CN109632377B - Lake bottom sludge sampler and collection method thereof - Google Patents
Lake bottom sludge sampler and collection method thereof Download PDFInfo
- Publication number
- CN109632377B CN109632377B CN201811557749.0A CN201811557749A CN109632377B CN 109632377 B CN109632377 B CN 109632377B CN 201811557749 A CN201811557749 A CN 201811557749A CN 109632377 B CN109632377 B CN 109632377B
- Authority
- CN
- China
- Prior art keywords
- cylinder
- air bag
- ejector
- sludge
- sampling cup
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1031—Sampling from special places
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a lake bottom sludge sampler which comprises a vertical sludge collection cylinder below the surface of a lake, wherein the sludge collection cylinder is of a vertically-through cylinder structure, and the inner wall of the sludge collection cylinder is a smooth inner wall; the outer wall of the sludge collection cylinder is integrally provided with an annular columnar air bag box body coaxially, an air bag containing annular cavity is coaxially arranged inside the air bag box body, and a plurality of upper air leakage holes are uniformly distributed and hollowed in the upper wall of the annular cavity of the air bag containing annular cavity; the invention has simple structure, adopts the gas distribution device to extract or inject gas into the air bag cavity through the gas supply pipe, and further can expand or contract the elastic air bag; the expansion and contraction of the elastic air bag can enable the sludge collecting cylinder to do sinking and floating motions, so that the lake bottom sampling is carried out in a simulated diving process, and the situation of manual diving is avoided.
Description
Technical Field
The invention belongs to the field of lake bottom sampling.
Background
The traditional lake bottom sludge sampling can be directly carried out only in shallow areas, and the deep areas are often required to be manually submerged, so that the deep lake sludge sampling work is very dangerous.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides a lake bottom sludge sampler and a collection method thereof.
The technical scheme is as follows: in order to achieve the purpose, the lake bottom sludge sampler comprises a vertical sludge collection cylinder below the surface of a lake, wherein the sludge collection cylinder is of a vertically-through cylinder structure, and the inner wall of the sludge collection cylinder is a smooth inner wall;
the sludge collecting device comprises a sludge collecting cylinder, an air bag box body, an air bag accommodating ring cavity, a plurality of upper air leakage holes, a plurality of lower air leakage holes, an annular elastic air bag, an air bag cavity and an air bag cavity, wherein the outer wall of the sludge collecting cylinder is integrally provided with the annular air bag box body coaxially, the air bag accommodating ring cavity is coaxially arranged inside the air bag box body, the upper wall of the ring cavity of the air bag accommodating ring cavity is uniformly and hollowly provided with the plurality of upper air leakage holes, the lower wall of the ring cavity of the air bag accommodating ring cavity is uniformly and hollowly provided with the plurality of lower air leakage holes, the air bag accommodating ring cavity is communicated; the upper end of the air supply pipe is communicated and connected with an air distribution device on the lake surface, and the lower end of the flexible air supply pipe is communicated with an air bag cavity in the elastic air bag; the gas distribution device can draw or inject gas into the air bag cavity through the gas supply pipe, so that the elastic air bag can be expanded or contracted; the expansion and contraction of the elastic air bag can enable the sludge collection cylinder to do sinking and floating motions.
Furthermore, a circle of disc-shaped falling disc is arranged on the outer wall of the lower end of the sludge collection cylinder, a plurality of vertical liquid guide pipes are distributed on the edge of the outline of the upper side of the falling disc in a circumferential array manner, and the upper end of each liquid guide pipe is communicated with the outside; a plurality of liquid discharge ports are distributed at the lower end of the inner wall of the sludge collection cylinder in a circumferential array; a plurality of liquid guide channels are distributed in the falling plate in a circumferential array manner, and the liquid guide channels respectively communicate the liquid guide pipes with the liquid discharge ports; the upper side of the falling plate is also integrally provided with an annular metal counterweight coaxially.
Further, a lake bottom sludge sampler according to the claim, characterized in that: the sludge collecting device comprises a sludge collecting cylinder, an upper piston, a lower piston and four linkage rods, wherein the upper piston and the lower piston are arranged in the cylinder of the sludge collecting cylinder at intervals, are respectively in close fit sliding fit with the inner wall of the cylinder of the sludge collecting cylinder, a pull handle is arranged at the upper end of the upper piston, the sludge collecting device also comprises the four linkage rods which are parallel along the axial direction of the sludge collecting cylinder, two ends of each linkage rod are respectively fixedly connected with the upper piston and the lower piston, and the four linkage rods are distributed on the contour edges of the upper piston and the lower piston in a circumferential array; a cylinder is coaxially arranged between the upper piston and the lower piston, and the tail end of a push rod at the lower end of the cylinder is fixedly connected with the lower piston; the upper end of the cylinder is fixedly connected with the cylinder enclasping device through a plurality of support columns; the cylinder enclasping device is positioned between the upper piston and the cylinder; the cylinder holding device can hold or release the inner wall of the sludge collection cylinder; the cylinder enclasping device and the cylinder are movably clamped in a range enclosed by the four linkage rods.
Further, the lower end of the lower piston is coaxially connected with a connecting rod, the lower end of the connecting rod is coaxially and fixedly connected with a gyroscope-shaped sampling cup, and the tip end of the sampling cup is coaxially arranged downwards; a circle of sealing ring is fixedly arranged on the circumferential outer wall of the sampling cup, and the sealing ring is in close fit and sliding fit with the inner wall of the sludge collection cylinder; the upper side of the sampling cup is concavely provided with a sampling cup cavity.
