Superficial seawater sampling device

Abstract

The invention discloses a superficial seawater sampling device which comprises a hanging bracket and a driving mechanism, a liquid inlet net pipe is fixedly installed at the bottom of a sampling tank, an opening and closing mechanism extending into the sampling tank is installed in the liquid inlet net pipe in an embedded mode, and the opening and closing mechanism comprises a sliding rail rod fixedly installed in the liquid inlet net pipe. A first claw rod and a second claw rod are movably installed on the outer side of the sliding rail rod through sliding grooves correspondingly, four linkage shaft rods are installed on the inner side of the bottom of the first claw rod and the inner side of the bottom of the second claw rod through shaft bolts correspondingly, and a sealing plug is installed at one end of each linkage shaft rod through a shaft bolt. Adsorption force generated by pressure difference can be reduced through the separately-controlled sealing plug, so that the separately-controlled sealing plug is used for controlling opening and closing of the liquid inlet of the liquid inlet net pipe, the problem that the liquid inlet cannot be opened and closed due to water pressure can be effectively solved, the device can stably and rapidly sample, and the sampling efficiency is improved. And the sampling effect and efficiency of the sampling device are ensured.

Description

Technical Field

[0001] The invention relates to a seawater sampling device, in particular to a shallow seawater sampling device. Background Art

[0002] Shallow seawater areas are an important part of the marine ecosystem, providing living space and reproduction conditions for marine organisms. Shallow seawater areas are one of the important objects of marine environmental monitoring. By monitoring indicators such as temperature, salinity, and dissolved oxygen of shallow seawater, we can understand the changing trends and potential risks of the marine environment. By collecting shallow seawater samples at different locations and times, we can study the chemical, biological, and physical phenomena in the marine environment, monitor indicators such as pollutants, nutrients, and biomass in the marine environment, and provide a scientific basis for the protection and sustainable use of marine resources.

[0003] Chinese patent CN116358946A discloses a seawater sampling device, comprising: a base and a power assembly are connected through a supporting column, a sampling container is arranged between the base and the power assembly; the sampling container comprises: an adapter plate connected with the power assembly; the flow tube is opened at both ends, sleeved on the outside of the adapter plate, and fixedly connected with the adapter plate, the flow tube is provided with an elastic member, a sealing pad and a push rod, an annular platform is arranged inside the flow tube, and the sealing pad is pressed and covered on the annular platform by the elastic member; a sample storage tube is sleeved on the outside of the flow tube and fixedly connected with the flow tube, a water storage space is formed between the sample storage tube and the flow tube, and a first flow hole is opened on the side wall of the flow tube; the middle part of the push rod is through, the outer wall is threadedly connected with the flow tube, a part of it passes through the bottom opening of the flow tube, and is connected with the push rod seat, and a second flow hole is opened on the side wall; the push rod seat is installed on the base; the sample storage tube and the flow tube are sealed and connected through a cover plate. It has the following defects: it cannot solve the water pressure problem of the sampling liquid inlet of the sampling device, causing the sampling liquid inlet to be easily affected by the water pressure and unable to be opened and closed normally, affecting the sampling efficiency of the sampling device. Summary of the invention

[0004] The present invention aims to solve the above technical problems existing in the seawater sampling device in the prior art and provides a shallow seawater sampling device which can stably and quickly sample.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a shallow seawater sampling device of the present invention comprises a hanger and a driving mechanism, wherein the driving mechanism is movably mounted on the top of the hanger, six groups of clamping mechanisms are equidistantly mounted inside the top of the hanger, and the driving mechanism is transmission-connected with the clamping mechanism, a sampling tank is clamped and mounted at the bottom of the clamping mechanism, a liquid inlet network pipe is fixedly mounted at the bottom of the sampling tank, an opening and closing mechanism extending to the inside of the sampling tank is embedded in the inside of the liquid inlet network pipe, and the opening and closing mechanism comprises a slide rail fixedly mounted inside the liquid inlet network pipe Rod, the outer side of the slide rail rod is movably installed with a first claw rod and a second claw rod through a slide groove, and the inner sides of the bottoms of the first claw rod and the second claw rod are installed with four groups of linked shaft rods through shaft bolts, one end of the linked shaft rod is installed with a sealing plug through the shaft bolt, and the eight sealing plugs are combined to form an annular sealing structure to control the opening and closing of the liquid inlet network pipe; wherein, the first claw rod and the second claw rod are telescopically moved to control the opening and closing of the corresponding sealing plugs through the four groups of linked shaft rods, thereby facilitating the control of the opening and closing of the liquid inlet network pipe, and the separately controlled sealing plugs will reduce the adsorption force generated by the pressure difference.

