the sampling tube 1, an embedding groove 511 is formed in the end face of the columnar portion 51, which is far away from one end of the table-shaped portion 52, a cover 53 is connected to the opening of the embedding groove 511 in a threaded manner, an embedded block 31 is arranged in the embedding groove 511, and the connecting rod 3 passes through the cover 53 to be fixedly connected with the embedded block 31. It should be noted that the caulking groove 511 is further provided therein with a weight 7, and the weight 7 is located at a side of the caulking piece 31 near the table-shaped portion 52.

With continued reference to fig. 1 and 2, in order to expand the sludge sampling depth, a connection screw 13 is provided on the end surface of the control end 12 of the sampling tube 1, and an extension sleeve 8 is screwed on the connection screw 13. The extension sleeve 8 is arranged like a circular tube, and the axis of the extension sleeve 8 coincides with the axis of the sampling tube 1. The inner diameter of the extension sleeve 8 is larger than the width of the limit outer edge 42 of the control rod 4. Specifically, the extension sleeve 8 includes at least two pipe sections 81 spliced in the axial direction, and all the pipe sections 81 are identical in shape and size. The connecting groove 82 has been seted up to the one end that the pipeline section 81 is close to sampling tube 1, and the one end that the pipeline section 81 is kept away from sampling tube 1 is provided with concatenation screw table 83, and the connecting groove 82 of pipeline section 81 that is closest to sampling tube 1 is connected with the connection screw table 13 screw thread. Between two adjacent pipe sections 81, a connecting groove 82 of the pipe section 81 close to the sampling pipe 1 is in threaded connection with a splicing screw table 83 of the pipe section 81 far away from the sampling pipe 1.

To control the sliding of the control rod 4 at the end of the extension sleeve 8 remote from the sampling tube 1, a pulling assembly 9 for pulling the control rod 4 is mounted at the end of the extension sleeve 8 remote from the sampling tube 1. Specifically, the pulling assembly 9 includes a mounting table 91 provided on the extension sleeve 8, a rotary rod 92 rotatably provided on the mounting table 91, a spool 93 coaxially fixedly provided on the rotary rod 92, and a pull cord 94 having one end wound around the spool 93, and the other end of the pull cord 94 is detachably provided on the control lever 4. The mount 91 is provided like a circular tube such that the axis of the mount 91 coincides with the axis of the extension sleeve 8. A rotation hole 911 is formed in one side of the mounting table 91 away from the extension sleeve 8, the rotation hole 911 penetrates through the side wall of the mounting table 91, and the axis of the rotation hole 911 is perpendicular to the axis of the extension sleeve 8. The rotary rod 92 is rotatably connected with the rotary hole 911. In order to facilitate the disassembly and assembly of the rotary rod 92, a disassembly and assembly groove 912 is formed in the inner wall of the rotary hole 911 on the side far away from the extension sleeve 8, and the groove width of the disassembly and assembly groove 912 is smaller than the diameter of the rotary hole 911.

The implementation principle of the silt sampling device for water transport investigation is as follows:

(1) When sludge sampling is carried out in a shallower area of a river channel, the control rod 4 is firstly moved downwards to enable the limiting outer edge 42 to be in contact with the end face of the control end 12 of the sampling tube 1, at the moment, one face of the first piston 2 away from the control end 12 is flush with the end face of the sampling end 11 of the sampling tube 1, which is positioned outside the sampling tube 1, the connecting rod 3 is rotated to adjust the distance between the first piston 2 and the second piston 5, then the sampling tube 1 is embedded into the sludge, and the control rod 4 is pulled upwards to drive the first piston 2 and the second piston 5 to slide upwards until the second piston 5 is embedded into the sampling tube 1, and then the sampling is completed;

(2) When the silt is sampled in a deeper area of a river channel, the control rod 4 is firstly moved downwards to enable the limiting outer edge 42 to be in contact with the end face of the control end 12 of the sampling tube 1, at the moment, one face of the first piston 2 away from the control end 12 is flush with the end face of the sampling end 11 of the sampling tube 1, which is located outside the sampling tube 1, the connecting rod 3 is rotated to adjust the distance between the first piston 2 and the second piston 5, then the pulling assembly 9 is arranged on the extension sleeve 8, the end part of the pulling rope 94 is arranged on the limiting outer edge 42 of the control rod 4, then the extension sleeve 8 is arranged on the control end 12 of the sampling tube 1, then the sampling tube 1 is embedded into silt, the rotating rod 92 is rotated to enable the wire spool 93 to roll the pulling rope 94, and accordingly the upward movement is pulled and controlled to drive the first piston 2 and the second piston 5 to slide upwards until the second piston 5 is embedded into the sampling tube 1 to complete the sampling.