Further, the cylinder enclasping device comprises a rectangular shell; the lower end of the rectangular shell is fixedly connected with the upper end of the air cylinder through a plurality of support columns; an ejector with a cone structure is arranged in the inner cavity of the rectangular shell, the ejector and the sludge collection cylinder are coaxially arranged, the upper end of the ejector is a cone thick end, and the lower end of the ejector is a cone tip end; a threaded through hole is formed in the lower wall body of the inner cavity of the rectangular shell and is coaxially arranged with the ejector, a transmission rod through hole is formed in the upper wall body of the inner cavity of the rectangular shell and is coaxially arranged with the ejector; the tip of the ejector is coaxially and integrally connected with a threaded rod, and the threaded rod is in threaded fit connection with the threaded through hole; a transmission rod inserting channel is coaxially arranged inside the ejector, the shaft section of the transmission rod inserting channel is in a regular polygon shape, and the transmission rod inserting channel penetrates out of the thick end of the ejector; the rectangular shell is also provided with a motor bracket, a transmission motor is arranged in the motor bracket, and the rotating output end of the transmission motor is coaxially connected with a transmission rod with a shaft section in a regular polygon shape; the tail end of the transmission rod penetrates through the transmission rod penetrating hole, and the tail end of the transmission rod is inserted into the transmission rod inserting channel in a sliding mode; the rectangular shell is characterized in that the peripheral wall body of the rectangular shell is respectively provided with a hollow-out holding piece guide post penetrating through holes, the rectangular shell further comprises a plurality of holding piece guide posts, each holding piece guide post respectively movably penetrates through each holding piece guide post penetrating through hole, the axis of each holding piece guide post is perpendicular to the axis of the ejector, one end of each holding piece guide post close to the ejector is uniformly provided with a ball head, and the surface of each ball head is contacted with the conical surface of the ejector; one end, far away from the ejector, of each tightly-holding sheet guide post is connected with a tightly-holding arc surface sheet uniformly, and the bending radian of each tightly-holding arc surface sheet is consistent with the radian of the inner wall of the sludge collection cylinder; springs are sleeved on the guide pillars of the clasping sheets, and two ends of each spring respectively press the corresponding ball head and the inner wall of the rectangular shell; the ejector is fed forwards along the axis and can drive the holding arc surface sheets to hold the inner wall of the sludge collection cylinder outwards.
Further, a method for collecting lake bottom sludge sampler comprises the following steps:
step 1: the gas distribution device on the lake surface floater injects gas into the air bag cavity through the gas supply pipe, so that the volume of the elastic air bag can be expanded to be half of the volume of the air bag accommodating annular cavity, at the moment, the buoyancy force borne by the elastic air bag cannot completely overcome the gravity of the sludge collection cylinder and the metal counterweight, and the sludge collection cylinder and the air bag box body slowly sink along the plumb direction under the driving of the metal counterweight until the bottom of the falling plate at the lower end of the sludge collection cylinder stably falls to the bottom of the lake;
step 5, the air cylinder is restarted at the moment, and then the air cylinder drives the push rod to do shortened movement, because the outer rings of the upper piston, the lower piston and the sampling cup are in close fit with the inner wall of the cylinder, and all the holding arc surface pieces are separated from the inner wall of the cylinder of the sludge sampling cylinder, under the state that the push rod does shortened movement, an integrated structure formed by the upper piston, the linkage rod, the lower piston, the connecting rod and the sampling cup does not generate relative displacement, and the push rod is driven to do shortened movement to pull the whole formed by the air cylinder and the air cylinder holding device to move downwards for one end distance; but the position of the sampling cup in the state is reduced relative to the position of the sampling cup in the initial state of the step; in the process that the sampling cup descends along the sludge collection cylinder, lake water in the cylinder below the sampling cup is continuously and upwards extruded out of the lake water through the plurality of liquid guide channels, so that the lake water in the liquid guide channels is prevented from being downwards extruded into lake bottom sludge at the position to be sampled, and the lake bottom sludge at the position to be sampled is prevented from being washed by the liquid guide channels to influence the sampling authenticity;
step 7, repeating the steps to enable each holding cambered surface piece to tightly hold the inner wall of the sludge collection cylinder outwards; further, the air cylinder and the air cylinder holding device are in a state of being incapable of displacement;
step 10, starting an air cylinder to drive a push rod to do extension movement, and driving the push rod to do extension movement to push the whole body formed by the air cylinder and an air cylinder holding device to move upwards for a certain distance;
and step 15, collecting a sludge sample in the sampling cup cavity in the sampling cup.
