CN106979868B - Triggering type underwater sediment sampling device - Google Patents

Abstract

The invention belongs to the field of sampling equipment, and discloses a trigger-type underwater sediment sampling device, which includes a frame, a trigger combination mechanism and a sampling mechanism. The trigger combination mechanism includes a power storage mechanism and a trigger mechanism. The power storage mechanism includes a first shell, The power storage spring, handwheel, power storage rocker, gear and rack, the trigger mechanism includes the second shell and the first limit mechanism; the sampling mechanism includes the sampling cylinder, the connecting rod mechanism, the sealing piece and the second limit mechanism, the sealing The piece is hinged on the sampling cylinder and is also hinged on the link mechanism to block the bottom end of the sampling cylinder, and the second limit mechanism is installed on the frame to limit the connecting rod mechanism. Displacement of the rod mechanism. The combination of the power storage mechanism and the trigger mechanism of the sampling device can allow the sampling cylinder to go deep into the bottom of the water for sampling, which is convenient for sampling, and the connecting rod mechanism can drive the sealing piece to rotate to seal the sampling cylinder, which can accurately and effectively realize the sealing action without worrying about the hardness Substance damage to sampling cartridge.

Description

A trigger type underwater sediment sampling device

technical field

The invention belongs to the field of sampling equipment, and more specifically relates to a trigger type underwater sediment sampling device.

Background technique

Bottom sediment sampling is of great significance for environmental monitoring and resource exploration. Therefore, there is a need for a bottom sediment sampling device that is easy to disassemble, simple and effective, easy to operate in the field, and highly reliable. , The requirements for less disturbance to the underwater environment. Among the existing sediment collectors, the grab-type sediment sampler and the box-type sediment sampler are relatively large in size and cause great disturbance to the bottom of the water, making it difficult to achieve non-destructive and sealed sampling; the general rod-inserted sediment sampler, Columnar sediment samplers have a limited depth of insertion into the soil and are only suitable for soft sediments; vibrating samplers can collect hard sediments, but they are large in size and inconvenient for underwater energy supply. In addition, although the current purely mechanical underwater sediment sampling device does not require external power such as electricity, it automatically triggers sampling when the sampling device reaches the bottom. Due to the complexity of the underwater environment, it is not clear whether the sampling position is appropriate. It is easy to cause sampling failure or damage the sampling cylinder when encountering hard substances.

Contents of the invention

Aiming at the above defects or improvement needs of the prior art, the present invention provides a trigger-type underwater sediment sampling device, which has high reliability, accumulates elastic force through the power storage spring of the power storage mechanism, and releases the elastic force of the spring to drive the trigger mechanism. The sampling mechanism moves, and the sampling mechanism performs sampling, thereby realizing the control of the sampling work of the sampling device.

In order to achieve the above object, according to the present invention, a trigger type underwater sediment sampling device is provided, which is characterized in that it includes a frame, a power storage mechanism, a trigger mechanism and a sampling mechanism, wherein,

The power storage mechanism includes a first housing, a power storage spring, a hand wheel, a power storage rocker, a gear and a rack, and the trigger mechanism includes a second housing and a first limit mechanism installed on the second housing , both the first shell and the second shell are fixedly installed on the frame and the top of the first shell is provided with a top cover, and the top end of the power storage spring is fixedly mounted on the bottom of the top cover, The power storage rocker is installed on the hand wheel, the power storage rocker is rotatably mounted on the second housing, and the first limit mechanism is used to limit the rotation of the power storage rocker or release To limit the rotation of the power storage rocker, the gear is installed on the power storage rocker, and the rack meshes with the gear;

The sampling mechanism includes a sampling cylinder, a linkage mechanism, a sealing sheet and a second limit mechanism, the top of the sampling cylinder is respectively connected to the bottom end of the power storage spring and the bottom end of the rack, and the linkage mechanism is installed On the frame, the sealing sheet is hinged on the bottom of the sampling cylinder and is also hinged on the linkage mechanism, so as to cooperate with the linkage mechanism to seal the sampling cylinder after sampling. At the bottom end, the second limiting mechanism is installed on the frame to limit the displacement of the link mechanism.

