CN117232894A - Underwater continuous sampling device - Google Patents
Underwater continuous sampling device Download PDFInfo
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- CN117232894A CN117232894A CN202311507725.5A CN202311507725A CN117232894A CN 117232894 A CN117232894 A CN 117232894A CN 202311507725 A CN202311507725 A CN 202311507725A CN 117232894 A CN117232894 A CN 117232894A
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- 238000005070 sampling Methods 0.000 title claims abstract description 43
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 2
- 239000002689 soil Substances 0.000 abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 238000013459 approach Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The invention discloses an underwater continuous sampling device, when in use, a first end stretches into the water and approaches the water bottom, then a second driving part is started, so that a collecting cylinder is driven to rotate to be opposite to a lifting rod, then the first driving part is started, so that a lifting rod is driven to rotate to move towards the direction close to the first end, the collecting cylinder is pushed to stretch out of the first end, soil collection is realized, after the collection is completed, the first driving part is started again, so that the collecting cylinder is pulled to be pulled out of the soil, finally the collecting cylinder is retracted into an outer sleeve, the lifting rod can be separated from the collecting cylinder at the moment, then the second driving part is started again, so that the collecting cylinder which is completed to rotate is driven to rotate to be opposite to the lifting rod, and the next collecting cylinder which is not collected can be sampled in such a cycle as to sample soil for multiple times at the same position or different positions of the water bottom, so that continuous sampling is realized, and the sampling efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of sampling devices, in particular to an underwater continuous sampling device.
Background
Sample collection is an important technical means for surface matrix investigation, and underwater substrate sludge is sampled and analyzed to obtain the information of the thickness of an underwater substrate layer, the type of the substrate, the composition of substances and the like, so that the accumulation, distribution, conversion and migration rules of pollutants discharged into a water body in the substrate sludge are researched; the existing sampling device is a simple sampling tube, when in use, the sampling tube is directly inserted into the sludge, and then the sampling tube is arranged to obtain a sampled soil sample; but current sampling device structure is comparatively simple, can only take the soil sample once at every turn, and sampling efficiency remains to promote.
Disclosure of Invention
The invention mainly aims to provide an underwater continuous sampling device, and aims to solve the problems that the existing sampling device is simple in structure, can only take a soil sample once at a time and has to be improved in sampling efficiency.
In order to achieve the above purpose, the technical scheme provided by the invention is as follows:
an underwater continuous sampling device comprises an outer sleeve, an inner shaft, a collection assembly, a first driving part, a second driving part, a screw rod, a movable seat, a first connecting seat, a second connecting seat and a lifting rod; the inner shaft is rotatably arranged in the outer sleeve; the inner shaft and the outer sleeve share a central axis; the number of the acquisition components is a plurality; the plurality of acquisition assemblies are uniformly arranged around the inner shaft; the outer sleeve includes opposite first and second ends; the acquisition assembly is proximate the first end; the acquisition assembly comprises an acquisition cylinder connected to the inner shaft; the first connecting seat and the second connecting seat are both connected to the inner wall of the outer sleeve; the two ends of the screw rod are respectively rotatably arranged on the first connecting seat and the second connecting seat in a penetrating way; the screw rod is parallel to the inner shaft; the movable seat is provided with a threaded hole; the movable seat is sleeved on the screw rod in a matched manner through the threaded hole; the lifting rod is fixedly arranged on one side of the movable seat, which is close to the inner wall of the outer sleeve in a penetrating manner; the second connecting seat is closer to the first end than the first connecting seat; the lifting rod is parallel to the screw rod; the lifting rod is arranged on the second connecting seat in a sliding penetrating manner; one end of the lifting rod, which is close to the first end, is used for being connected with or separated from the collecting cylinder; the first driving component is used for driving the screw rod to rotate so as to drive the movable seat to move and drive the lifting rod to lift, so that the collecting cylinder connected with the lifting rod is driven to extend out of the first end or retract into the outer sleeve; the second driving part is used for driving the inner shaft to rotate so as to drive the collection cylinder to rotate; the central axis of the collection cylinder is parallel to the inner shaft.
Preferably, the device further comprises a first connecting sleeve and a second connecting sleeve; the first connecting sleeve and the second connecting sleeve are both connected to the inner wall of the outer sleeve; the first connecting sleeve and the second connecting sleeve are coaxial with the outer sleeve; the inner shaft sequentially rotates to penetrate through the first connecting sleeve and the second connecting sleeve.