Has the advantages that: the invention has simple structure, adopts the gas distribution device to extract or inject gas into the air bag cavity through the gas supply pipe, and further can expand or contract the elastic air bag; the expansion and contraction of the elastic air bag can enable the sludge collecting cylinder to do sinking and floating motions, so that the lake bottom sampling is carried out by simulating the diving process, the situation of manual diving is avoided, and more technical progress is detailed in the specific embodiment of the specification.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is an overall perspective view of the present invention;
FIG. 3 is a schematic overall front cross-sectional view of the present invention;
FIG. 4 is an overall cutaway view of the present invention;
FIG. 5 is a partially enlarged schematic view of a cylinder clasping apparatus;
FIG. 6 is a perspective view of an integrated structure formed by an upper piston, a linkage rod, a lower piston, a connecting rod, a sampling cup, a cylinder and a cylinder holding device;
FIG. 7 is a horizontal attitude elevation of FIG. 6;
fig. 8 is a schematic view of the transmission rod and ejector in cooperation.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The lake bottom sludge sampler shown in the attached figures 1 to 8 comprises a vertical sludge collection cylinder 9 below the surface of a lake, wherein the sludge collection cylinder 9 is of a vertically-through cylinder structure, and the cylinder inner wall 9.1 of the sludge collection cylinder 9 is a smooth inner wall;
the outer wall of the sludge collection cylinder 9 is integrally provided with an annular columnar air bag box body 42 coaxially with the axis, an air bag accommodating annular cavity 43 is coaxially arranged inside the air bag box body 42, a plurality of upper air leakage holes 59 are uniformly and hollowly formed in the annular cavity upper wall 58 of the air bag accommodating annular cavity 43, a plurality of lower air leakage holes 63 are uniformly and hollowly formed in the annular cavity lower wall 60 of the air bag accommodating annular cavity 43, the air bag accommodating annular cavity 43 is communicated with the outside through the lower air leakage holes 63 and the upper air leakage holes 59, an annular elastic air bag 46 is coaxially arranged inside the air bag accommodating annular cavity 43, and an air bag cavity 44 is formed inside the elastic air bag 46; the flexible air supply pipe 41 is further included, the upper end of the air supply pipe 41 is communicated and connected with an air distribution device on the lake surface, and the lower end of the flexible air supply pipe 41 is communicated with an air bag cavity 44 in the elastic air bag 46; the gas distribution device can draw or inject gas into the air bag cavity 44 through the gas supply pipe 41, so that the elastic air bag 46 can be expanded or contracted; the expansion and contraction of the elastic air bag 46 can make the sludge collecting cylinder 9 do the sinking and floating movement.
Further, a circle of disc-shaped falling disc 55 is arranged on the outer wall of the lower end of the sludge collection cylinder 9, a plurality of vertical liquid guide pipes 53 are distributed on the edge of the upper side outline of the falling disc 55 in a circumferential array manner, and the upper end of each liquid guide pipe 53 is communicated with the outside; a plurality of liquid discharge ports 57 are distributed at the lower end of the inner wall 9.1 of the sludge collection cylinder 9 in a circumferential array; a plurality of liquid guide channels 56 are distributed in the falling plate 55 in a circumferential array, and the liquid guide channels 56 respectively communicate the liquid guide pipes 53 with the liquid discharge ports 57; the upper side of the landing disc 55 is also integrally provided with an annular metal counterweight 54 coaxially.
Further, a lake bottom sludge sampler according to claim 1, characterized in that: an upper piston 39 and a lower piston 49 are arranged in the sludge collection cylinder 9 at intervals, the upper piston 39 and the lower piston 49 are respectively in close fit sliding fit with the inner wall 9.1 of the sludge collection cylinder 9, a pull handle 38 is arranged at the upper end of the upper piston 39, the sludge collection cylinder also comprises four linkage rods 47 which are parallel along the axial direction of the sludge collection cylinder 9, two ends of the four linkage rods 47 are respectively fixedly connected with the upper piston 39 and the lower piston 49, and the four linkage rods 47 are distributed on the contour edges of the upper piston 39 and the lower piston 49 in a circumferential array manner; a cylinder 21 is coaxially arranged between the upper piston 39 and the lower piston 49, and the tail end of a push rod 48 at the lower end of the cylinder 21 is fixedly connected with the lower piston 49; the upper end of the cylinder 21 is fixedly connected with a cylinder enclasping device 36 through a plurality of support columns 22; the cylinder clasping device 36 is positioned between the upper piston 39 and the cylinder 21; the cylinder holding device 36 can hold or release the inner wall 9.1 of the sludge collection cylinder 9; the cylinder enclasping device 36 and the cylinder 21 are movably clamped in the range enclosed by the four linkage rods 47.
Further, the lower end of the lower piston 49 is coaxially connected with a connecting rod 51, the lower end of the connecting rod 51 is coaxially and fixedly connected with a gyro-shaped sampling cup 52, and the tip 62 of the sampling cup 52 is coaxially arranged downwards; a circle of sealing ring 48 is fixedly arranged on the circumferential outer wall of the sampling cup 52, and the sealing ring 48 is in close fit sliding fit with the inner wall 9.1 of the sludge collection cylinder 9; the upper side of the sampling cup 52 is concavely provided with a sampling cup cavity 50.