[0006] Preferably, a sliding rod is fixedly installed on the top of the second claw rod, a rack is fixedly installed on the top of the sliding rod, a sliding groove rod extending to the inside of the sliding rod is fixedly installed on the top of the first claw rod, and the inside of the sliding rod is movably connected with the sliding grooves opened on both sides of the sliding groove rod through a slider. When the sliding rod moves, the slider follows and moves to the top of the sliding groove, so that the moving sliding rod drives the sliding groove rod to move synchronously; wherein, the sliding rod is driven to move up and down by the cooperation of the gear and the rack rotating forward and reversely, and the sliding rod that moves up and down cooperates with the sliding groove inside the sliding groove rod through the internal slider, so that the sliding rod moves up and down to a certain position and then drives the sliding groove rod to move up and down synchronously, thereby achieving the purpose of controlling the synchronous movement of the first claw rod and the second claw rod.

[0007] Preferably, a tank cover is threadedly installed on the top of the sampling tank, an air pressure balance valve is installed through the top of the tank cover, a sealing cover is threadedly installed on one side of the sampling tank, a driving motor is fixedly installed inside the sealing cover, a gear extending to the inside of the sampling tank is fixedly installed on the output end of the driving motor, and the gear is meshingly connected with the rack, and a wireless controller is fixedly installed on the inner wall of the sealing cover; wherein the wireless controller is electrically connected to the driving motor through a wire, so that the staff can connect the handheld control end to the wireless controller to control the operation of the driving motor, and a battery is fixedly installed on one side of the wireless controller to provide power for the wireless controller and the driving motor.

[0008] Preferably, the hanger consists of a top frame, a connecting frame, and a bottom frame, and the connecting frame is fixedly installed at the bottom of the top frame, and the bottom frame is fixedly installed at the bottom of the connecting frame, wherein the top frame consists of a ring frame, a bracket, and a mounting ring frame, the ring frame is fixedly installed at the bottom of the bracket, and the mounting ring frame is fixedly installed inside the ring frame; wherein the connecting frame connects the top frame with the bottom frame, thereby ensuring the stability of the overall structure of the hanger, and the bottom frame can protect the liquid inlet network pipe to avoid being impacted by external forces, thereby ensuring the safety of the liquid inlet network pipe.

[0009] Preferably, the driving mechanism includes a worm, six transmission shaft frames surrounding the outside of the worm, and a transmission slide rod installed at the bottom end of the transmission shaft frame through an axle bolt, the worm is rotatably installed on the top of the annular frame, one end of the transmission shaft frame is installed on the bottom of the annular frame through a bearing frame, a worm wheel is fixedly installed on the top of the transmission shaft frame, and the worm wheel is mounted around the outside of the worm for meshing connection; wherein, the transmission slide rod is movably installed inside the mounting ring frame, and the bottom of the transmission slide rod is fixedly connected to the top of the movable seat, and a knob is fixedly installed on the top of the worm, and the knob is located at the top of the bracket.

[0010] Preferably, the clamping mechanism includes a movable seat fixed at the bottom end of the transmission slide rod, a rotating lock assembly is fixedly installed inside the movable seat, guide rods are movably installed on both sides of the movable seat, and the top ends of the guide rods are fixedly installed on the bottom of the mounting ring frame, and a lock hole plate is fixedly installed between the guide rods; a fixing ring is fixedly installed at the bottom end of the guide rod, clamping arms are equidistantly installed on the outside of the fixing ring through an axle bolt, a transmission shaft rod is installed on the top end of the clamping arm through an axle bolt, and one end of the transmission shaft rod is movably connected to the outside of the movable seat through the axle bolt; wherein a lock hole is opened inside the lock hole plate, the lock hole provides a channel for the lock block to pass through the lock hole plate, when the lock block coincides with the lock hole, unlocking is completed, and when the lock block and the lock hole are cross-intersected, locking is completed.