Preferably, the first driving part includes a first motor, a connecting rod, a first bevel gear and a second bevel gear; the connecting rod is coaxially connected to one end of the screw rod, which is close to the second end; the first bevel gear is coaxially connected to the connecting rod; the first motor is arranged on the outer wall of the outer sleeve and is close to the second end; the output shaft of the first motor movably penetrates through the outer sleeve and extends into the outer sleeve; the output shaft of the first motor is coaxially connected with the second bevel gear; the second bevel gear is meshed with the first bevel gear.
Preferably, the second driving part includes a second motor, a worm and a worm wheel; the worm is coaxially connected to one end of the inner shaft, which is close to the second end; the second motor is arranged on the outer wall of the outer sleeve and is close to the second end; the output shaft of the second motor movably penetrates through the outer sleeve and extends into the outer sleeve; the output shaft of the second motor is coaxially connected with the worm gear; the worm wheel is meshed with the worm.
Preferably, the device further comprises a circular plate and an annular plate; the circular plate is vertically connected with one end, close to the second end, of the inner shaft; the circular plate and the inner shaft share the central axis; the annular plate is connected to the inner wall of the outer sleeve and is close to the second end; the annular plate and the inner shaft share a central axis; the circular plate is positioned between the annular plate and the second end; the inner shaft moves through the annular plate; a plurality of universal balls are arranged on one side of the circular plate, which faces the annular plate, and the universal balls are uniformly arranged around the inner shaft; the ball of the universal ball is in rolling contact with the annular plate.
Preferably, the collection assembly further comprises a sliding sleeve; the sliding sleeve is connected with the inner shaft; the sliding sleeves of the collecting assemblies are distributed in a central symmetry mode by the inner shaft; the central axis of the sliding sleeve is parallel to the inner shaft; the collecting cylinder is arranged in the sliding sleeve in a sliding way; one end of the collection tube, which is away from the second end, is open.
Preferably, a baffle is arranged at one end of the collection cylinder, which is close to the second end; an elastic inner annular plate is arranged around the inner wall of the outer sleeve; the elastic inner ring plate and the baffle are perpendicular to the inner shaft; the elastic inner ring plate can be abutted against the baffle, and when the elastic inner ring plate is abutted against the baffle, the collecting cylinder is retracted into the outer sleeve.
Preferably, the device further comprises a sliding block, a connecting plate, a spring and a third driving part; a sleeve seat is arranged on one side of the baffle plate, which is close to the second end; the end wall, close to the second end, of the sleeve seat is provided with a groove; the cross section of the groove is circular; an annular gap which is coaxial with the groove is formed in the inner wall of the groove;
the lifting rod is axially communicated with the first through hole; a second through hole which is communicated with the first through hole is formed in the lifting rod, which is close to the first end; the central axis of the second through hole is perpendicular to the central axis of the first through hole; the sliding block is in sliding fit with the second through hole; one end of the sliding block, which is positioned in the first through hole, is connected with a connecting plate; one end of the spring connected with the connecting plate is connected with the inner wall of the first through hole, and the other end of the spring is connected with the connecting plate; the elastic force of the spring enables the sliding block to have a trend of being received in the second through hole; the lifting rod can move to extend into the groove and is abutted against the inner bottom wall of the groove; when the lifting rod stretches into the groove, the third driving part is used for driving the sliding block to stretch out of the second through hole and stretch into the annular gap.
Preferably, the inner diameter of the groove is larger than the outer diameter of the lifting rod; the third driving part comprises a third motor, a rotating shaft and a cam; the third motor is arranged at one end of the lifting rod, which is close to the second end; the rotating shaft is rotatably arranged through the first through hole and is coaxial with the first through hole; one end of the rotating shaft, which is far away from the third motor, is connected with the cam; the cam is abutted with one side, away from the sliding block, of the connecting plate; the third motor is used for driving the rotating shaft to rotate so as to drive the cam to rotate.
Preferably, the first connecting seat and the second connecting seat are both arranged close to the second end.
