CN105352760B - Argillaceous sediment columnar sampler - Google Patents

Abstract

The invention relates to a sampler, in particular to a muddy sediment columnar sampler. It includes inner shell rotating handle, outer shell rotating handle, outer shell rotating disc, outer shell upper cover, sampling inner shell, sampling outer shell, screw-in slider, pedal, cutting sleeve, drill bit, rotating disc pressing plate, positive cam block , inner shell compression shaft, positive pawl, double-layer ratchet, etc., the middle and lower part of the sampling inner shell is a semi-circular ring, the upper end is a small ring, and the top is a cylinder. The sampling shell is divided into inner and outer layers, and the middle part is a half ring The ring is closed at one end and open at the other end, with a sharp corner on the inner layer, small rings at the upper and lower ends, and threads on the outside of the middle. The invention can avoid sample compression and falling off during the sampling process, and protect the surface layer of the observed longitudinal section of the sample from being damaged, and can quickly observe and analyze the longitudinal section after sampling, and has the advantages of simple operation, low cost, labor saving, Easy to clean, easy to transport and so on.

Description

muddy sediment columnar sampler

technical field

The invention relates to a sampler, in particular to a muddy sediment columnar sampler.

Background technique

The muddy sediment columnar sampler is one of the important tools for studying sediments in rivers, lakes, reservoirs and shallow sea intertidal zones. By analyzing columnar sample sediments, the relevant sedimentary environment, sedimentary dynamics, and sediment composition can be obtained. Changes, sediment geochemical characteristics, ecosystem changes, sediment magnetic characteristics and other information. At present, there are many types of mud column samplers on the market, but the principle is basically the same. They all insert the cylindrical sampling tube into the sediment by pushing it by hand or by their own gravity. After the required sample is collected, the top of the sampling tube is sealed. , Take the sampler out of the sediment, the bottom of the sampling tube is not blocked, but rely on upward movement to generate a vacuum to keep the collected columnar sediment in the tube. Due to the complex structure, high price, and complicated operation process of the mud columnar samplers currently on the market, especially the shortcomings of part of the sampled sample falling off, serious sample compression effect, and damage to the surface layer of the longitudinal section of the sample, it is far from being able to meet the needs of scientific research. work needs.

Contents of the invention

The present invention aims to solve the problems mentioned in the background technology. The present invention provides an argillaceous columnar sampler that is easy to operate, cheap, prevents the sample from falling off, avoids compression effects and protects the longitudinal surface of the sample. The invention greatly improves the quality of the collected muddy columnar samples, and is beneficial to various scientific research and analysis of sediment columnar samples. The technical scheme adopted is as follows:

Mud sediment columnar sampler, including inner shell rotating handle, outer shell rotating handle, outer shell rotating disc, upper cover of outer shell, sampling inner shell, sampling outer shell, fixed pin, screw-in slider, pedal, cut-off sleeve, drill bit, Swivel disk Compression plate, positive cam block, water injection column, reverse cam block, compression shaft handle, inner housing compression shaft, positive mounting pin, torsion spring, positive pawl, double-layer ratchet, reverse Mounting pin, reverse pawl, reverse cam block, the sampling inner shell is made of aluminum alloy, the lower part is a semi-circular ring, the upper end is a small circular ring, and the top is a cylinder with multiple locking holes and a Slot to accommodate the rotating handle of the inner shell, and install the rotating handle of the inner shell with a mounting pin on the top. The sampling shell is made of aluminum alloy, which is divided into two layers, the middle part is a semi-circular ring, one end is closed, and the other end is closed. It is open, and has sharp corners on the inner layer. The upper and lower ends are small rings, and there are threads on the outside of the middle. Cut off the installation hole of the sleeve and install it in the annular space of the two layers of the sampling shell; when the sampler is working, rotate the grip of the compression shaft to drive the inner shell compression shaft to compress the sampling inner shell to be close to the inner layer of the sampling shell. When cleaning the sampler , rotate the grip of the compression shaft, thereby driving the rotation of the compression shaft of the inner shell, so that the compression state between the sampling inner shell and the inner layer of the sampling shell is released, and water is introduced into the annular gap of the sampling shell through the water injection column to clean the sampling shell Annulus clearance and sampling inner casing.