[0011] Preferably, the rotary lock assembly comprises a lock slot sleeve fixedly mounted inside the movable seat, a swivel seat is movably mounted inside the lock slot sleeve via a slide rod, and a lock block is mounted at the bottom of the swivel seat via a connecting rod; wherein a wave groove is provided at the middle position of the lock slot sleeve, the upper groove surface and the lower groove surface of the wave groove are undulating and staggered, and the undulating and staggered upper groove surface and the lower groove surface are used to squeeze the slide rod outside the swivel seat to cause the swivel seat to rotate up and down. Therefore, the present invention has the following beneficial effects: (1) The driving motor driven by power is driven to rotate forward, and the gear driven by the forward rotating gear drives the sliding rod to move upward through the meshing rack, and the sliding rod moving upward drives the second claw rod to move upward, and the second claw rod moving upward drives the sealing plug to move to the retracted sampling tank through the linkage shaft rod, and the sliding rod continues to move, and reaches the top of the slide grooves on both sides of the slide groove rod through the slider inside the sliding rod, and the sliding rod that continues to move upward drives the slide groove rod to move upward, and the slide groove rod that moves upward drives the first claw rod to move upward, and the first claw rod moving upward drives the sealing plug to move to the retracted sampling tank through the linkage shaft rod, so as to open the liquid inlet network pipe; When the liquid inlet network pipe is closed, the driving motor drives the gear to rotate in the opposite direction, and the gear rotating in the opposite direction drives the sliding sleeve rod to move downward through the meshing rack, and the sliding sleeve rod moving downward drives the second claw rod to move downward, and at the same time, the sliding sleeve rod moving downward reaches the bottom end of the slide slot through the slider to drive the slide slot rod to move downward, and the slide slot rod moving downward drives the first claw rod to move downward, and the second claw rod moving downward and the first claw rod moving downward both drive the sealing plug to move to the liquid inlet of the liquid inlet network pipe through the linkage shaft rod, and at the same time, eight sealing plugs form an annular sealing structure to seal the liquid inlet of the liquid inlet network pipe, so that the sampling tank forms a closed whole to store the shallow seawater sampled inside; (2) The separately controlled sealing plug will reduce the adsorption force generated by the pressure difference, so that the separately controlled sealing plug can be used to control the opening and closing of the liquid inlet of the liquid inlet network pipe, which can effectively solve the problem that the liquid inlet cannot be opened and closed due to the water pressure, so that the device can sample stably and quickly, ensuring the sampling effect and efficiency of the sampling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0013] Figure 2 It is a schematic diagram of the local structure of the hanger of the present invention.

[0014] Figure 3 It is a schematic diagram of the local structure of the top frame of the present invention.

[0015] Figure 4 It is a schematic diagram of the connection structure between the top frame, the driving mechanism and the clamping mechanism of the present invention.

[0016] Figure 5 It is a schematic diagram of the local structure of the driving mechanism of the present invention.

[0017] Figure 6 It is a schematic diagram of the partial structure of the clamping mechanism of the present invention.

[0018] Figure 7 It is a schematic diagram of the partial structure of the twist lock assembly of the present invention.

[0019] Figure 8It is a schematic diagram of the internal structure of the sampling tank of the present invention.

[0020] Fig. 9 It is a schematic diagram of the partial structure of the opening and closing mechanism of the present invention.

[0021] Fig.10 It is a schematic diagram of the opening and closing mechanism of the present invention in the open state.

[0022] Fig.11 It is a schematic diagram of the partial structure of the first claw rod of the present invention.

[0023] Fig.12 It is a schematic diagram of the partial structure of the second claw rod of the present invention.