Compared with the prior art, the invention has at least the following beneficial effects:
the underwater continuous sampling device provided by the invention can realize continuous and repeated sampling of the bottom mud under water; when the device is specifically used, the first end stretches into water and approaches the water bottom, then the second driving part is started to drive the inner shaft to rotate so as to drive the collecting assembly to rotate, thereby driving the collecting barrel to rotate to be opposite to the lifting rod, then stopping the second driving part, and starting the first driving part to drive the screw rod to rotate so as to drive the movable seat to move, thereby driving the lifting rod to move towards the direction close to the first end, pushing the collecting barrel to stretch out from the first end, embedding the collecting barrel into bottom mud to realize the collection of soil, starting the first driving part again after the collection is completed so as to drive the lifting rod to move towards the direction close to the second end, pulling the collecting barrel out of the soil, finally enabling the collecting barrel to be taken in the outer sleeve, at the moment, separating the lifting rod from the collecting barrel, then starting the second driving part again so as to rotate the collecting barrel which is completed, and enabling the collecting barrel which is not collected to rotate to be opposite to the lifting rod, so that the circulation is realized, and the soil can be sampled for multiple times at the same position or different positions of the water bottom, thereby realizing continuous sampling, and greatly improving the sampling efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an underwater continuous sampling device according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of a detail A in FIG. 1;
FIG. 3 is a schematic view of a partial structure of an embodiment of an underwater continuous sampling device according to the present invention;
fig. 4 is an enlarged schematic view of detail B in fig. 3.
Reference numerals illustrate:
110. an outer sleeve; 120. a first end; 130. a second end; 140. a sealing plate; 150. a round hole; 160. an inner shaft; 170. a first connection sleeve; 180. a second connecting sleeve; 190. a first connection base; 210. a second connecting seat; 220. a movable seat; 230. a screw rod; 240. a lifting rod; 250. a first motor; 260. a second motor; 270. a circular plate; 280. an annular plate; 290. a sliding sleeve; 310. a collection cylinder; 320. a baffle; 330. an elastic inner ring plate; 340. a sleeve seat; 350. a universal ball; 360. a worm wheel; 370. a worm; 380. a connecting rod; 390. a first bevel gear; 410. a second bevel gear; 420. a third motor; 430. a groove; 440. an annular gap; 450. a first through hole; 460. a second through hole; 470. a slide block; 480. a connecting plate; 490. a spring; 510. a cam; 520. a rotating shaft.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.
The invention provides an underwater continuous sampling device.
Referring to fig. 1-4, in an embodiment of an underwater continuous sampling device according to the present invention, the underwater continuous sampling device includes an outer sleeve 110, an inner shaft 160, a collecting assembly, a first driving component, a second driving component, a screw 230, a moving seat 220, a first connecting seat 190, a second connecting seat 210 and a lifting rod 240; the inner shaft 160 is rotatably disposed within the outer sleeve 110; the inner shaft 160 and the outer sleeve 110 share a central axis; the number of acquisition components is a plurality (4 in this embodiment); the plurality of collection assemblies are disposed evenly around the inner shaft 160; the outer sleeve 110 includes opposite first and second ends 120, 130; the acquisition assembly is proximate the first end 120; the collection assembly includes a collection canister 310 connected to the inner shaft 160; the first drive member and the second drive member are each disposed proximate the second end 130; the first connecting seat 190 and the second connecting seat 210 are both connected to the inner wall of the outer sleeve 110; the two ends of the screw 230 are respectively rotatably inserted into the first connecting seat 190 and the second connecting seat 210; the screw 230 is parallel to the inner shaft 160; the moving seat 220 is provided with a threaded hole (not shown); the movable seat 220 is sleeved on the screw rod 230 through the matching of the threaded holes; a lifting rod 240 is fixedly arranged on one side of the movable seat 220, which is close to the inner wall of the outer sleeve 110; the second connection mount 210 is closer to the first end 120 than the first connection mount 190; the lifting rod 240 is parallel to the screw 230; the lifting rod 240 is slidably disposed through the second connecting seat 210; one end of the lifting rod 240 near the first end 120 is used for connecting with or disconnecting from the collection cylinder 310; the first driving component is used for driving the screw 230 to rotate so as to drive the movable seat 220 to move and drive the lifting rod 240 to lift, so as to drive the collection tube 310 connected with the lifting rod 240 to extend out of the first end 120 or retract into the outer sleeve 110; the second driving component is used for driving the inner shaft 160 to rotate so as to drive the collection assembly to rotate and drive the collection barrel 310 to rotate; the central axis of the collection canister 310 is parallel to the inner shaft 160; the collection canister 310 has a vent hole at one end near the second end 130 to facilitate drainage of water when it is embedded in the earth.
