CN106979868B - Triggering type underwater sediment sampling device - Google Patents
Triggering type underwater sediment sampling device Download PDFInfo
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- CN106979868B CN106979868B CN201710309204.7A CN201710309204A CN106979868B CN 106979868 B CN106979868 B CN 106979868B CN 201710309204 A CN201710309204 A CN 201710309204A CN 106979868 B CN106979868 B CN 106979868B
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- 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
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- 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
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Abstract
The invention belongs to the field of sampling equipment and discloses a triggering type underwater sediment sampling device which comprises a frame, a triggering combination mechanism and a sampling mechanism, wherein the triggering combination mechanism comprises a power storage mechanism and a triggering mechanism, the power storage mechanism comprises a first shell, a power storage spring, a hand wheel, a power storage rocker, a gear and a rack, and the triggering mechanism comprises a second shell and a first limiting mechanism; the sampling mechanism comprises a sampling cylinder, a connecting rod mechanism, a sealing piece and a second limiting mechanism, wherein the sealing piece is hinged on the sampling cylinder and is also hinged on the connecting rod mechanism so as to be used for blocking the bottom end of the sampling cylinder, and the second limiting mechanism is installed on the frame so as to be used for limiting the displacement of the connecting rod mechanism. The cooperation of the power storage mechanism and the triggering mechanism of the sampling device can enable the sampling cylinder to go deep into the water to sample, the sampling is convenient, the connecting rod mechanism can drive the sealing piece to rotate to seal the sampling cylinder, the sealing action can be accurately and effectively realized, and the damage of hard substances to the sampling cylinder is not required to be worried.
Description
Technical Field
The invention belongs to the field of sampling equipment, and particularly relates to a trigger type underwater sediment sampling device.
Background
The underwater sediment sampling has important significance for environmental monitoring and resource exploration, so that the underwater sediment sampling device which is convenient to assemble and disassemble, simple and effective, beneficial to field operation and high in reliability is needed, and meanwhile, the requirements of large sampling depth and small disturbance to underwater environment are met. In the existing sediment collector, the grab bucket sediment sampler and the box sediment sampler have larger volumes, have larger disturbance to the water bottom, and are difficult to realize nondestructive sealing sampling; the depth of the common rod-inserted sediment sampler and the columnar sediment sampler inserted into soil is limited, so that the rod-inserted sediment sampler is only suitable for softer sediment; the vibration sampler can collect the sediment with larger hardness, but has larger volume and inconvenient underwater energy supply. In addition, although the existing purely mechanical underwater sediment sampling device does not need external power drive such as electric power, sampling is automatically triggered when the sampling device reaches the water bottom, sampling failure or damage to a sampling cylinder due to hard substances is easily caused under the condition that whether the sampling position is suitable or not is unclear due to the complexity of the underwater environment.
Disclosure of Invention
Aiming at the defects or improvement demands of the prior art, the invention provides a trigger type underwater sediment sampling device which has strong reliability, the elastic force is accumulated by a power accumulating spring of a power accumulating mechanism, the elastic force of a spring is released by a trigger mechanism to drive a sampling mechanism to move, and the sampling mechanism is used for sampling, so that the sampling work of the sampling device is controlled.
In order to achieve the above object, according to the present invention, there is provided a trigger type underwater sediment sampling device, characterized by comprising a frame, a power storage mechanism, a trigger mechanism and a sampling mechanism, wherein,
the power storage mechanism comprises a first shell, a power storage spring, a hand wheel, a power storage rocker, a gear and a rack, the trigger mechanism comprises a second shell and a first limiting mechanism arranged on the second shell, the first shell and the second shell are fixedly arranged on the rack, a top cover is arranged at the top end of the first shell, the top end of the power storage spring is fixedly arranged at the bottom end of the top cover, the power storage rocker is arranged on the hand wheel, the power storage rocker is rotatably arranged on the second shell, the first limiting mechanism is used for limiting the rotation of the power storage rocker or releasing the limitation on the rotation of the power storage rocker, the gear is arranged on the power storage rocker, and the rack is meshed with the gear;
the sampling mechanism comprises a sampling cylinder, a connecting rod mechanism, a sealing plate and a second limiting mechanism, wherein the top end of the sampling cylinder is respectively connected with the bottom end of the power storage spring and the bottom end of the rack, the connecting rod mechanism is installed on the frame, the sealing plate is hinged to the bottom of the sampling cylinder and is also hinged to the connecting rod mechanism, the sealing plate is used for sealing the bottom end of the sampling cylinder in a matched manner after sampling, and the second limiting mechanism is installed on the frame and used for limiting displacement of the connecting rod mechanism.