Further, the cylinder enclasping device 36 includes a rectangular housing 14; the lower end of the rectangular shell 14 is fixedly connected with the upper end of the cylinder 21 through a plurality of supporting columns 22; an ejector 25 with a cone structure is arranged in the inner cavity 4 of the rectangular shell 14, the ejector 25 and the sludge collecting cylinder 9 are coaxially arranged, the upper end of the ejector 25 is a cone thick end, and the lower end of the ejector 25 is a cone tip end; a threaded through hole 23 is formed in the lower wall body 17 of the inner cavity 4 of the rectangular shell 14, the threaded through hole 23 and the ejector 25 are coaxially arranged, a transmission rod through hole 1 is formed in the upper wall body 12 of the inner cavity 4 of the rectangular shell 14, and the transmission rod through hole 1 and the ejector 25 are coaxially arranged; the tip of the ejector 25 is coaxially and integrally connected with a threaded rod 24, and the threaded rod 24 is in threaded fit connection with the threaded through hole 23; a transmission rod inserting channel 390 is coaxially arranged inside the ejector 25, the axial section of the transmission rod inserting channel 390 is a regular polygon, and the transmission rod inserting channel 390 penetrates out of the thick end of the ejector 25; the rectangular shell 14 is also provided with a motor bracket 35, a transmission motor 3 is arranged in the motor bracket 35, and the rotating output end of the transmission motor 3 is coaxially connected with a transmission rod 2 with a regular polygon-shaped shaft section; the end of the driving rod 2 passes through the driving rod passing hole 1, and the end of the driving rod 2 is slidably inserted into the driving rod insertion passage 390; the rectangular shell 14 is provided with a plurality of clasping piece guide posts which penetrate through holes 32 and a plurality of clasping piece guide posts 11 in a hollow manner on the peripheral wall body, each clasping piece guide post movably penetrates through each clasping piece guide post and penetrates through the through holes 32, the axis of each clasping piece guide post 11 is perpendicular to the axis of the ejector 25, one end of each clasping piece guide post 11 close to the ejector 25 is integrally provided with a ball head 15, and the surface of each ball head 15 is in contact with a conical surface 31 of the ejector 25; one end of each tightly holding sheet guide post 11, which is far away from the ejector 25, is connected with tightly holding arc surface sheets 8 in an integrated mode, and the bending radian of each tightly holding arc surface sheet 8 is consistent with the radian of the inner wall 9.1 of the sludge collection cylinder 9; each clasping piece guide post 11 is sleeved with a spring 16, and two ends of each spring 16 respectively press against the corresponding ball head 15 and the inner wall of the rectangular shell 14; the ejector 25 is fed forwards along the axis to drive each tightly-holding arc-shaped dough sheet 8 to tightly hold the inner wall 9.1 of the sludge collection cylinder 9 outwards.
The scheme has the following collection steps, processes and methods:
step 1: the gas distribution device on the lake surface floater injects gas into the air bag cavity 44 through the gas supply pipe 41, so that the volume of the elastic air bag 46 can be expanded to be half of the volume of the air bag accommodating annular cavity 43, at the moment, the buoyancy force borne by the elastic air bag 46 cannot completely overcome the gravity of the sludge collection cylinder 9 and the metal counterweight 54, and the sludge collection cylinder 9 and the air bag box body 42 slowly sink along the plumb direction under the driving of the metal counterweight 54 until the disk bottom 64 of the falling disk 55 at the lower end of the sludge collection cylinder 9 stably falls to the lake bottom;
step 5, the air cylinder 21 is restarted at the moment, and the air cylinder 21 drives the push rod 48 to do shortening movement, because the outer rings of the upper piston 39, the lower piston 49 and the sampling cup 52 are in close fit with the inner wall 9.1 of the cylinder, and each of the tightening arc surface patches 8 is separated from the inner wall 9.1 of the sludge collection cylinder 9, under the condition that the push rod 48 does shortening movement, the integral structure formed by the upper piston 39, the linkage rod 47, the lower piston 49, the connecting rod 51 and the sampling cup 52 does not generate relative displacement, and the shortened movement of the push rod 48 pulls the integral formed by the air cylinder 21 and the air cylinder tightening device 36 to move downwards for a distance; however, the position of the sampling cup 52 in this state is lowered relative to the position of the sampling cup 52 in the initial state of step 2; in the process that the sampling cup 52 descends along the sludge collection cylinder 9, the 37 lake water in the cylinder below the sampling cup 52 is continuously and upwards squeezed out of the lake water through the plurality of liquid guide channels 56, so that the lake water in the liquid guide channels 56 is prevented from being downwards squeezed into the lake bottom sludge at the position to be sampled, and the lake bottom sludge at the position to be sampled is prevented from being washed by the liquid guide channels 56 to influence the sampling authenticity;
step 7, repeating the step 2 to enable each tightly holding arc-shaped dough sheet 8 to tightly hold the inner wall 9.1 of the sludge collection cylinder 9 outwards; thereby bringing the cylinder 21 and the cylinder enclasping device 36 into a state of being incapable of displacement;
step 10, starting the air cylinder 21 to drive the push rod 48 to do extension movement, and driving the push rod 48 to do extension movement to push the whole body formed by the air cylinder 21 and the air cylinder holding device 36 to move upwards for a certain distance;
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (4)
1. A lake bottom sludge sampler is characterized in that: the device comprises a vertical sludge collection cylinder (9) below the lake surface, wherein the sludge collection cylinder (9) is of a vertically-through cylinder structure, and the cylinder inner wall (9.1) of the sludge collection cylinder (9) is a smooth inner wall;
the sludge collecting device is characterized in that an annular columnar air bag box body (42) is integrally and coaxially arranged on the outer wall of the sludge collecting cylinder (9), an air bag containing annular cavity (43) is coaxially arranged inside the air bag box body (42), a plurality of upper air leakage holes (59) are uniformly and hollowly arranged on the upper wall (58) of the annular cavity of the air bag containing annular cavity (43), a plurality of lower air leakage holes (63) are uniformly and hollowly arranged on the lower wall (60) of the annular cavity of the air bag containing annular cavity (43), the air bag containing annular cavity (43) is communicated with the outside through the lower air leakage holes (63) and the upper air leakage holes (59), an annular elastic air bag (46) is coaxially arranged in the air bag containing annular cavity (43), and an air bag cavity (44) is formed in the elastic air bag (46); the flexible air supply pipe (41) is further included, the upper end of the air supply pipe (41) is communicated and connected with an air distribution device on the lake surface, and the lower end of the flexible air supply pipe (41) is communicated with an air bag cavity (44) in the elastic air bag (46); the gas distribution device can draw or inject gas into the air bag cavity (44) through the gas supply pipe (41), so that the elastic air bag (46) can be expanded or contracted; the expansion and contraction of the elastic air bag (46) can enable the sludge collecting cylinder (9) to do sinking and floating movement;