The underwater continuous sampling device provided by the invention can realize continuous and repeated sampling of the bottom mud under water; when the sampler is specifically used, the first end 120 stretches into water and approaches the water bottom, then the second driving part is started to drive the inner shaft 160 to rotate so as to drive the collecting assembly to rotate, thereby driving the collecting barrel 310 to rotate to be opposite to the lifting rod 240, then the second driving part is stopped, and the first driving part is started to drive the screw rod 230 to rotate so as to drive the movable seat 220 to move so as to drive the lifting rod 240 to move towards the direction close to the first end 120, thereby pushing the collecting barrel 310 to stretch out from the first end 120 to be embedded into bottom mud, collecting soil is realized, after the collection is completed, the first driving part is started again so as to drive the lifting rod 240 to move towards the direction close to the second end 130, thus pulling the collecting barrel 310 to be pulled out from the soil, finally, the collecting barrel 310 is taken into the outer sleeve 110, the lifting rod 240 can be separated from the collecting barrel 310 at the moment, then the second driving part is started again so as to rotate the collecting barrel 310 after the collection is completed, and the collecting barrel 310 which is driven to rotate to be opposite to the lifting rod 240, and the next collecting barrel 310 which is not collected, thus the cycle is performed, and the soil is sampled at the same position or different positions of the water bottom, and the soil is sampled continuously, and the soil is sampled for a plurality of times, so that the sampling efficiency is greatly realized.
In addition, the underwater continuous sampling device further comprises a first connecting sleeve 170 and a second connecting sleeve 180; the first connecting sleeve 170 and the second connecting sleeve 180 are connected to the inner wall of the outer sleeve 110; the first connecting sleeve 170 and the second connecting sleeve 180 are coaxial with the outer sleeve 110, specifically: the first connection sleeve 170 is closer to the second end 130 than the second connection sleeve 180; the inner shaft 160 is rotatably inserted through the first and second connection sleeves 170 and 180 in sequence.
Specifically, the first driving part includes a first motor 250, a connection rod 380, a first bevel gear 390, and a second bevel gear 410; the connecting rod 380 is coaxially connected to one end of the screw 230 near the second end 130; the first bevel gear 390 is coaxially coupled to the connecting rod 380; the first motor 250 is disposed on the outer wall of the outer sleeve 110 and is proximate to the second end 130; the output shaft of the first motor 250 movably penetrates through the outer sleeve 110 and extends into the outer sleeve 110; the output shaft of the first motor 250 is coaxially connected with a second bevel gear 410; the second bevel gear 410 meshes with the first bevel gear 390.
Through the above technical scheme, the structure of the first driving component is perfected, that is, the first motor 250 drives the screw rod 230 to rotate, and then drives the movable seat 220 to move, so as to drive the lifting rod 240 to axially move, and thus the collection cylinder 310 is pushed or pulled.
Further, the second driving part includes a second motor 260, a worm wheel 360, and a worm 370; the worm gear 360 is coaxially coupled to an end of the inner shaft 160 proximate the second end 130; the second motor 260 is disposed on the outer wall of the outer sleeve 110 and is close to the second end 130; the output shaft of the second motor 260 movably penetrates through the outer sleeve 110 and extends into the outer sleeve 110; an output shaft of the second motor 260 is coaxially connected with a worm 370; the worm 370 is engaged with the worm wheel 360. By providing the worm 370 and worm wheel 360 cooperating drive structure, a reduction and torque increase can be achieved, thereby better driving each collection barrel 310 to rotate.
Specifically, as shown in fig. 1 and 2, the underwater continuous sampling device further comprises a circular plate 270 and an annular plate 280; the circular plate 270 is vertically connected to one end of the inner shaft 160 near the second end 130; the circular plate 270 is concentric with the inner shaft 160; the annular plate 280 is connected to the inner wall of the outer sleeve 110 and is adjacent to the second end 130; the annular plate 280 is centered with the inner shaft 160; the circular plate 270 is between the annular plate 280 and the second end 130; the inner shaft 160 moves through the annular plate 280; a plurality of universal balls 350 are provided on one side of the circular plate 270 facing the annular plate 280, and the plurality of universal balls 350 are uniformly provided around the inner shaft 160; the balls of the universal ball 350 roll against the annular plate 280. Through the above technical solution, the axial supporting force of the inner shaft 160 is enhanced, so that the inner shaft 160 provides more stable support for each acquisition assembly.