[0024] In the figure: 1, hanger; 101, top frame; 1011, ring frame; 1012, bracket; 1013, mounting ring frame; 102, connecting frame; 103, bottom frame; 2, driving mechanism; 201, worm; 202, worm wheel; 203, transmission shaft frame; 204, transmission slide rod; 3, clamping mechanism; 301, movable seat; 302, guide rod; 303, fixing ring; 304, rotating lock assembly; 3041, lock groove sleeve; 3042, rotating seat; 3043, Lock block; 305, transmission shaft; 306, clamping arm; 4, sampling tank; 401, liquid inlet network pipe; 402, tank cover; 403, air pressure balance valve; 404, sealing cover; 405, wireless controller; 406, drive motor; 407, gear; 5, opening and closing mechanism; 501, slide rail rod; 502, first claw rod; 503, second claw rod; 504, sealing plug; 505, sleeve rod; 506, slide groove rod; 507, rack; 508, linkage shaft rod. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] See also Figure 1-12A shallow seawater sampling device proposed by the present invention comprises a hanger 1 and a driving mechanism 2, wherein the driving mechanism 2 is movably mounted on the top of the hanger 1, six groups of clamping mechanisms 3 are equidistantly mounted inside the top of the hanger 1, and the driving mechanism 2 is transmission-connected with the clamping mechanism 3, a sampling tank 4 is clamped and mounted at the bottom of the clamping mechanism 3, a liquid inlet network pipe 401 is fixedly mounted at the bottom of the sampling tank 4, an opening and closing mechanism 5 extending to the inside of the sampling tank 4 is embedded and mounted inside the liquid inlet network pipe 401, and the opening and closing mechanism 5 comprises a slide rail rod 501 fixedly mounted inside the liquid inlet network pipe 401, a first claw rod 502 and a second claw rod 503 are movably mounted on the outer side of the slide rail rod 501 through a slide groove, and four groups of linkage shaft rods 508 are mounted on the inner sides of the bottoms of the first claw rod 502 and the second claw rod 503 through shaft bolts, a sealing plug 504 is mounted on one end of the linkage shaft rod 508 through the shaft bolt, and an annular sealing structure is formed by combining eight sealing plugs 504 to control the opening and closing of the liquid inlet network pipe 401. It should be noted that: the driving mechanism 2 drives the six groups of clamping mechanisms 3 to clamp and fix synchronously at the same time, and the six groups of clamping mechanisms 3 disassemble and assemble the six sampling tanks 4 synchronously, which not only improves the convenience of disassembling and assembling the sampling tanks 4, reduces the difficulty of assembling and disassembling the sampling tanks 4, but also improves the efficiency of disassembling and assembling the sampling tanks 4. The six sampling tanks 4 can be used to sample shallow seawater at different depths and shallow seawater in different areas, without the need to repeatedly place the device for sampling operations, thereby improving the sampling efficiency and convenience of the sampling device; the first claw rod 502 and the second claw rod 503 are used to telescopically move through the The opening and closing of the corresponding sealing plugs 504 are controlled respectively by four sets of linkage shafts 508, so as to facilitate the control of the opening and closing of the liquid inlet network pipe 401, and facilitate the remote control of the liquid inlet network pipe 401 sampling according to the seawater sampling depth. At the same time, the filter net on the outside of the liquid inlet network pipe 401 is used to effectively filter larger objects to avoid the problem of blockage of the liquid inlet, thereby ensuring the sampling efficiency of the device. At the same time, the air pressure balance valve 403 is also used to balance the internal air pressure of the sampling tank 4 to avoid the problem of sampling failure caused by inconsistent internal and external pressures of the sampling tank 4, thereby ensuring that the opening and closing mechanism 5 stably controls the opening and closing of the liquid inlet of the liquid inlet network pipe 401.

[0027] Furthermore, a sliding rod 505 is fixedly installed on the top of the second claw rod 503, a rack 507 is fixedly installed on the top of the sliding rod 505, and a sliding groove rod 506 extending to the inside of the sliding rod 505 is fixedly installed on the top of the first claw rod 502, and the inside of the sliding rod 505 is movably connected to the sliding grooves opened on both sides of the sliding groove rod 506 through a slider. When the sliding rod 505 moves, the slider follows and moves to the top of the sliding groove, so that the moving sliding rod 505 drives the sliding groove rod 506 to move synchronously. It should be noted that: the positively rotating gear 407 drives the sliding rod 505 to move upward through the meshing rack 507, the upwardly moving sliding rod 505 drives the second claw rod 503 to move upward, the upwardly moving second claw rod 503 drives the sealing plug 504 to move to the retracted sampling tank 4 through the linkage shaft rod 508, the sliding rod 505 continues to move, and reaches the top of the slide grooves on both sides of the slide groove rod 506 through the slider inside the sliding rod 505, the sliding rod 505 that continues to move upward drives the slide groove rod 506 to move upward, the upwardly moving slide groove rod 506 drives the first claw rod 502 to move upward, the upwardly moving first claw rod 502 drives the sealing plug 504 to move to the retracted sampling tank 4 through the linkage shaft rod 508, so as to realize the liquid inlet network The tube 401 is opened; the rotating gear 407 drives the sliding rod 505 to move downward through the meshing rack 507, and the sliding rod 505 moving downward drives the second claw rod 503 to move downward, and at the same time, the sliding rod 505 moving downward reaches the bottom of the slide groove through the slider and drives the slide groove rod 506 to move downward, and the slide groove rod 506 moving downward drives the first claw rod 502 to move downward; the second claw rod 503 moving downward and the first claw rod 502 moving downward both drive the sealing plug 504 to move to the liquid inlet port of the liquid inlet network pipe 401 through the linkage shaft rod 508, and at the same time, eight sealing plugs 504 form an annular sealing structure to seal the liquid inlet port of the liquid inlet network pipe 401, so that the sampling tank 4 forms a closed whole to store the sampled seawater inside.