Preferably, the first limit mechanism includes a ratchet, a pawl, a lever, a hinged lever, a limit box, a push rod, a trigger motor and a trigger spring, the ratchet is mounted on the power storage rocker, and the The ratchet is mounted on one end of the driving rod for controlling the rotation of the ratchet wheel, the driving rod is mounted on the hinged rod, and the hinged rod is hinged on the second On the inner wall of the shell, the limit box is installed on the second shell, the other end of the driving rod passes through the limit box, the top of the limit box is provided with a gap, and the push rod One end is connected to the rotating shaft of the trigger motor, the other end of the push rod protrudes into the limit box and the end is provided with a first limit protrusion cooperating with the notch at a position corresponding to the notch platform, the trigger spring is mounted on the push rod and is located between the boss and the driving rod, so as to push the driving rod to rotate around the hinge axis, so that the pawl The rotation of the ratchet is restricted or the ratchet is released from restricting the rotation of the ratchet.

Preferably, the link mechanism includes a first link, a second link and a third link, the first link is arranged vertically and passes through the frame, and the upper end of the first link is arranged There is a second limiting boss for limiting the downward movement of the first connecting rod, the upper end of the second connecting rod is hinged at the lower end of the first connecting rod, and the third connecting rod The upper end is hinged to the lower end of the second connecting rod, and the lower end of the third connecting rod is hinged to the sealing piece.

Preferably, the second limiting mechanism includes an envelope and an expansion buckle, the envelope is fixedly installed on the frame, the expansion buckle is arranged in the envelope, the expansion buckle has a large end and a small end, The first connecting rod passes through the expansion buckle and is provided with a plurality of transverse grooves along the longitudinal direction of the first connecting rod, for cooperating with the small end of the expansion buckle to limit the movement of the first connecting rod .

Preferably, the top of the sampling cylinder is upwardly provided with a spring support rod and the spring support rod passes through the top cover of the top of the first housing, and the storage spring is mounted on the spring support rod.

Preferably, the frame includes a support frame and an upper support platform, a middle support platform and a lower support platform that are jointly installed on the support frame, and the second shell and the first shell are respectively installed on the middle support platform , the power storage spring passes through the middle support platform, and the lower support platform is provided with a through hole to facilitate the movement of the sampling cylinder.

Preferably, the middle support platform and the lower support platform are connected together by a plurality of intermediate support rods.

Preferably, the sampling cylinder includes an outer cylinder and an inner cylinder, the outer cylinder includes a left half cylinder and a right half cylinder connected together by a hinge, the inner wall of the outer cylinder is provided with a support for receiving the inner cylinder Boss.

Preferably, an underwater camera is arranged on the frame.

Generally speaking, compared with the prior art, the above technical solutions conceived by the present invention can achieve the following beneficial effects:

1) The power storage mechanism of the sampling device cooperates with the trigger mechanism. The rack and pinion mechanism drives the sampling cylinder to move upwards and compresses the power storage spring to store power. By triggering the motor to control the movement of the push rod and the lever, the ratchet pawl mechanism can Realize the restriction on the rotation of the ratchet and remove the restriction on the rotation of the ratchet mechanism, so that the sampling cylinder can go deep into the bottom of the water for sampling, which is convenient for sampling, and the connecting rod mechanism can drive the sealing piece to rotate to seal the sampling cylinder, which can accurately and effectively realize the sealing action. There is no need to worry about damage to the sampling cylinder by hard substances.

2) Through the underwater camera, after selecting a suitable sampling position, it can be triggered by electronic control, so as to realize the sampling work of the sampling device controlled in real time on the water surface, ensuring the reliability and accuracy of the entire sampling process.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic structural view of the trigger mechanism in the present invention;

Fig. 3 is the structural representation of sampling mechanism among the present invention;

Fig. 4 is the detailed schematic view of damping mechanism in the present invention;

Fig. 5 is a schematic structural view of the expansion buckle in the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

Referring to Figures 1 to 5, a trigger type underwater sediment sampling device includes a frame 37, a power storage mechanism 3, a trigger mechanism 4 and a sampling mechanism 38, wherein,

The power storage mechanism 3 includes a first casing 2, a power storage spring 19, a hand wheel 5, a power storage rocker 6, a gear and a rack 1, and the trigger mechanism 4 includes a second casing 22 and is installed on the second The first limit mechanism on the shell 22, the first shell 2 and the second shell 22 are fixedly installed on the frame 37 and the top of the first shell 2 is provided with a top cover 39, the power storage The top end of the spring 19 is fixedly installed on the bottom end of the top cover 39, the power storage rocker 6 is installed on the hand wheel 5, and the power storage rocker 6 is rotatably mounted on the second shell 22, The first limit mechanism is used to limit the rotation of the power storage rocker 6 or release the restriction on the rotation of the power storage rocker 6, the gear is installed on the power storage rocker 6, and the gear Bar 1 meshes with said gear;

The sampling mechanism 38 includes a sampling cylinder, a link mechanism, a sealing piece 12 and a second limit mechanism 9, and the top of the sampling cylinder is respectively connected to the bottom end of the power storage spring 19 and the bottom end of the rack 1, so that The link mechanism is installed on the frame 37, and the sealing piece 12 is hinged on the bottom of the sampling cylinder and is also hinged on the link mechanism, so as to cooperate with the link mechanism after sampling The bottom end of the sampling cylinder is blocked, and the second limit mechanism 9 is installed on the frame 37 to limit the displacement of the linkage mechanism.