In addition, the collection assembly further includes a sliding sleeve 290; the sliding sleeve 290 is coupled to the inner shaft 160; the sliding sleeves 290 of the acquisition components are symmetrically distributed with the inner shaft 160 in the center; the central axis of the sliding sleeve 290 is parallel to the inner shaft 160; the collection tube 310 is arranged in the sliding sleeve 290 in a sliding way; the end of the collection canister 310 facing away from the second end 130 is open. By providing the sliding sleeve 290, the collection canister 310 may be rotated relative to the sliding sleeve 290, thereby allowing the collection canister 310 to extend or retract from the outer sleeve 110.
Specifically, a baffle 320 is disposed at an end of the collection tube 310 near the second end 130, and an outer diameter of the baffle 320 is greater than an outer diameter of the sliding sleeve 290, so as to prevent the collection tube 310 from being separated from the sliding sleeve 290; an inner wall of the outer sleeve 110 is circumferentially provided with an elastic inner ring plate 330 (e.g., a rubber inner ring plate); the elastic inner ring plate 330 and the baffle 320 are both perpendicular to the inner shaft 160; the elastic inner ring plate 330 can abut against the baffle 320, and when the elastic inner ring plate 330 abuts against the baffle 320, the collection tube 310 is retracted into the outer sleeve 110.
Specifically, in the normal state, the baffle 320 abuts against the elastic inner ring plate 330, and when the lifting rod 240 moves in a direction approaching to the first end 120 to push the collection cylinder 310, the baffle 320 directly presses and passes over the elastic inner ring plate 330, so that the collection cylinder 310 continues to extend outwards; when the lifting rod 240 moves in a direction approaching the second end 130 to pull the collection tube 310, the collection tube 310 is retracted into the outer sleeve 110, the baffle 320 is pressed again and passes over the elastic inner ring plate 330, then the lifting rod 240 stops moving, and finally the collection tube 310 abuts against the elastic inner ring plate 330 under the action of self weight, so that the collection tube 310 is prevented from sliding in a direction approaching the second end 130 under the action of self weight.
In addition, the underwater continuous sampling device further comprises a sliding block 470, a connecting plate 480, a spring 490 and a third driving component; a sleeve seat 340 is arranged on one side of the baffle 320 close to the second end 130; the end wall of the sleeve 340 adjacent the second end 130 is provided with a groove 430; the cross section of the groove 430 is circular; the inner wall of the groove 430 is provided with an annular gap 440 coaxial with the groove 430.
The lifting rod 240 is provided with a first through hole 450 in an axial penetrating way; a second through hole 460 communicated with the first through hole 450 is formed in the lifting rod 240 near the first end 120; the central axis of the second through hole 460 is perpendicular to the central axis of the first through hole 450; the sliding block 470 is slidably engaged through the second through hole 460; one end of the slider 470 located in the first through hole 450 is connected with a connection board 480; one end of the spring 490 is connected to the inner wall of the first through hole 450, and the other end of the spring 490 is connected to the connecting plate 480; the spring 490 is always in a stretched state, and the elastic force of the spring 490 makes the sliding block 470 have a trend of being received in the second through hole 460; the lifting rod 240 can move to extend into the groove 430 and abut against the inner bottom wall of the groove 430; when the lifting rod 240 extends into the groove 430, the third driving component is used for driving the sliding block 470 to extend out of the second through hole 460 and into the annular gap 440.
Specifically, the inner diameter of the groove 430 is larger than the outer diameter of the lifting rod 240, and the central axis of the groove 430 is parallel to the central axis of the collection cylinder 310; the third driving part includes a third motor 420, a rotation shaft 520, and a cam 510; the third motor 420 is disposed at one end of the lifting rod 240 near the second end 130; the rotating shaft 520 is rotatably disposed through the first through hole 450 and is coaxial with the first through hole 450; one end of the rotating shaft 520, which is far away from the third motor 420, is connected with a cam 510; the cam 510 is abutted against one side of the connection plate 480 away from the slide block 470; the third motor 420 is used for driving the rotating shaft 520 to rotate so as to drive the cam 510 to rotate.