[0028] Furthermore, a tank cover 402 is threadedly installed on the top of the sampling tank 4, and a pressure balance valve 403 is installed through the top of the tank cover 402. A sealing cover 404 is threadedly installed on one side of the sampling tank 4. A driving motor 406 is fixedly installed inside the sealing cover 404. A gear 407 extending to the inside of the sampling tank 4 is fixedly installed at the output end of the driving motor 406, and the gear 407 is meshed and connected with the rack 507. A wireless controller 405 is fixedly installed on the inner wall of the sealing cover 404. It should be noted that the wireless controller 405 controls the driving motor 406 to be powered on and operated according to the received instructions, and the powered driving motor 406 drives the gear 407 to rotate, and the rotating gear 407 drives the opening and closing mechanism 5 to operate, control the liquid inlet network pipe 401 to be liquid-intake and sealed, and facilitate the normal sampling of the device in an environment with a large air pressure difference.

[0029] Furthermore, the hanger 1 is composed of a top frame 101, a connecting frame 102, and a bottom frame 103, and the connecting frame 102 is fixedly mounted on the bottom of the top frame 101, and the bottom frame 103 is fixedly mounted on the bottom of the connecting frame 102, wherein the top frame 101 is composed of an annular frame 1011, a bracket 1012, and an installation ring frame 1013, the annular frame 1011 is fixedly mounted on the bottom of the bracket 1012, and the installation ring frame 1013 is fixedly mounted inside the annular frame 1011. It should be noted that the bracket 1012 can provide an installation position for the driving mechanism 2, and a hoisting structure is fixedly mounted on the top of the bracket 1012, so as to facilitate the hoisting and placement of the device in the shallow seawater for sampling operations, and the installation ring frame 1013 can provide an installation position for the clamping mechanism 3, and the clamping mechanism 3 is surrounded by the annular frame 1011 to protect the clamping mechanism 3 from being damaged by external forces.

[0030] Further, the driving mechanism 2 includes a worm 201, six transmission shaft frames 203 surrounding the outside of the worm 201, and a transmission slide 204 installed at the bottom of the transmission shaft frame 203 through a shaft bolt. The worm 201 is rotatably installed on the top of the annular frame 1011, one end of the transmission shaft frame 203 is installed at the bottom of the annular frame 1011 through a bearing frame, a worm wheel 202 is fixedly installed on the top of the transmission shaft frame 203, and a transmission slide 204 is installed on the other end of the transmission shaft frame 203 through a shaft bolt. It should be noted that: the worm 201 is driven to rotate by a hand-held knob, and the rotating worm 201 drives six worm wheels 202 in different directions to rotate in the same direction. The worm wheels 202 rotating in the same direction drive the transmission slide 204 to telescopically move through the transmission shaft frame 203, and the telescopically moving transmission slide 204 drives the clamping mechanism 3 to engage, clamp, and self-lock.

[0031] Furthermore, the clamping mechanism 3 includes a movable seat 301 fixed at the bottom end of the transmission slide rod 204, a rotating lock assembly 304 is fixedly installed inside the movable seat 301, guide rods 302 are movably installed on both sides of the movable seat 301, and the top end of the guide rods 302 is fixedly installed on the bottom of the mounting ring frame 1013, and a lock hole plate is fixedly installed between the guide rods 302; a fixing ring 303 is fixedly installed at the bottom end of the guide rod 302, and clamping arms 306 are equidistantly installed on the outer side of the fixing ring 303 through an axle bolt, and a transmission shaft rod 305 is installed on the top end of the clamping arm 306 through an axle bolt, and one end of the transmission shaft rod 305 is movably connected to the outer side of the movable seat 301 through an axle bolt. It should be noted that: the movable seat 301 is driven downward by moving the transmission slide rod 204 downward, and the movable seat 301 moving downward drives the rotary lock assembly 304 to rotate and unlock. After unlocking, the movable seat 301 moves upward and drives the clamping arm 306 to gather inward through the transmission shaft 305 to clamp and fix the sampling tank 4; when disassembling the sampling tank 4, the movable seat 301 moving downward drives the clamping arm 306 to expand outward through the transmission shaft 305, and the movable seat 301 that continues to move downward drives the rotary lock assembly 304 to rotate and lock the clamping arm 306 to expand, thereby releasing the clamping and fixation of the sampling tank 4, making it convenient to take the sampling tank 4.