Preferably, the first limiting mechanism comprises a ratchet wheel, a pawl, a deflector rod, a hinge rod, a limiting box, a push rod, a trigger motor and a trigger spring, wherein the ratchet wheel is installed on the power storage rocker, the pawl is installed at one end of the deflector rod and used for controlling rotation of the ratchet wheel, the deflector rod is installed on the hinge rod, the hinge rod is hinged on the inner wall of the second shell through a hinge shaft which is vertically arranged, the limiting box is installed on the second shell, the other end of the deflector rod penetrates through the limiting box, a notch is formed in the top end of the limiting box, one end of the push rod is connected to a rotating shaft of the trigger motor, the other end of the push rod stretches into the limiting box, a first limiting boss matched with the notch is arranged at a position corresponding to the notch, and the trigger spring is arranged between the boss and the deflector rod in a penetrating mode and used for pushing the deflector rod to rotate around the hinge shaft, so that rotation of the ratchet wheel is limited or the pawl releases the rotation of the ratchet wheel.
Preferably, the link mechanism includes a first link, a second link and a third link, the first link is vertically disposed and passes through the frame, a second limit boss is disposed at an upper end of the first link for limiting a downward movement stroke of the first link, an upper end of the second link is hinged to a lower end of the first link, an upper end of the third link is hinged to a lower end of the second link, and a lower end of the third link is hinged to the sealing plate.
Preferably, the second limiting mechanism comprises an envelope and an expansion buckle, the envelope is fixedly mounted on the frame, the expansion buckle is arranged in the envelope, the expansion buckle is provided with a large end and a small end, the first connecting rod passes through the expansion buckle, and a plurality of transverse grooves are formed in the longitudinal direction of the first connecting rod and used for being matched with the small end of the expansion buckle to limit the movement of the first connecting rod.
Preferably, a spring support rod is arranged upwards at the top end of the sampling cylinder, the spring support rod penetrates through a top cover at the top end of the first shell, and the power storage spring is arranged on the spring support rod in a penetrating mode.
Preferably, the frame includes the support frame and installs jointly last supporting platform, well supporting platform and the lower supporting platform on the support frame, second shell and first shell are installed respectively in on the supporting platform, hold the power spring and pass well supporting platform, be provided with on the lower supporting platform and be convenient for the through-hole that the sampling tube removed.
Preferably, the middle support platform and the lower support platform are connected together by a plurality of middle support rods.
Preferably, the sampling tube comprises an outer tube and an inner tube, the outer tube comprises a left half tube and a right half tube which are connected together through a hinge, and a supporting boss for receiving the inner tube is arranged on the inner wall of the outer tube.
Preferably, an underwater camera is arranged on the stand.
In general, the above technical solutions conceived by the present invention, compared with the prior art, enable the following beneficial effects to be obtained:
1) This sampling device hold power mechanism and trigger mechanism cooperation, drive the sampling tube through rack and pinion mechanism and shift up and compress hold power spring and hold the power, through trigger motor control push rod and driving lever motion, can make ratchet pawl mechanism realize the restriction to ratchet pivoted and remove ratchet pivoted restriction, let the sampling tube can go deep into the submarine and sample, the sampling is convenient, link mechanism can drive the sealing piece and rotate and seal the sampling tube moreover, can realize sealing action effectively accurately, need not worry the destruction of hard material to the sampling tube.
2) Through the underwater camera, after selecting a proper sampling position, the sampling device can be triggered through electric control, so that the sampling work of the sampling device is controlled on the water surface in real time, and the reliability and the accuracy of the whole sampling process are ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the trigger mechanism of the present invention;
FIG. 3 is a schematic diagram of a sampling mechanism according to the present invention;
FIG. 4 is a detailed schematic of the damping mechanism of the present invention;
fig. 5 is a schematic structural view of the expansion buckle in the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Referring to fig. 1 to 5, a trigger type underwater sediment sampling device comprises a frame 37, a power storage mechanism 3, a trigger mechanism 4 and a sampling mechanism 38, wherein,
the power storage mechanism 3 comprises a first shell 2, a power storage spring 19, a hand wheel 5, a power storage rocker 6, a gear and a rack 1, the trigger mechanism 4 comprises a second shell 22 and a first limiting mechanism installed on the second shell 22, the first shell 2 and the second shell 22 are fixedly installed on a rack 37, a top cover 39 is arranged at the top end of the first shell 2, the top end of the power storage spring 19 is fixedly installed at the bottom end of the top cover 39, the power storage rocker 6 is installed on the hand wheel 5, the power storage rocker 6 is rotatably installed on the second shell 22, the first limiting mechanism is used for limiting the rotation of the power storage rocker 6 or releasing the limitation on the rotation of the power storage rocker 6, the gear is installed on the power storage rocker 6, and the rack 1 is meshed with the gear;
the sampling mechanism 38 comprises a sampling cylinder, a connecting rod mechanism, a sealing plate 12 and a second limiting mechanism 9, wherein the top end of the sampling cylinder is respectively connected with the bottom end of the power storage spring 19 and the bottom end of the rack 1, the connecting rod mechanism is installed on the frame 37, the sealing plate 12 is hinged to the bottom of the sampling cylinder and is also hinged to the connecting rod mechanism, the sealing plate is used for sealing the bottom end of the sampling cylinder in a matched manner after sampling, and the second limiting mechanism 9 is installed on the frame 37 and used for limiting displacement of the connecting rod mechanism.