a circle of disc-shaped falling disc (55) is arranged on the outer wall of the lower end of the sludge collection cylinder (9), a plurality of vertical liquid guide pipes (53) are distributed on the edge of the outline of the upper side of the falling disc (55) in a circumferential array manner, and the upper end of each liquid guide pipe (53) is communicated with the outside; a plurality of liquid discharge ports (57) are distributed at the lower end of the inner wall (9.1) of the sludge collection cylinder (9) in a circumferential array; a plurality of liquid guide channels (56) are distributed in the falling plate (55) in a circumferential array manner, and the liquid guide channels (56) respectively communicate the liquid guide pipes (53) with the liquid discharge ports (57); the upper side of the falling plate (55) is also integrally provided with an annular metal counterweight (54) coaxially;
an upper piston (39) and a lower piston (49) are arranged in a barrel (37) of the sludge collection barrel (9) at intervals, the upper piston (39) and the lower piston (49) are respectively in close fit sliding fit with a barrel inner wall (9.1) of the sludge collection barrel (9), a pull handle (38) is arranged at the upper end of the upper piston (39), the sludge collection barrel further comprises four linkage rods (47) which are parallel to the axis direction of the sludge collection barrel (9), two ends of the four linkage rods (47) are respectively fixedly connected with the upper piston (39) and the lower piston (49), and the four linkage rods (47) are distributed on the contour edges of the upper piston (39) and the lower piston (49) in a circumferential array manner; a cylinder (21) is coaxially arranged between the upper piston (39) and the lower piston (49), and the tail end of a push rod (48) at the lower end of the cylinder (21) is fixedly connected with the lower piston (49); the upper end of the cylinder (21) is fixedly connected with a cylinder enclasping device (36) through a plurality of support columns (22); the cylinder holding device (36) is positioned between the upper piston (39) and the cylinder (21); the cylinder holding device (36) can hold or release the inner wall (9.1) of the sludge collection cylinder (9); the cylinder enclasping device (36) and the cylinder (21) are movably clamped in the range enclosed by the four linkage rods (47).
2. The lake bottom sludge sampler as claimed in claim 1, wherein: the lower end of the lower piston (49) is coaxially connected with a connecting rod (51), the lower end of the connecting rod (51) is coaxially and fixedly connected with a gyro-shaped sampling cup (52), and the tip (62) of the sampling cup (52) is coaxially arranged downwards; a circle of sealing ring (61) is fixedly arranged on the circumferential outer wall of the sampling cup (52), and the sealing ring (61) is in close fit sliding fit with the inner wall (9.1) of the sludge collection cylinder (9); the upper side of the sampling cup (52) is concavely provided with a sampling cup cavity (50).
3. A lake bottom sludge sampler as claimed in claim 2, wherein: the cylinder enclasping device (36) comprises a rectangular shell (14); the lower end of the rectangular shell (14) is fixedly connected with the upper end of the cylinder (21) through a plurality of supporting columns (22); an ejector (25) with a cone structure is arranged in the inner cavity (4) of the rectangular shell (14), the ejector (25) and the sludge collection cylinder (9) are coaxially arranged, the upper end of the ejector (25) is a cone thick end, and the lower end of the ejector (25) is a cone tip end; a thread through hole (23) is formed in the lower wall body (17) of the inner cavity (4) of the rectangular shell (14), the thread through hole (23) and the ejector (25) are coaxially arranged, a transmission rod through hole (1) is formed in the upper wall body (12) of the inner cavity (4) of the rectangular shell (14), and the transmission rod through hole (1) and the ejector (25) are coaxially arranged; the tip of the ejector (25) is coaxially and integrally connected with a threaded rod (24), and the threaded rod (24) is in threaded fit connection with the threaded through hole (23); a transmission rod inserting channel (390) is coaxially arranged inside the ejector (25), the shaft section of the transmission rod inserting channel (390) is in a regular polygon shape, and the transmission rod inserting channel (390) penetrates out of the thick end of the ejector (25); a motor support (35) is further mounted on the rectangular shell (14), a transmission motor (3) is mounted in the motor support (35), and a transmission rod (2) with a regular polygon-shaped shaft section is coaxially connected with the rotating output end of the transmission motor (3); the tail end of the transmission rod (2) penetrates through the transmission rod penetrating hole (1), and the tail end of the transmission rod (2) is inserted into the transmission rod inserting channel (390) in a sliding mode; the rectangular shell (14) is provided with a plurality of tightly-holding sheet guide posts which penetrate through holes (32) in a hollow manner on the peripheral wall body respectively, the rectangular shell also comprises a plurality of tightly-holding sheet guide posts (11), each tightly-holding sheet guide post respectively movably penetrates through each tightly-holding sheet guide post and penetrates through the through holes (32), the axis of each tightly-holding sheet guide post (11) is perpendicular to the axis of the ejector (25), one end, close to the ejector (25), of each tightly-holding sheet guide post (11) is uniformly provided with a ball head (15), and the surface of each ball head (15) is contacted with a conical surface (31) of the ejector (25); one end, far away from the ejector (25), of each holding sheet guide post (11) is connected with a holding arc surface sheet (8) in an integrated mode, and the bending radian of each holding arc surface sheet (8) is consistent with the radian of the inner wall (9.1) of the sludge collection cylinder (9); springs (16) are sleeved on the clamping sheet guide columns (11), and two ends of each spring (16) respectively press the corresponding ball head (15) and the inner wall of the rectangular shell (14); the ejector (25) feeds forwards along the axis to drive the arc-shaped holding surface patches (8) to hold the inner wall (9.1) of the sludge collection cylinder (9) outwards.