As a preference, the first limit mechanism includes a ratchet 23, a pawl 24, a lever 25, a hinged lever, a limit box 36, a push rod 27, a trigger motor 28 and a trigger spring 26, and the ratchet 23 is installed on On the power storage rocker 6, the ratchet 24 is installed on one end of the driving lever 25 for controlling the rotation of the ratchet 23, and the driving lever 25 is installed on the hinged rod. The hinge rod is hinged on the inner wall of the second casing 22 through a vertically arranged hinge shaft, the limit box 36 is installed on the second casing 22, and the other end of the driving rod 25 passes through the limit Position box 36, the top of described limit box 36 is provided with breach, and one end of described push rod 27 is connected on the rotating shaft of described trigger motor 28, and the other end of described push rod 27 stretches into described limit box 36 Inside and this end is provided with a first limit boss 31 matching 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 notch. Between the driving rods 25, it is used to push the driving rod 25 to rotate around the hinge shaft, so that the pawl 24 restricts the rotation of the ratchet wheel 23 or releases the ratchet wheel 24 from the rotation of the ratchet wheel. 23 rotation limits. In addition, as another preference, the first limit mechanism can also adopt a structure in which the cylinder and the blocking plate cooperate, the cylinder is installed on the second housing 22, the blocking plate is installed on the power storage rocker 6, and the movement of the piston rod also The rotation of the power storage rocker 6 can be locked and unlocked.

Further, the link mechanism includes a first link 7, a second link 10 and a third link 11, the first link 7 is vertically arranged and passes through the frame 37, the first link The upper end of the rod 7 is provided with a second limiting boss 32 for limiting the downward movement stroke of the first connecting rod 7, and the upper end of the second connecting rod 10 is hinged on the top of the first connecting rod 7. The lower end, the upper end of the third connecting rod 11 is hinged to the lower end of the second connecting rod 10 , and the lower end of the third connecting rod 11 is hinged to the sealing piece 12 . As a preference, the second limiting mechanism 9 includes an envelope 33 and an expansion buckle 34, the envelope 33 is fixedly installed on the frame 37, the expansion buckle 34 is arranged in the envelope 33, the The expansion buckle 34 has a large end and a small end, and the first connecting rod 7 passes through the expansion buckle 34 and is provided with a plurality of transverse slots 35 along the longitudinal direction of the first connecting rod 7 for connecting with the expansion buckle 7 . The small end of the buckle 34 cooperates to limit the movement of the first connecting rod 7 . When the second limiting boss 32 moves down to contact with the envelope 33 , it can limit the first connecting rod 7 to continue moving downward.

In addition, the second limit mechanism 9 can also select the structure of the electric device to cooperate with the clamp, and the clamp is controlled by the electric device to make the clamp clamp the first connecting rod 7, so as to limit the position when the first connecting rod 7 moves to the set position.

Further, the top of the sampling cylinder is provided with a spring support rod 21 upwards, and the spring support rod 21 passes through the top cover 39 at the top of the first housing 2, and the storage spring 19 is mounted on the spring support on rod 21.

Further, the frame 37 includes a support frame 18 and an upper support platform 20, a middle support platform 17 and a lower support platform 15 which are jointly installed on the support frame 18, the support frame 18 surrounds a tetrahedron shape, and the second The shell 22 and the first shell 2 are mounted on the middle support platform 17 respectively, the power storage spring 19 passes through the middle support platform 17, and the lower support platform 15 is provided with a passage for facilitating the movement of the sampling cylinder. hole. In addition, a nylon track wheel 13 is also installed on the support frame 18, and the nylon track wheel 13 is in contact with the outer wall of the sampling cylinder, which can prevent the shaking of the sampling cylinder and guide the up and down movement of the sampling cylinder.

Further, the middle support platform 17 and the lower support platform 15 are connected together by a plurality of intermediate support rods 16 .

Further, the sampling cylinder includes an outer cylinder 30 and an inner cylinder, the outer cylinder 30 includes a left half cylinder 8 and a right half cylinder 29 connected together by a hinge, the inner wall of the outer cylinder 30 is provided with a The support boss of the inner cylinder.