As a preference, the casing upper cover is installed on the upper part of the sampling casing through threaded connection, on which there are mounting holes for the water injection column and the pressing shaft of the inner casing, and the mounting sleeves for the rotating disk of the casing and the pressing disk of the rotating disk, and on its upper surface The double-layer ratchet is fixedly connected, and the water injection column is installed in the axial direction. The casing rotating disk is installed outside the installation sleeve in the middle of the upper cover of the casing, and the casing rotation handle is installed on the upper part with the installation pin, and the twisting handle is installed on the lower part with the positive installation pin. Spring and forward pawl, use the reverse installation pin to install the torsion spring and reverse pawl, the forward cam block and reverse cam block are installed on the lower plane of the rotating disk of the housing, and interact with the forward pawl and reverse pawl respectively Contact; when sampling, rotate the positive cam block so that the positive pawl interacts with the double-deck ratchet, and rotate the reverse cam block to disengage the reverse pawl from the double-deck ratchet, and to remove the sampler, rotate the positive cam block Disengaging the forward pawl from the double-deck ratchet and rotating the reverse cam block causes the reverse pawl to interact with the double-deck ratchet.

As preferably, the screw-in slide block is installed on the outside of the sampling shell by threaded connection, and the pedal is installed on both sides with a mounting pin. Plate, and hold the rotating handle of the outer shell to rotate forward, so as to drive the sampling inner shell and sampling outer shell to gradually enter the sampling soil layer. Drive the sampling inner shell and sampling outer shell etc. to be gradually taken out from the sampling soil layer.

As a preference, the drill bit is mounted on the lower part of the sampling shell by threaded connection, and a cut-off sleeve is installed inside it; when the sampling inner shell and the sampling outer shell reach a predetermined depth, take out the pin shaft between the sampling inner shell and the rotating disc pressing plate, and Rotate the handle according to the inner shell, thereby driving the sampling inner shell and the cutting sleeve to move down, and the cutting sleeve is guided by the inner curved surface of the drill bit, and the lower end shrinks, thereby cutting off the sampling soil layer in the drill bit.

The present invention has the following advantages: the handle and the pedal can be folded, so that it is convenient for transportation; the use of the pressing shaft and the sharp angle of the shell reduce the annular space where the sampled soil enters the shell; the screw-in slider and the double ratchet pawl mechanism The use of the sampler makes the operation of the sampler easy and labor-saving; the use of the cut-off sleeve prevents the sample from falling off; the middle part of the inner shell adopts a semi-circular structure, which is convenient for the observation and analysis of the longitudinal section.

Description of drawings

Fig. 1: overall structural diagram of the muddy sediment columnar sampler of the present invention,

Fig. 2: upper structural diagram of the muddy sediment columnar sampler of the present invention,

Fig. 3: upper sectional view of the muddy sediment columnar sampler of the present invention,

Fig. 4: the front view of the ratchet pawl in the muddy sediment columnar sampler of the present invention,

Fig. 5: Structural diagram of the ratchet pawl part in the muddy sediment columnar sampler of the present invention,

Fig. 6: Structural diagram of the precession part in the muddy sediment columnar sampler of the present invention,

Fig. 7: the sectional view of the middle part of the muddy sediment columnar sampler of the present invention,

Fig. 8: A cross-sectional view of the lower part of the muddy sediment columnar sampler of the present invention.

1. Inner shell rotating handle, 2. Outer shell rotating handle, 3. Outer shell rotating disc, 4. Outer cover, 5. Sampling inner shell, 6. Sampling shell, 7. Fixed pin, 8. Screw in slider, 9. Pedal, 10. Cut-off sleeve, 11. Drill bit, 12. Rotary disk pressing disc, 13. Forward cam block, 14. Water injection column, 15. Reverse cam block, 16. Compression shaft grip, 17. Inner shell pressing shaft, 18. Forward installation pin, 19. Torsion spring, 20. Forward pawl, 21. Double-layer ratchet, 22. Reverse installation pin, 23. Reverse pawl, 24. Reverse cam piece.