As one preferable example, the first limit mechanism includes a ratchet 23, a pawl 24, a shift lever 25, a hinge lever, a limit case 36, a push rod 27, a trigger motor 28, and a trigger spring 26, the ratchet 23 is mounted on the power storage rocker 6, the pawl 24 is mounted on one end of the shift lever 25 for controlling rotation of the ratchet 23, the shift lever 25 is mounted on the hinge lever, the hinge lever is hinged on an inner wall of the second housing 22 by a hinge shaft provided vertically, the limit case 36 is mounted on the second housing 22, the other end of the shift lever 25 passes through the limit case 36, a notch is provided at a top end of the limit case 36, one end of the push rod 27 is connected on a rotation shaft of the trigger motor 28, the other end of the push rod 27 extends into the limit case 36 and is provided with a first limit boss 31 engaged with the notch at a position corresponding to the notch, the trigger spring 26 is mounted on the push rod 27 and is located between the boss and the push lever 25 for releasing the limit of rotation of the ratchet 23 about the hinge shaft 24. In addition, as another preferable mode, the first limiting mechanism may adopt a structure that a cylinder is matched with a baffle plate, the cylinder is mounted on the second housing 22, the baffle plate is mounted on the power storage rocker 6, and the rotation of the power storage rocker 6 can be locked and unlocked through the movement of a piston rod.
Further, the link mechanism comprises a first link 7, a second link 10 and a third link 11, the first link 7 is vertically arranged and penetrates through the frame 37, a second limiting boss 32 is arranged at the upper end of the first link 7 and used for limiting the downward moving stroke of the first link 7, the upper end of the second link 10 is hinged to the lower end of the first link 7, the upper end of the third link 11 is hinged to the lower end of the second link 10, and the lower end of the third link 11 is hinged to the sealing plate 12. Preferably, the second limiting mechanism 9 includes a sleeve 33 and an expansion buckle 34, the sleeve 33 is fixedly mounted on the frame 37, the expansion buckle 34 is disposed in the sleeve 33, the expansion buckle 34 has a large end and a small end, and the first link 7 passes through the expansion buckle 34 and is provided with a plurality of transverse grooves 35 along the longitudinal direction of the first link 7 for limiting the movement of the first link 7 in cooperation with the small end of the expansion buckle 34. The second limit boss 32, when moved downwardly into contact with the envelope 33, limits the further downward movement of the first link 7.
In addition, the second limiting mechanism 9 can also select a structure of matching the electric device with the clamp, and the clamp clamps the first connecting rod 7 through the electric device control clamp, so that limiting is performed when the first connecting rod 7 moves to a set position.
Further, a spring support rod 21 is provided upward at the top end of the sampling tube, and the spring support rod 21 passes through a top cover 39 at the top end of the first housing 2, and the power storage spring 19 is installed on the spring support rod 21 in a penetrating manner.
Further, the frame 37 includes a support 18, and an upper support platform 20, a middle support platform 17 and a lower support platform 15 mounted on the support 18, where the support 18 encloses a tetrahedron shape, the second housing 22 and the first housing 2 are mounted on the middle support platform 17, the power spring 19 passes through the middle support platform 17, and a through hole for facilitating movement of the sampling tube is provided on the lower support platform 15. In addition, a nylon rail wheel 13 is also arranged on the supporting frame 18, and the nylon rail wheel 13 is in contact with the outer wall of the sampling tube, so that the shaking of the sampling tube can be prevented, and the up-and-down movement of the sampling tube can be guided.
Further, the middle support platform 17 and the lower support platform 15 are connected together by a plurality of middle support rods 16.
Further, the sampling tube comprises an outer tube 30 and an inner tube, the outer tube 30 comprises a left half tube 8 and a right half tube 29 which are connected together through a hinge, and a supporting boss for receiving the inner tube is arranged on the inner wall of the outer tube 30.