[0032] Further, the rotary lock assembly 304 includes a lock slot sleeve 3041 fixedly mounted inside the movable seat 301, a rotating seat 3042 is movably mounted inside the lock slot sleeve 3041 through a slide bar, and a locking block 3043 is mounted at the bottom of the rotating seat 3042 through a connecting rod. It should be noted that when the lock slot sleeve 3041 moves downward, the upper groove surface of the inner wall wave groove of the lock slot sleeve 3041 squeezes the slide bar to rotate the rotating seat 3042, and the rotating rotating seat 3042 rotates through the connecting rod locking block 3043, and when the rotating locking block 3043 coincides with the locking hole opened inside the locking hole plate, unlocking is completed; the lock slot sleeve 3041 is pressed downward again, and the rotating seat 3042 drives the locking block 3043 to rotate again through the connecting rod, so that the locking block 3043 and the locking hole opened inside the locking hole plate are cross-intersected, and locking is completed, and the purpose of one-click locking and one-click unlocking of the rotary lock assembly 304 is completed.

[0033] The working process of the driving mechanism 2 driving the clamping mechanism 3 is as follows: the worm 201 is driven to rotate forwardly by the hand-held knob, the forward rotating worm 201 drives the transmission shaft frame 203 to press downward synchronously through the six meshing worm wheels 202, the transmission shaft frame 203 that is pressed downward drives the movable seat 301 to move downward through the transmission slide bar 204, the movable seat 301 that moves downward drives the lock groove sleeve 3041 to move downward, the wave groove inside the lock groove sleeve 3041 is used to squeeze the slide bar to make the rotating seat 3042 rotate, the rotating rotating seat 3042 is rotated by the connecting rod lock block 3043, the rotating lock block 3043 coincides with the lock hole opened inside the lock hole plate to complete unlocking; Then, the worm 201 is rotated in the opposite direction, so that the rotating worm 201 drives the transmission shaft frame 203 to be lifted up synchronously through the six meshing worm wheels 202, and the lifted transmission shaft frame 203 drives the transmission slide bar 204 to drive the movable seat 301 to move upward, and the movable seat 301 moving upward drives the clamping arm 306 to gather inwards through the transmission shaft rod 305 to clamp and fix the sampling tank 4; when the clamping and fixation of the sampling tank 4 is released, the worm 201 is driven to rotate forwardly by the hand-held knob, and the forward rotating worm 201 drives the transmission shaft frame 203 to be pressed downward synchronously through the six meshing worm wheels 202, and the transmission shaft frame 203 pressed downward is driven by the hand-held knob. The transmission slide bar 204 drives the movable seat 301 to move downward, and the movable seat 301 moving downward drives the locking groove sleeve 3041 to move downward, and the wave groove inside the locking groove sleeve 3041 is used to squeeze the slide bar to make the rotating seat 3042 rotate, and the rotating rotating seat 3042 is rotated by the connecting rod locking block 3043, and the rotating locking block 3043 is cross-intersected with the locking hole opened inside the locking hole plate to complete the locking, and the clamping arm 306 is locked to expand, which is convenient for the disassembly and removal of the sampling tank 4, and the expansion action of the clamping arm 306 is locked by one press of the rotating lock assembly 304, and the clamping arm 306 is unlocked by one press, which is convenient for the subsequent clamping action of the clamping arm 306.