As shown in fig. 4, through the above technical solution, the lifting rod 240 can be connected to or disconnected from the collection cylinder 310; when the collection tube 310 needs to be pushed to extend out of the outer tube 110, the lifting rod 240 moves towards the direction close to the second end 130, finally extends into the groove 430 and is abutted against the inner bottom wall of the groove 430, then the lifting rod 240 stops moving, then the third motor 420 is started, the rotating shaft 520 drives the cam 510 to rotate, the protruding portion of the cam 510 abuts against the connecting plate 480 to push the sliding block 470 to slide out of the second through hole 460 and finally extends into the annular gap 440, and thus the lifting rod 240 is prevented from being separated from the collection tube 310; the first driving component is continuously started to drive the lifting rod 240 to continuously move towards the direction close to the first end 120, so as to push the collection tube 310 to extend out of the outer sleeve 110; after the collection is completed, the second driving component can be started again to drive the lifting rod 240 to move towards the direction close to the second end 130, so that the sliding block 470 is abutted against the upper wall of the annular gap 440, and the collection cylinder 310 is pulled to drive the collection cylinder 310 to be retracted into the outer sleeve 110; when the collection tube 310 is completely retracted into the outer tube 110 (i.e. the baffle 320 is abutted against the elastic inner ring plate 330), the third motor 420 is started again to drive the cam 510 to rotate, so that the non-protruding portion of the cam 510 is abutted against the connecting plate 480, and the slider 470 is retracted into the second through hole 460 under the action of the spring 490, and at this time, the lifting rod 240 is disengaged from the collection tube 310, so that the collection tube can be pulled out from the groove 430 normally.
Meanwhile, the underwater continuous sampling device further comprises a controller (such as a single-chip microcomputer), and the controller is used for controlling the first motor 250, the second motor 260 and the third motor 420 to start and stop in a matched mode, so that the acquisition operation is achieved. And the controller, the first driving part, the second driving part, the third motor 420, the circular plate 270, the annular plate 280 and the universal ball 350 are all above the water surface in normal use, thereby ensuring the normal operation of the above parts.
Specifically, the first connection seat 190 and the second connection seat 210 are both disposed near the second end 130; a sealing plate 140 for sealing the outer sleeve 110 is arranged at the first end 120; the sealing plate 140 is provided with a round hole 150; the collection canister 310 can be diametrically opposed to the circular aperture 150 and can extend or retract from the circular aperture 150.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (10)
1. An underwater continuous sampling device is characterized by comprising an outer sleeve, an inner shaft, a collection assembly, a first driving component, a second driving component, a screw rod, a movable seat, a first connecting seat, a second connecting seat and a lifting rod; the inner shaft is rotatably arranged in the outer sleeve; the inner shaft and the outer sleeve share a central axis; the number of the acquisition components is a plurality; the plurality of acquisition assemblies are uniformly arranged around the inner shaft; the outer sleeve includes opposite first and second ends; the acquisition assembly is proximate the first end; the acquisition assembly comprises an acquisition cylinder connected to the inner shaft; the first connecting seat and the second connecting seat are both connected to the inner wall of the outer sleeve; the two ends of the screw rod are respectively rotatably arranged on the first connecting seat and the second connecting seat in a penetrating way; the screw rod is parallel to the inner shaft; the movable seat is provided with a threaded hole; the movable seat is sleeved on the screw rod in a matched manner through the threaded hole; the lifting rod is fixedly arranged on one side of the movable seat, which is close to the inner wall of the outer sleeve in a penetrating manner; the second connecting seat is closer to the first end than the first connecting seat; the lifting rod is parallel to the screw rod; the lifting rod is arranged on the second connecting seat in a sliding penetrating manner; one end of the lifting rod, which is close to the first end, is used for being connected with or separated from the collecting cylinder; the first driving component is used for driving the screw rod to rotate so as to drive the movable seat to move and drive the lifting rod to lift, so that the collecting cylinder connected with the lifting rod is driven to extend out of the first end or retract into the outer sleeve; the second driving part is used for driving the inner shaft to rotate so as to drive the collection cylinder to rotate; the central axis of the collection cylinder is parallel to the inner shaft.
2. An underwater continuous sampling device as in claim 1 further comprising a first connection sleeve and a second connection sleeve; the first connecting sleeve and the second connecting sleeve are both connected to the inner wall of the outer sleeve; the first connecting sleeve and the second connecting sleeve are coaxial with the outer sleeve; the inner shaft sequentially rotates to penetrate through the first connecting sleeve and the second connecting sleeve.