Further, an underwater camera is provided on the frame 37, so that the underwater condition can be conveniently known.
In order to prevent the sampling tube from falling down in the sampling process, the sealing plate 12 encounters resistance to drive the connecting rod mechanism to seal in advance, the second limiting mechanism 9 is arranged on the outer side wall of the outer cylinder, meanwhile, the transverse groove 35 is additionally arranged on the side surface of the first connecting rod 7, the expansion buckle 34 of the second limiting mechanism 9 is a rigid sheet, before sampling, due to the damping effect of the expansion buckle 34, when the sealing plate 12 encounters smaller resistance to drive the third connecting rod 11 to rotate in the sampling falling process, the first connecting rod 7 can only move downwards unidirectionally and can be locked up by the small end of the expansion buckle 34 entering the transverse groove 35, so that the sealing is not carried out in advance, and after the sampling is finished, the second limiting mechanism 9 is manually unloaded.
The sealing piece 12 is in a flake shape, the sealing piece 12 is kept in a vertical state before sampling, in the sampling process, the sealing piece 12 gradually blocks the outer cylinder 30 of the sampling cylinder, the sealing piece 12 is embedded together to realize a sealing effect, and the sealing piece 12 is kept in a sealing state all the time when the sampling is completed and the whole device is extracted on the water surface.
Before the sampling into the water bottom is formally performed, the left half cylinder 8 and the right half cylinder 29 are opened, the inner cylinder is put into the outer cylinder 30, then the left half cylinder 8 and the right half cylinder 29 are enclosed into a cylinder shape, and then the cylinder shape is fixed by a locking device. After the preliminary preparation work is completed, the sampling work is formally started.
Firstly, in the power accumulating stage, enough elastic potential energy is needed to be reserved for the power accumulating spring 19, the hand wheel 5 is rotated on a ship by manpower, the gear 3 drives the rack 1 to start working under the rotation drive of the power accumulating rocker 6, so that the rack 1 drives the sampling cylinder to move upwards, the power accumulating spring 19 is compressed to accumulate power, after the power accumulating is finished, the deflector rod 25 is rocked to dial the pawl 24 onto the ratchet wheel 23, at the moment, the reverse rotation of the ratchet wheel 23 and the power accumulating rocker 6 is locked by the pawl 24, and then the gear 3 on the power accumulating rocker 6 is also reversely locked, so that the reverse rotation of the power accumulating rocker 6 and the rebound of the power accumulating spring 19 are prevented.
Then, the stage of releasing the sampling equipment is carried out, when the whole sampling device is placed into water to slowly fall into the water, the underwater condition can be distinguished through a matched underwater camera, when the current underwater sampling environment is poor, the sampling ship continues to advance until a proper sampling position is found, the sampling ship starts to land, three supporting legs 14 are inserted into underwater sediments, and water surface control personnel wait for giving a sampling instruction.
Then, in the stage of triggering sampling, after a signal is transmitted to the triggering mechanism through a cable, the triggering mechanism receives a sampling instruction, the triggering motor 28 of the triggering part controls the push rod 27 to rotate by a certain angle, so that the first limit boss 31 on the push rod 27 rotates out of the notch of the limit box 36, at the moment, the trigger spring 26 which is always in a compressed state drives the push rod 27 to pop out forwards, the pushing force acts on the deflector rod 25, so that the deflector rod 25 rotates and drives the pawl 24 on the ratchet wheel 23 to leave the ratchet wheel 23, the reverse rotation of the power storage rocker 6 is unlocked, the power storage spring 19 releases elastic potential energy, the whole sampling mechanism moves downwards under the dual actions of gravity and the elastic potential energy of the power storage spring 19, the left half cylinder 8, the right half cylinder 29 and the inner cylinder in the inside are rapidly ejected into the water bottom sediment, and after the water bottom sediment enters a certain depth, the first connecting rod 7 is provided with a second limit boss 32 at the topmost end, the second limit boss 32 contacts with the envelope 33, so that the first connecting rod 7 does not move downwards any more, and the sampling cylinder still moves downwards continuously, so that the first connecting rod 7 and the connecting rod 7 moves downwards relatively to seal the connecting rod 10 and the third connecting rod 11.