[0034] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims

1. A shallow seawater sampling device, comprising a hanger (1) and a driving mechanism (2), characterized in that: The driving mechanism (2) is movably mounted on the top of the hanger (1); six groups of clamping mechanisms (3) are equidistantly mounted inside the top of the hanger (1); the driving mechanism (2) is transmission-connected to the clamping mechanisms (3); a sampling tank (4) is clamped and mounted on the bottom of the clamping mechanisms (3); a liquid inlet network tube (401) is fixedly mounted on the bottom of the sampling tank (4); an opening and closing mechanism (5) extending into the interior of the sampling tank (4) is embedded and mounted inside the liquid inlet network tube (401); the opening and closing mechanism (5) comprises a fixedly mounted liquid inlet network tube (401) and a liquid inlet network tube (401). A slide rail rod (501) is provided inside the network tube (401), and a first claw rod (502) and a second claw rod (503) are movably mounted on the outer side of the slide rail rod (501) through a slide groove, and four groups of linkage shaft rods (508) are mounted on the inner side of the bottom of the first claw rod (502) and the second claw rod (503) through shaft bolts, and a sealing plug (504) is mounted on one end of the linkage shaft rod (508) through the shaft bolt. The eight sealing plugs (504) are combined to form an annular sealing structure to control the opening and closing of the liquid inlet network tube (401).

2. A shallow seawater sampling device according to claim 1, characterized in that: A sliding rod (505) is fixedly installed on the top of the second claw rod (503), a rack (507) is fixedly installed on the top of the sliding rod (505), and a sliding groove rod (506) extending into the interior of the sliding rod (505) is fixedly installed on the top of the first claw rod (502), and the interior of the sliding rod (505) is movably connected to the sliding grooves provided on both sides of the sliding groove rod (506) through a slider, and when the sliding rod (505) moves, the slider moves to the top of the sliding groove, so that the moving sliding rod (505) drives the sliding groove rod (506) to move synchronously.

3. A shallow seawater sampling device according to claim 1, characterized in that: The top of the sampling tank (4) is threadedly mounted with a tank cover (402), the top of the tank cover (402) is penetrated by a gas pressure balance valve (403), a sealing cover (404) is threadedly mounted on one side of the sampling tank (4), a driving motor (406) is fixedly mounted inside the sealing cover (404), a gear (407) extending into the interior of the sampling tank (4) is fixedly mounted at the output end of the driving motor (406), and the gear (407) is meshingly connected with a rack (507), and a wireless controller (405) is fixedly mounted on the inner wall of the sealing cover (404).

4. A shallow seawater sampling device according to claim 1, characterized in that: The hanger (1) is composed of a top frame (101), a connecting frame (102), and a bottom frame (103), wherein the connecting frame (102) is fixedly mounted on the bottom of the top frame (101), and the bottom frame (103) is fixedly mounted on the bottom of the connecting frame (102), wherein the top frame (101) is composed of an annular frame (1011), a bracket (1012), and an installation ring frame (1013), wherein the annular frame (1011) is fixedly mounted on the bottom of the bracket (1012), and the installation ring frame (1013) is fixedly mounted inside the annular frame (1011).

5. A shallow seawater sampling device according to claim 4, characterized in that: The driving mechanism (2) comprises a worm (201), six transmission shaft frames (203) surrounding the outside of the worm (201), and a transmission slide bar (204) mounted at the bottom of the transmission shaft frame (203) via an axle bolt, the worm (201) being rotatably mounted on the top of an annular frame (1011), one end of the transmission shaft frame (203) being mounted on the bottom of the annular frame (1011) via a bearing frame, a worm wheel (202) being fixedly mounted on the top of the transmission shaft frame (203), and the worm wheel (202) being mounted around the outside of the worm (201) in meshing connection.

6. A shallow seawater sampling device according to claim 5, characterized in that: The clamping mechanism (3) comprises a movable seat (301) fixed at the bottom end of the transmission slide rod (204), a rotating lock assembly (304) fixedly installed inside the movable seat (301), guide rods (302) movably installed on both sides of the movable seat (301), and the top ends of the guide rods (302) are fixedly installed on the bottom of the mounting ring frame (1013), and a lock hole plate is fixedly installed between the guide rods (302); a fixing ring (303) is fixedly installed at the bottom end of the guide rod (302), a clamping arm (306) is equidistantly installed on the outer side of the fixing ring (303) through an axle bolt, a transmission shaft (305) is installed on the top end of the clamping arm (306) through an axle bolt, and one end of the transmission shaft (305) is movably connected to the outer side of the movable seat (301) through the axle bolt.

7. A shallow seawater sampling device according to claim 6, characterized in that: The rotary lock assembly (304) comprises a lock slot sleeve (3041) fixedly mounted inside the movable seat (301), a rotary seat (3042) being movably mounted inside the lock slot sleeve (3041) via a slide rod, and a lock block (3043) being mounted at the bottom of the rotary seat (3042) via a connecting rod.

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