Further, the frame 37 is provided with an underwater camera, which is convenient for understanding the underwater conditions.

In order to prevent the sampling cylinder from falling during the sampling process, the sealing piece 12 encounters resistance to drive the connecting rod mechanism to seal in advance, a second limit mechanism 9 is set on the outer wall of the outer cylinder, and at the same time, the first connecting rod 7 The lateral groove 35 is increased, and the expansion buckle 34 of the second limit mechanism 9 is a rigid sheet. Before sampling, due to the damping effect of the expansion buckle 34, the sealing piece 12 encounters less resistance during the sampling and falling process. When the third connecting rod 11 is driven to rotate, the first connecting rod 7 can only move downward in one direction and its upward movement will be restricted and locked by the small end of the expansion buckle 34 entering the transverse groove 35, so it will not Seal in advance, and after the sampling is finished, manually remove the second limiting mechanism 9.

The sealing piece 12 is in the shape of a thin sheet. Before sampling, the sealing piece 12 remains in a vertical state. During the sampling process, the sealing piece 12 gradually blocks the outer cylinder 30 of the sampling cylinder and fits in the Together to realize the sealing function, when the sampling is completed and the whole device is extracted on the water surface, the sealing sheet 12 remains in a sealed state.

Before formally entering the bottom of the water for sampling, open the left half cylinder 8 and the right half cylinder 29, put the inner cylinder into the outer cylinder 30, then surround the left half cylinder 8 and the right half cylinder 29 into a cylindrical shape, and then lock it The device is fixed. After the preparatory work is completed, the sampling work will officially begin.

The first is the power storage stage. It is necessary to reserve enough elastic potential energy for the power storage spring 19. Turn the hand wheel 5 on the ship by manpower. Driven by the rotation of the power storage rocker 6, the gear 3 drives the rack 1 to start working, so that the rack 1 drives the sampling cylinder to move upwards, and compresses the power storage spring 19 to store power. After the power storage is completed, shake the lever 25 to move the ratchet 24 to the ratchet 23. At this time, the reverse direction of the ratchet 23 and the power storage rocker 6 Rotational movement is locked by ratchet 24, and then the gear 3 on the power storage rocking bar 6 is also locked in reverse, thereby preventing the power storage rocking bar 6 from reversing and preventing the power storage spring 19 from rebounding.

Then there is the stage of releasing the sampling equipment. When the entire sampling device is put into the water and slowly falls into the water, the underwater conditions can be identified through the supporting underwater camera. When the current underwater sampling environment is poor, the sampling ship will continue to move forward until it is found When the sampling position is suitable, it starts to land, and the three legs 14 are inserted into the bottom sediment, waiting for the water surface control personnel to give sampling instructions.

Then there is the trigger sampling stage. When the signal is transmitted to the trigger mechanism through the cable, after the trigger mechanism receives the sampling instruction, the trigger motor 28 of the trigger part controls the push rod 27 to rotate at a certain angle, so that the first limit boss 31 on the push rod 27 Rotate out the gap of the limit box 36, the trigger spring 26 that was always in the compressed state drives the push rod 27 to eject forward, and its driving force acts on the driving rod 25, so that the driving rod 25 rotates and drives the push rod 23 on the ratchet 23. The ratchet 24 leaves the ratchet 23, the reverse rotation of the power storage rocker 6 is unlocked, the power storage spring 19 releases the elastic potential energy, and the whole sampling mechanism moves downward under the dual action of gravity and the elastic potential energy of the power storage spring 19, and the left The half cylinder 8, the right half cylinder 29 and the inner inner cylinder are quickly ejected into the bottom sediment. 32, the second limiting boss 32 is in contact with the envelope 33 so that the first connecting rod 7 no longer moves downwards, but the sampling cylinder continues to move downwards. At this time, the first connecting rod 7 and the sampling cylinder With relative movement, the second connecting rod 10 and the third connecting rod 11 drive the sealing piece 12 to seal the outer cylinder 30 .

The last is the sampling completion stage. When the underwater sampling work is completed and the entire sampling device is pulled to the ship by the cable, the inner cylinder with a predetermined volume of sediment collected is taken out, and then replaced with a new inner cylinder, and then the storage tank can be reset. The force spring 19 stores force, and at the same time, 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 back to the initial position.

It is easy for those skilled in the art to understand that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention, All should be included within the protection scope of the present invention.