And finally, in the sampling completion stage, when the underwater sampling work is completed and the whole sampling device is lifted to a ship through a cable, the inner cylinder with the collected sediment with the preset capacity is taken out, then the inner cylinder is replaced, the power storage spring 19 can be subjected to power storage again, meanwhile, the envelope 33 is separated from the expansion buckle 34, so that the expansion buckle 34 releases the first connecting rod 7, and then the first connecting rod 7 is moved to the initial position.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (8)
1. A trigger type underwater sediment sampling device is characterized by comprising a frame, a force storage mechanism, a trigger mechanism and a sampling mechanism, wherein,
the power storage mechanism comprises a first shell, a power storage spring, a hand wheel, a power storage rocker, a gear and a rack, the trigger mechanism comprises a second shell and a first limiting mechanism arranged on the second shell, the first shell and the second shell are fixedly arranged on the rack, a top cover is arranged at the top end of the first shell, the top end of the power storage spring is fixedly arranged at the bottom end of the top cover, the power storage rocker is arranged on the hand wheel, the power storage rocker is rotatably arranged on the second shell, the first limiting mechanism is used for limiting the rotation of the power storage rocker or releasing the limitation on the rotation of the power storage rocker, the gear is arranged on the power storage rocker, and the rack is meshed with the gear;
the sampling mechanism comprises a sampling cylinder, a connecting rod mechanism, a sealing plate and a second limiting mechanism, wherein the top end of the sampling cylinder is respectively connected with the bottom end of the power storage spring and the bottom end of the rack, the connecting rod mechanism is arranged on the frame, the sealing plate is hinged to the bottom of the sampling cylinder and is also hinged to the connecting rod mechanism, so that the bottom end of the sampling cylinder is blocked by being matched with the connecting rod mechanism after sampling, and the second limiting mechanism is arranged on the frame, so that the displacement of the connecting rod mechanism is limited;
the first limiting mechanism comprises a ratchet wheel, a pawl, a deflector rod, a hinge rod, a limiting box, a push rod, a trigger motor and a trigger spring, wherein the ratchet wheel is installed on the power storage rocker, the pawl is installed at one end of the deflector rod and used for controlling rotation of the ratchet wheel, the deflector rod is installed on the hinge rod, the hinge rod is hinged on the inner wall of the second shell through a hinge shaft which is vertically arranged, the limiting box is installed on the second shell, the other end of the deflector rod penetrates through the limiting box, a notch is formed in the top end of the limiting box, one end of the push rod is connected to a rotating shaft of the trigger motor, the other end of the push rod stretches into the limiting box, a first limiting boss matched with the notch is arranged at the position corresponding to the notch, and the trigger spring is installed on the push rod in a penetrating mode and located between the boss and the deflector rod and used for pushing the deflector rod to rotate around the hinge shaft, so that the ratchet wheel is limited by rotation of the ratchet wheel or the pawl is released from being limited by rotation of the ratchet wheel.
2. The triggered underwater sediment sampling device of claim 1, wherein the link mechanism comprises a first link, a second link and a third link, the first link is vertically disposed and passes through the frame, a second limit boss is disposed at an upper end of the first link for limiting a downward movement stroke of the first link, an upper end of the second link is hinged at a lower end of the first link, an upper end of the third link is hinged at a lower end of the second link, and a lower end of the third link is hinged at the sealing plate.
3. The triggered underwater sediment sampling device as claimed in claim 2, wherein the second limit mechanism comprises a jacket fixedly installed on the frame and an expansion buckle provided in the jacket, the expansion buckle having a large end and a small end, the first link passing through the expansion buckle and being provided with a plurality of transverse grooves along a longitudinal direction of the first link for limiting the movement of the first link in cooperation with the small end of the expansion buckle.
4. The triggered underwater sediment sampling device of claim 1, wherein a spring support rod is provided upwardly at the top end of the sampling tube and passes through the top cover at the top end of the first housing, and the power storage spring is installed on the spring support rod in a penetrating manner.
5. The triggered underwater sediment sampling device of claim 1, wherein the frame comprises a supporting frame, an upper supporting platform, a middle supporting platform and a lower supporting platform which are mounted on the supporting frame together, the second shell and the first shell are mounted on the middle supporting platform respectively, the power accumulating spring penetrates through the middle supporting platform, and a through hole which is convenient for the movement of the sampling cylinder is arranged on the lower supporting platform.
6. The triggered underwater deposition sampling device of claim 5, wherein the middle support platform and the lower support platform are connected together by a plurality of middle support rods.
7. The triggered underwater sediment sampling device of claim 1, wherein the sampling tube comprises an outer tube and an inner tube, the outer tube comprises a left half tube and a right half tube connected together by a hinge, and the inner wall of the outer tube is provided with a supporting boss for receiving the inner tube.
8. A triggered underwater sediment sampling device as claimed in claim 1 wherein the frame is provided with an underwater camera.
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