4. The collection method of the lake bottom sludge sampler according to claim 3, characterized in that:
step 1: the gas distribution device on the lake surface floater injects gas into the air bag cavity (44) through the gas supply pipe (41), so that the volume of the elastic air bag (46) is expanded to be half of the volume of the air bag accommodating annular cavity (43), at the moment, the buoyancy force borne by the elastic air bag (46) cannot completely overcome the gravity of the sludge collection cylinder (9) and the metal counterweight (54), and the sludge collection cylinder (9) and the air bag box body (42) are driven by the metal counterweight (54) to do slow sinking motion along the plumb direction until the disk bottom (64) of the falling disk (55) at the lower end of the sludge collection cylinder (9) stably falls to the lake bottom;
step 2, starting a transmission motor (3) to drive a transmission rod (2) to rotate clockwise, further driving the ejector (25) to rotate synchronously by the transmission rod (2), driving a threaded rod (24) to rotate by the rotation of the ejector (25), and driving the ejector (25) to move downwards by the clockwise rotation of the threaded rod (24) due to the threaded fit of the threaded rod (24) and the threaded through hole (23), wherein the threaded rod (24) feeds forwards to drive the ejector (25) to move downwards, and the transmission rod (2) with a regular polygon cross section slides axially relative to a transmission rod insertion channel (390); at the moment, due to the forward movement of the ejector (25), each ball head (15) is gradually transited from the thin end of the contact conical surface (31) to the thick end of the contact conical surface (31), so that each holding sheet guide post (11) performs ejection movement gradually far away from the ejector (25), and each holding arc surface sheet (8) performs movement gradually far away from the ejector (25) until each holding arc surface sheet (8) tightly holds the inner wall (9.1) of the sludge collection cylinder (9) outwards; further, the air cylinder (21) and the air cylinder holding device (36) are in a state of being incapable of displacement;
step 3, the air cylinder (21) drives the push rod (48) to do an extending motion, then the push rod (48) drives an integrated structure formed by the upper piston (39), the linkage rod (47), the lower piston (49), the connecting rod (51) and the sampling cup (52) to feed downwards for a certain distance, and when the extending motion of the push rod (48) reaches the limit, the tip of the sampling cup (52) does not touch the lake bottom, so that the sampling cup (52) needs to continuously move downwards for a distance;
step 4, the transmission motor (3) runs in the reverse direction, so that the transmission rod (2) rotates anticlockwise, the transmission rod (2) drives the ejector (25) to rotate anticlockwise synchronously, the ejector (25) rotates to drive the threaded rod (24) to rotate synchronously, the threaded rod (24) rotates anticlockwise to enable the ejector (25) to continuously feed upwards, the threaded rod (24) feeds upwards to drive the ejector (25) to move upwards, and the transmission rod (2) with the regular polygonal cross section slides axially relative to the transmission rod insertion channel (390); at the moment, due to the upward movement of the ejector (25), each ball head (15) is gradually transited from the thick end of the contact conical surface (31) to the thin end of the contact conical surface (31), so that each holding sheet guide post (11) gradually moves close to the ejector (25), and each holding arc surface sheet (8) gradually moves close to the ejector (25) until each holding arc surface sheet (8) is separated from the inner wall (9.1) of the sludge collection cylinder (9) inwards; further enabling the air cylinder (21) and the air cylinder holding device (36) to be in a state of sliding along the axis of the sludge collecting cylinder (9);
step 5, the air cylinder (21) is restarted at the moment, the air cylinder (21) drives the push rod (48) to do shortened movement, the outer rings of the upper piston (39), the lower piston (49) and the sampling cup (52) are in tight fit with the inner wall (9.1) of the cylinder, the tightly-holding arc surface patches (8) are separated from the inner wall (9.1) of the sludge collection cylinder (9), under the condition that the push rod (48) does shortened movement, an integrated structure formed by the upper piston (39), the linkage rod (47), the lower piston (49), the connecting rod (51) and the sampling cup (52) does not generate relative displacement, and the shortened movement of the drive push rod (48) pulls the whole formed by the air cylinder (21) and the air cylinder tightly-holding device (36) to move downwards for one end distance; but the position of the sampling cup (52) in the state is reduced relative to the position of the sampling cup (52) in the initial state of the step 2; in the process that the sampling cup (52) descends along the sludge collecting cylinder (9), lake water in the cylinder (37) below the sampling cup (52) is continuously extruded upwards out of the lake water through the plurality of liquid guide channels (56), so that the lake water in the liquid guide channels (56) is prevented from being extruded downwards into the lake bottom sludge at the position to be sampled, and the lake bottom sludge at the position to be sampled is prevented from being washed by the liquid guide channels (56) to influence the sampling authenticity;