Detailed ways

Below in conjunction with accompanying drawing and example the present invention will be further described:

As shown in Figures 1 to 8, the muddy sediment column sampler of the present invention includes an inner shell rotating handle 1, an outer shell rotating handle 2, an outer shell rotating disk 3, an outer shell upper cover 4, a sampling inner shell 5, and a sampling outer shell. 6. Fixing pin 7, screw-in slide block 8, pedal 9, cut-off sleeve 10, drill bit 11, rotary disk pressing disc 12, forward cam block 13, water injection column 14, reverse cam block 15, pressing shaft handle 16. Inner shell compression shaft 17, forward mounting pin 18, torsion spring 19, forward pawl 20, double-layer ratchet 21, reverse mounting pin 22, reverse pawl 23, reverse cam block 24, where sampling The inner shell 5 is made of aluminum alloy, wherein the lower part is a semi-circular ring, the upper end is a small circular ring, and the top is a cylinder with a plurality of locking holes and grooves to accommodate the inner shell rotating handle 1, and on its top Use the installation pin to install the inner shell rotating handle 1. The sampling shell 6 is made of aluminum alloy, which is divided into two layers, the middle part is a semi-circular ring, one end is closed, the other end is open, and the inner layer has a sharp corner. The upper and lower ends are small circular rings, and there are threads on the outside of the middle. The upper cover 4 of the casing is installed on the upper part of the sampling casing 6 through threaded connection, and there are mounting holes for the water injection column 14 and the pressing shaft 17 of the inner casing and the casing The rotating disk 3 and the mounting sleeve of the rotating disk press the disk 12, and the double-layer ratchet 21 is fixed on its upper surface, and the water injection column 14 is installed in the axial direction. The casing rotating disk 3 is installed outside the mounting sleeve in the middle of the casing upper cover 4 And utilize mounting pin to install shell rotating handle 2 at its top, utilize forward mounting pin 18 to install torsion spring 19 and forward pawl 20 at its bottom, utilize reverse mounting pin 22 to install torsion spring 19 and reverse pawl 23, The forward cam block 13 and the reverse cam block 15 are installed on the lower plane of the casing rotating disk 3, and are in contact with the forward pawl 20 and the reverse pawl 23 respectively, and the screw-in slider 8 is installed on the sampling casing 6 by screw connection. The pedal 9 is installed on the outside, and the pedal 9 is installed on its two sides with mounting pins. The upper surface of the pedal 9 has a mounting hole, and is fixed with the ground through the fixing pin 7. The drill bit 11 is installed on the lower part of the sampling shell 6 by threaded connection, and on the inside Install the cut-off sleeve 10, the upper part of the inner casing pressing shaft 17 is fixedly connected with the pressing shaft handle 16, and it is installed in the annular space of the two layers of the sampling casing 6 through the mounting holes of the casing upper cover 4, the sampling casing 6 and the cutting sleeve 10 .

Before using the present invention, first rotate the handle 1 of the inner shell so that the sampling inner shell 5 and the semicircular ring in the middle of the sampling shell 6 form a closed space, and insert the cylinder at the upper end of the sampling inner shell 5 and the rotary disc pressing plate through the pin shaft 12 locking holes, so that the relative position between the sampling inner shell 5 and the sampling outer shell 6 is fixed, and the pressing shaft handle 16 is rotated to drive the inner shell pressing shaft 17 to compress the sampling inner shell 5 to be close to the inner layer of the sampling shell 6 Afterwards, the sampler is placed above the sampling point, the pedal 9 is unfolded, and the screw-in slide block 8 is fixedly connected with the earth through the fixed pin 7, and the positive cam block 13 is rotated to make the positive pawl 20 and the double-layer ratchet 21 Interact and rotate the reverse cam block 15 so that the reverse pawl 23 is out of contact with the double-layer ratchet 21, then step on the pedal 9, and hold the outer shell rotation handle 2 to rotate forward, thereby driving the sampling inner shell 5 and the sampling The outer casing 6 and the like gradually enter the sampling soil layer. When the sampling inner casing 5 and the sampling outer casing 6 reach a predetermined depth, take out the pin shaft between the sampling inner casing 5 and the rotating disk pressing disk 12, and press the inner casing rotation handle 1 , thereby driving the sampling inner shell 5 and the cutting sleeve 10 to move down, the cutting sleeve 10 is guided by the inner curved surface of the drill bit 11, and the lower end shrinks, thereby cutting off the sampling soil layer in the drill bit 11, and inserting the sampling inner shell 5 through the pin shaft again at this time The upper cylinder and the rotating disc press the locking hole of the disc 12, so that the relative position between the sampling inner shell 5 and the sampling outer shell 6 is fixed; When the resistance of the soil layer is small, the sampler can be taken out directly. When the weight of the sample is large or the resistance of the soil layer to the sampler is large, the positive cam block 13 is rotated so that the positive pawl 20 is out of contact with the double-layer ratchet wheel 21. And rotate the reverse cam block 15 so that the reverse pawl 23 interacts with the double-layer ratchet 21, then step on the pedal 9, and hold the outer shell rotation handle 2 to rotate in reverse, thereby driving the sampling inner shell 5 and the sampling shell 6, etc. Gradually take it out from the sampling soil layer, and then take out the pin shaft between the sampling inner shell 5 and the rotary disc compaction plate 12, hold the inner shell rotating handle 1 and lift it up, and rotate the inner shell rotating handle 1 so that the sampling inner shell The shell 5 enters the annular space of the sampling shell 6, at this time, the profile of the sampled soil layer can be photographed and analyzed, and after the cutting sleeve 10 and the drill bit 11 are removed, the sampled soil layer can be put into the sampling cylinder as a whole, so that the follow-up Detailed analysis; after the sampler is used, rinse the inside and outside of the sampler with clean water, and rotate the compression shaft handle 16, thereby driving the inner shell compression shaft 17 to rotate, so that the sampling inner shell 5 and the sampling shell 6 are laminated The tight state is released, and clear water is introduced into the annular space of the sampling shell 6 through the water injection column 14 to clean the annular space of the sampling shell 6 and the sampling inner shell 5 .