The embodiments of this embodiment are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, in which like parts are denoted by like reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component. Therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A silt sampling device for water transport investigation, includes sampling tube (1), sampling tube (1) have sampling end (11) and control end (12), its characterized in that: the sampling tube (1) is slidably provided with a first piston (2), the first piston (2) is provided with a connecting rod (3) and a control rod (4), the control rod (4) penetrates out of a control end (12) of the sampling tube (1), a second piston (5) is arranged on the connecting rod (3), the second piston (5) is positioned on one side, far away from the control end (12), of the first piston (2), the second piston (5) is embedded into or separated from the sampling tube (1), and a sampling space (6) is formed between the first piston (2) and the second piston (5);

one end of the control rod (4) far away from the sampling end (11) is provided with a limiting outer edge (42), and the limiting outer edge (42) is in contact with or separated from the end face of the control end (12) of the sampling tube (1);

before sampling, the control rod (4) is downwards moved so that the limit outer edge (42) is abutted against the end face of the control end (12) of the sampling tube (1), at the moment, one face, away from the control end (12), of the first piston (2) is flush with the end face of the sampling end (11) of the sampling tube (1), and the second piston (5) is located outside the sampling tube (1); the sampling tube (1) is inserted into the sludge, the control rod (4) drives the first piston (2) to move towards the direction close to the control end, the first piston (2) draws the sludge into the sampling tube (1) until the second piston (5) is moved to be embedded into the sampling tube (1) so as to enable the opening of the sampling tube (1) to be closed, and the second piston (5) closes the sampling end of the sampling tube (1) so as to reduce the penetration of river water into the sampling tube (1) after the sampling tube (1) is separated from the sludge;

the second piston (5) is provided with a columnar part (51) and a table-shaped part (52), the table-shaped part (52) is positioned on one side of the columnar part (51) away from the control end (12), the table-shaped part (52) is provided with a large end and a small end, and the small end of the table-shaped part (52) is away from the columnar part (51) relative to the large end of the table-shaped part (52).

2. A silt sampling apparatus for a marine survey according to claim 1, wherein: the control rod (4) is located on one side, far away from the sampling end (11), of the second piston (5), a threaded through hole (41) is formed in the control rod (4) in a penetrating mode along the axis of the control rod, the connecting rod (3) penetrates through the first piston (2) to be in threaded connection with the threaded through hole (41), and the end portion of the connecting rod (3) penetrates out of the threaded through hole (41).

3. A silt sampling apparatus for a marine survey according to claim 2, wherein: the utility model discloses a connecting rod, including column portion (51), platform form portion (52), caulking groove (511) have been seted up to one end of keeping away from, be provided with balancing weight (7) and slug (31) in caulking groove (511), slug (31) are located balancing weight (7) are kept away from one side of platform form portion (52), threaded connection has lid (53) on the opening of caulking groove (511), connecting rod (3) pass lid (53) with slug (31) fixed connection.

4. A silt sampling apparatus for a marine survey according to claim 1, wherein: the end face of the control end (12) of the sampling tube (1) is provided with a connecting screw table (13), an extension sleeve (8) is connected to the connecting screw table (13) in a threaded mode, and a pulling assembly (9) for pulling the control rod (4) is installed at one end, far away from the sampling tube (1), of the extension sleeve (8).

5. A silt sampling apparatus for a marine survey according to claim 4 wherein: the pulling assembly (9) comprises a mounting table (91) arranged on the extension sleeve (8), a rotating rod (92) arranged on the mounting table (91) in a rotating mode, a wire spool (93) arranged on the rotating rod (92) in a coaxial fixed mode and a pull rope (94) with one end wound on the wire spool (93), and the other end of the pull rope (94) is detachably arranged on the control rod (4).

6. A silt sampling apparatus for a marine survey according to claim 5 wherein: the mounting table (91) is far away from one side of the extension sleeve (8) and is provided with a rotary hole (911), the rotary hole (911) is rotationally connected with the rotary rod (92), the inner wall of the rotary hole (911) is provided with a disassembly and assembly groove (912), and the groove width of the disassembly and assembly groove (912) is smaller than the diameter of the rotary hole (911).

7. A silt sampling apparatus for a marine survey according to claim 4 wherein: extension sleeve (8) include at least two pipeline sections (81) of following the axis direction concatenation, pipeline section (81) are close to spread groove (82) have been seted up to the one end of sampling tube (1), pipeline section (81) are kept away from the one end of sampling tube (1) is provided with concatenation screw table (83), and is closest to spread groove (82) and connection screw table (13) threaded connection of pipeline section (81) of sampling tube (1), between two adjacent pipeline sections (81), be close to spread groove (82) of pipeline section (81) of sampling tube (1) with be kept away from concatenation screw table (83) threaded connection of pipeline section (81) of sampling tube (1).