3. An underwater continuous sampling device as in claim 1 wherein the first drive means comprises a first motor, a connecting rod, a first bevel gear and a second bevel gear; the connecting rod is coaxially connected to one end of the screw rod, which is close to the second end; the first bevel gear is coaxially connected to the connecting rod; the first motor is arranged on the outer wall of the outer sleeve and is close to the second end; the output shaft of the first motor movably penetrates through the outer sleeve and extends into the outer sleeve; the output shaft of the first motor is coaxially connected with the second bevel gear; the second bevel gear is meshed with the first bevel gear.
4. An underwater continuous sampling device as in claim 1 wherein the second drive means comprises a second motor, a worm and a worm gear; the worm is coaxially connected to one end of the inner shaft, which is close to the second end; the second motor is arranged on the outer wall of the outer sleeve and is close to the second end; the output shaft of the second motor movably penetrates through the outer sleeve and extends into the outer sleeve; the output shaft of the second motor is coaxially connected with the worm gear; the worm wheel is meshed with the worm.
5. The underwater continuous sampling device of claim 4, further comprising a circular plate and an annular plate; the circular plate is vertically connected with one end, close to the second end, of the inner shaft; the circular plate and the inner shaft share the central axis; the annular plate is connected to the inner wall of the outer sleeve and is close to the second end; the annular plate and the inner shaft share a central axis; the circular plate is positioned between the annular plate and the second end; the inner shaft moves through the annular plate; a plurality of universal balls are arranged on one side of the circular plate, which faces the annular plate, and the universal balls are uniformly arranged around the inner shaft; the ball of the universal ball is in rolling contact with the annular plate.
6. The underwater continuous sampling device of claim 1, wherein the collection assembly further comprises a sliding sleeve; the sliding sleeve is connected with the inner shaft; the sliding sleeves of the collecting assemblies are distributed in a central symmetry mode by the inner shaft; the central axis of the sliding sleeve is parallel to the inner shaft; the collecting cylinder is arranged in the sliding sleeve in a sliding way; one end of the collection tube, which is away from the second end, is open.
7. The underwater continuous sampling device of claim 6, wherein a baffle is disposed at an end of the collection canister proximate the second end; an elastic inner annular plate is arranged around the inner wall of the outer sleeve; the elastic inner ring plate and the baffle are perpendicular to the inner shaft; the elastic inner ring plate can be abutted against the baffle, and when the elastic inner ring plate is abutted against the baffle, the collecting cylinder is retracted into the outer sleeve.
8. The underwater continuous sampling device of claim 7, further comprising a slider, a web, a spring and a third drive member; a sleeve seat is arranged on one side of the baffle plate, which is close to the second end; the end wall, close to the second end, of the sleeve seat is provided with a groove; the cross section of the groove is circular; an annular gap which is coaxial with the groove is formed in the inner wall of the groove;
the lifting rod is axially communicated with the first through hole; a second through hole which is communicated with the first through hole is formed in the lifting rod, which is close to the first end; the central axis of the second through hole is perpendicular to the central axis of the first through hole; the sliding block is in sliding fit with the second through hole; one end of the sliding block, which is positioned in the first through hole, is connected with a connecting plate; one end of the spring connected with the connecting plate is connected with the inner wall of the first through hole, and the other end of the spring is connected with the connecting plate; the elastic force of the spring enables the sliding block to have a trend of being received in the second through hole; the lifting rod can move to extend into the groove and is abutted against the inner bottom wall of the groove; when the lifting rod stretches into the groove, the third driving part is used for driving the sliding block to stretch out of the second through hole and stretch into the annular gap.
9. The underwater continuous sampling device of claim 8, wherein the inner diameter of the recess is greater than the outer diameter of the lifter; the third driving part comprises a third motor, a rotating shaft and a cam; the third motor is arranged at one end of the lifting rod, which is close to the second end; the rotating shaft is rotatably arranged through the first through hole and is coaxial with the first through hole; one end of the rotating shaft, which is far away from the third motor, is connected with the cam; the cam is abutted with one side, away from the sliding block, of the connecting plate; the third motor is used for driving the rotating shaft to rotate so as to drive the cam to rotate.
10. An underwater continuous sampling device as in claim 1 wherein the first connection seat and the second connection seat are each disposed proximate the second end.
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