Claims (1)

1. The muddy sediment columnar sampler is characterized in that: comprising inner shell rotating handle (1), outer shell rotating handle (2), outer shell rotating disk (3), outer shell loam cake (4), sampling inner shell ( 5), sampling shell (6), fixed pin (7), screw-in slider (8), pedal (9), cut-off sleeve (10), drill bit (11), rotary disc pressing disc (12), positive Cam block (13), water injection column (14), reverse cam block (15), compression shaft handle (16), inner shell compression shaft (17), forward mounting pin (18), torsion spring (19 ), positive pawl (20), double-layer ratchet (21), reverse installation pin (22), reverse pawl (23), reverse cam block (24), wherein the sampling inner shell (5) is made of aluminum Made of alloy, the lower part is a semi-circular ring, the upper end is a small circular ring, and the top is a cylinder with multiple locking holes and grooves to accommodate the inner shell rotating handle (1), and a mounting pin is used on its top Install the rotating handle (1) of the inner shell. The sampling shell (6) is made of aluminum alloy. , the upper and lower ends are small rings, and there are threads on the outside of the middle part, the upper part of the inner housing pressing shaft (17) is fixedly connected with the pressing shaft handle (16), and passes through the upper cover of the housing (4), the sampling housing (6 ) and the mounting holes of the cut-off sleeve (10) to install it in the two-layer annular space of the sampling shell (6), the shell loamer (4) is installed on the upper part of the sampling shell (6) through threaded connection, and there is a water injection column on it (14) and the mounting hole of the inner shell pressing shaft (17) and the mounting sleeve of the outer shell rotating disc (3) and the rotating disc pressing disc (12), and the double-layer ratchet (21) is fixedly connected on its upper surface, along the The water injection column (14) is axially installed, and the casing rotating disk (3) is installed on the outside of the installation sleeve in the middle part of the casing upper cover (4), and the casing rotating handle (2) is installed on its upper part with a mounting pin, and the positive Install the torsion spring (19) and forward pawl (20) to the installation pin (18), install the torsion spring (19) and the reverse pawl (23) with the reverse installation pin (22), and the forward cam block (13) and the reverse cam block (15) are installed on the lower plane of the casing rotating disc (3), and are in contact with the forward pawl (20) and the reverse pawl (23) respectively, and the screwed slide block (8) is connected by thread It is installed on the outside of the sampling shell (6), and the pedal (9) is installed on both sides using the mounting pin. The upper surface of the pedal (9) has a mounting hole, and is connected to the ground through the fixing pin (7). The drill bit (11 ) is installed on the lower part of the sampling housing (6) by threaded connection, and a cut-off sleeve (10) is installed inside it.