Claims (8)

1. A trigger type underwater sediment sampling device is characterized in that it comprises a frame, a power storage mechanism, a trigger mechanism and a sampling mechanism, wherein, The power storage mechanism includes a first housing, a power storage spring, a hand wheel, a power storage rocker, a gear and a rack, and the trigger mechanism includes a second housing and a first limit mechanism installed on the second housing , both the first shell and the second shell are fixedly installed on the frame and the top of the first shell is provided with a top cover, and the top end of the power storage spring is fixedly mounted on the bottom of the top cover, The power storage rocker is installed on the hand wheel, the power storage rocker is rotatably mounted on the second housing, and the first limit mechanism is used to limit the rotation of the power storage rocker or release To limit the rotation of the power storage rocker, the gear is installed on the power storage rocker, and the rack meshes with the gear; The sampling mechanism includes a sampling cylinder, a linkage mechanism, a sealing sheet and a second limit mechanism, the top of the sampling cylinder is respectively connected to the bottom end of the power storage spring and the bottom end of the rack, and the linkage mechanism is installed On the frame, the sealing sheet is hinged on the bottom of the sampling cylinder and is also hinged on the linkage mechanism, so as to cooperate with the linkage mechanism to seal the sampling cylinder after sampling. At the bottom end, the second limiting mechanism is installed on the frame to limit the displacement of the linkage mechanism; The first limit mechanism includes a ratchet, a pawl, a driving lever, a hinged lever, a limit box, a push rod, a trigger motor and a trigger spring, the ratchet is installed on the power storage rocker, and the ratchet is installed One end of the driving rod is used to control the rotation of the ratchet, the driving rod is mounted on the hinged rod, and the hinged rod is hinged to the inner wall of the second housing through a vertically arranged hinge shaft , the limit box is installed on the second shell, the other end of the driving rod passes through the limit box, the top end of the limit box is provided with a gap, and one end of the push rod is connected to the On the rotating shaft of the trigger motor, the other end of the push rod extends into the limit box and this end is provided with a first limit boss that matches the notch at a position corresponding to the notch, so The trigger spring is mounted on the push rod and is located between the boss and the driving rod, so as to push the driving rod to rotate around the hinge axis, so that the pawl restricts the The rotation of the ratchet may cause the pawl to release the restriction on the rotation of the ratchet. 2. A trigger type underwater sediment sampling device according to claim 1, wherein the linkage mechanism comprises a first connecting rod, a second connecting rod and a third connecting rod, and the first connecting rod Vertically arranged and passing through the frame, the upper end of the first connecting rod is provided with a second limit boss for limiting the downward movement stroke of the first connecting rod, and the second connecting rod The upper end of the first connecting rod is hinged to the lower end of the first connecting rod, the upper end of the third connecting rod is hinged to the lower end of the second connecting rod, and the lower end of the third connecting rod is hinged to the sealing piece. 3. A kind of trigger type underwater sediment sampling device according to claim 2, characterized in that, the second limit mechanism comprises an envelope and an expansion buckle, the envelope is fixedly installed on the frame, the The expansion buckle is arranged in the envelope, the expansion buckle has a large end and a small end, the first connecting rod passes through the expansion buckle and is provided with a plurality of transverse grooves along the longitudinal direction of the first connecting rod, so as to It is used to cooperate with the small end of the expansion buckle to limit the movement of the first connecting rod. 4. A kind of trigger type underwater sediment sampling device according to claim 1, characterized in that, the top of the sampling cylinder is provided with a spring support rod upwards and the spring support rod passes through the top of the first shell The top cover, the power storage spring is worn on the spring support rod. 5. a kind of trigger type underwater sediment sampling device according to claim 1, is characterized in that, described frame comprises support frame and the upper support platform that is installed on described support frame jointly, middle support platform and lower support Platform, the second shell and the first shell are respectively installed on the middle support platform, the power storage spring passes through the middle support platform, and the lower support platform is provided with a passage for facilitating the movement of the sampling cylinder. hole. 6. A trigger type underwater sediment sampling device according to claim 5, characterized in that, the middle support platform and the lower support platform are connected together by a plurality of intermediate support rods. 7. A kind of trigger type underwater sediment sampling device according to claim 1, characterized in that, the sampling cylinder comprises an outer cylinder and an inner cylinder, and the outer cylinder comprises a left half cylinder and a half cylinder connected together by a hinge. In the right half cylinder, the inner wall of the outer cylinder is provided with a support boss for receiving the inner cylinder. 8. A trigger type underwater sediment sampling device according to claim 1, characterized in that an underwater camera is arranged on the frame.

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