step 6, repeating the steps 2 to 5 until the tip of the sampling cup (52) descends to touch the lake bottom, and enabling the sampling cup (52) to feed downwards to be completely inserted into the lake bottom sludge for a certain distance, meanwhile, a gas distribution device on the lake surface floater pumps all gas in the air bag cavity (44) through the gas supply pipe (41), and further enabling the tray bottom (64) of the descending tray (55) to downwards extrude the lake bottom sludge where the sampling cup (52) sinks, and enabling the lake bottom sludge where the sampling cup (52) sinks to be smoothly extruded into the sampling cup cavity (50); completing the collection of lake bottom samples;
step 7, repeating the step 2 to enable each tightly-holding arc-shaped dough sheet (8) to tightly hold the inner wall (9.1) of the sludge collection cylinder (9) outwards; further, the air cylinder (21) and the air cylinder holding device (36) are in a state of being incapable of displacement;
step 8, restarting the air cylinder (21), driving the push rod (48) to do shortened movement by the air cylinder (21), and driving an integrated structure formed by the upper piston (39), the linkage rod (47), the lower piston (49), the connecting rod (51) and the sampling cup (52) to feed upwards for a distance by the push rod (48);
step 9, repeating the step 4, and enabling the air cylinder (21) and the air cylinder holding device (36) to be in a state of sliding along the axis of the sludge collection cylinder (9);
step 10, starting the air cylinder (21) to drive the push rod (48) to do extension movement, and driving the push rod (48) to do extension movement to push the whole formed by the air cylinder (21) and the air cylinder holding device (36) to move upwards for a certain distance;
step 11, repeating the steps 7 to 10 until the sampling cup (52) moves upwards to the initial state in the step 2, and further enabling the sampling cup cavity (50) in the sampling cup (52) to be in a sealed state;
step 12, injecting gas into an air bag cavity (44) by a gas distribution device on the lake surface floater through a gas supply pipe (41), further enabling an elastic air bag (46) to expand until the air bag accommodating ring cavity (43) is completely filled, further enabling buoyancy borne by the elastic air bag (46) to be larger than the gravity of a sludge collection cylinder (9) and a metal counterweight (54), and further enabling the sludge collection cylinder (9), an air bag box body (42) and the metal counterweight (54) to float upwards in the plumb direction; until the upper end of the sludge collection cylinder (9) completely floats out of the water surface;
step 13, repeating the step 4, and enabling the air cylinder (21) and the air cylinder holding device (36) to be in a state of sliding along the axis of the sludge collection cylinder (9);
step 14, a user holds a pull handle (38) on an upper piston (39) to lift upwards, so that an integrated structure formed by the upper piston (39), a linkage rod (47), a lower piston (49), a connecting rod (51), a sampling cup (52), an air cylinder (21) and an air cylinder holding device (36) is integrally pulled out upwards along a sludge collection cylinder (9);
and step 15, collecting a sludge sample in the sampling cup cavity (50) in the sampling cup (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811557749.0A CN109632377B (en) | 2018-12-19 | 2018-12-19 | Lake bottom sludge sampler and collection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811557749.0A CN109632377B (en) | 2018-12-19 | 2018-12-19 | Lake bottom sludge sampler and collection method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109632377A CN109632377A (en) | 2019-04-16 |
| CN109632377B true CN109632377B (en) | 2021-01-01 |
Family
ID=66075492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811557749.0A Active CN109632377B (en) | 2018-12-19 | 2018-12-19 | Lake bottom sludge sampler and collection method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109632377B (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346178B (en) * | 2019-06-17 | 2022-03-22 | 浙江省海洋水产研究所 | Marine dredger and dredging method |
| CN110426240B (en) * | 2019-06-17 | 2022-02-11 | 浙江省海洋水产研究所 | Device and method for taking out underwater sludge and attachments |
| CN110285998B (en) * | 2019-08-09 | 2020-01-21 | 曹麟丰 | Deep water area sludge sampler for environment detection |
| CN110455587A (en) * | 2019-09-02 | 2019-11-15 | 龚建国 | A kind of ecology water quality monitoring deep water sampling device |
| CN110779761B (en) * | 2019-11-15 | 2021-11-19 | 哈尔滨师范大学 | Lake silt sampling device |
| CN110887764B (en) * | 2019-12-23 | 2024-06-14 | 中交第一航务工程局有限公司 | Underwater silt property in-situ tester and testing method |
| CN111795848B (en) * | 2020-07-22 | 2023-05-12 | 马东晓 | River sediment accumulation and siltation detection device |
| CN112326310B (en) * | 2020-10-26 | 2023-11-21 | 华北水利水电大学 | Silt sample collection device for ecological monitoring and collection method thereof |
| CN112683596B (en) * | 2021-01-29 | 2022-08-26 | 河北建筑工程学院 | Device for collecting river bottom mud in original state and collecting method thereof |
| CN112903672B (en) * | 2021-02-25 | 2024-08-23 | 宁波鄞州华智生物科技有限公司 | Method for repairing and detecting gas in underwater silt |
| CN113588321B (en) * | 2021-07-21 | 2024-07-16 | 南京睿通芯安企业管理咨询有限公司 | Underground soil sampling device with righting mechanism for submarine oil drilling |
| CN114323794B (en) * | 2021-12-31 | 2023-12-29 | 江苏格林勒斯检测科技有限公司 | Detection sampling system for volatile or semi-volatile organic compounds in soil |
| CN114544253A (en) * | 2022-04-22 | 2022-05-27 | 奥来国信（北京）检测技术有限责任公司 | Deep water area sludge sampler for environment detection |
| CN115235825B (en) * | 2022-08-01 | 2024-07-02 | 南阳山河水利技术咨询服务有限公司 | Surface runoff sediment sampling device and method |
| CN115235824A (en) * | 2022-08-01 | 2022-10-25 | 南阳山河水利技术咨询服务有限公司 | Multifunctional river sediment content sampling equipment |
| CN115436110B (en) * | 2022-11-09 | 2023-01-24 | 山东省国土空间生态修复中心 | Underground water sample collecting device for geological exploration and using method thereof |
| CN115901361B (en) * | 2023-03-09 | 2023-06-06 | 山东环保产业研究院有限公司 | Ecological environment detection device |
| CN116448493B (en) * | 2023-06-16 | 2023-09-12 | 交通运输部天津水运工程科学研究所 | Underwater sediment sample collecting device |
| CN118362068B (en) * | 2024-06-19 | 2024-08-13 | 洛阳展尚建筑工程有限公司 | Survey and drawing device for collecting thickness of underwater silt |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013022233A2 (en) * | 2011-08-11 | 2013-02-14 | 한국해양연구원 | Compound sample extraction apparatus |
| CN102944443A (en) * | 2012-11-23 | 2013-02-27 | 天津出入境检验检疫局工业产品安全技术中心 | Step-control mechanical sampling device |
| KR20140108446A (en) * | 2013-02-27 | 2014-09-11 | 현대제철 주식회사 | Water Sampler |
| CN103323291B (en) * | 2013-06-06 | 2015-06-17 | 王志勇 | Deepwater area sediment stratified collection and preservation device |
| CN108344598A (en) * | 2018-02-12 | 2018-07-31 | 重庆三峡学院 | A kind of tester for collecting sediment deposition in fluctuation belt |
| CN208187769U (en) * | 2018-06-01 | 2018-12-04 | 吉林省环境科学研究院 | A kind of water detection collection device of water pollution detection |
-
2018
- 2018-12-19 CN CN201811557749.0A patent/CN109632377B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013022233A2 (en) * | 2011-08-11 | 2013-02-14 | 한국해양연구원 | Compound sample extraction apparatus |
| CN102944443A (en) * | 2012-11-23 | 2013-02-27 | 天津出入境检验检疫局工业产品安全技术中心 | Step-control mechanical sampling device |
| KR20140108446A (en) * | 2013-02-27 | 2014-09-11 | 현대제철 주식회사 | Water Sampler |
| CN103323291B (en) * | 2013-06-06 | 2015-06-17 | 王志勇 | Deepwater area sediment stratified collection and preservation device |
| CN108344598A (en) * | 2018-02-12 | 2018-07-31 | 重庆三峡学院 | A kind of tester for collecting sediment deposition in fluctuation belt |
| CN208187769U (en) * | 2018-06-01 | 2018-12-04 | 吉林省环境科学研究院 | A kind of water detection collection device of water pollution detection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109632377A (en) | 2019-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109632377B (en) | Lake bottom sludge sampler and collection method thereof | |
| CN109283010B (en) | Sampling device for soil detection and sampling working method thereof | |
| CN104849094B (en) | Portable beach geology sampler | |
| CN111458194B (en) | Layered sampling device for water body with any depth | |
| CN217819552U (en) | Sampler for deep sea | |
| CN114878247B (en) | Hydrogeology reconnaissance water source sampling test device | |
| CN204241270U (en) | Liquid positioning sampler | |
| CN116398045A (en) | Deep sea deposit top layer rock core normal position crushing equipment | |
| CN107631907B (en) | Automatic collection device for seawater samples | |
| CN115165471A (en) | Ecological environment detection device and use method thereof | |
| CN114383897A (en) | Sampling device for geological mapping | |
| CN115931463A (en) | Sampling device of edible fungus constant-temperature incubator and use method | |
| CN217466354U (en) | Sewage sampling detection device | |
| CN214667957U (en) | Automatic open-close type sampler for water quality microorganism detection | |
| CN111076981B (en) | Deep water sampling mechanism for laboratory sewage detection and sampling method thereof | |
| CN209856176U (en) | Biological blanket fixing device | |
| CN112577782A (en) | Automatic water quality sampling system of unmanned ship system | |
| CN106969937B (en) | Handheld columnar sediment collector with mud cutting edge | |
| CN216386457U (en) | River water sampling device | |
| CN206309390U (en) | Horizontal well oil pipe conveying mechanical type mass flow device | |
| CN220399016U (en) | Water resource sampling device | |
| CN117027783B (en) | Thin-wall core drill suitable for geological exploration | |
| CN113029631B (en) | Adjustable common circulating sampler for connection sampling and use method thereof | |
| CN211904760U (en) | Laboratory sewage detection's sampling mechanism | |
| CN219319203U (en) | Spacing device for step blasting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |