CN117516990A

CN117516990A - Novel sample collection device

Info

Publication number: CN117516990A
Application number: CN202311522066.2A
Authority: CN
Inventors: 于学明; 于明臣; 程峰; 崔晓影
Original assignee: Qingdao Zhiqida Technology Service Co ltd
Current assignee: Qingdao Zhiqida Technology Service Co ltd
Priority date: 2023-11-15
Filing date: 2023-11-15
Publication date: 2024-02-06

Abstract

The invention discloses a novel sample collection device, which relates to the field of sample detection and aims at solving the problems that in the prior art, residues are easy to occur in a sampler and the content of manual operation is more; the bottom surface of the sampling tube is opened, and is detachably connected with a lower sealing cover, the bottom surface of the sample storage tube is provided with a sample placing port, and a sample placing piece is arranged on the sample placing port. Through setting up gliding a kind section of thick bamboo that stores in the sampling tube, can make a kind section of thick bamboo that stores slide under the action of gravity after the water gets into the sampling tube, store the appearance section of thick bamboo and slide to the settlement position after, make the sealed plug seal sampling port end sample, this process can be simplified the end sample process, and the inner wall of a kind section of deposit is smooth, no dead angle, difficult residual sample, the follow-up clearance of being convenient for has improved the accuracy that follow-up sample detected.

Description

Novel sample collection device

Technical Field

The invention relates to the field of sample detection, in particular to a novel sample collection device.

Background

In the river water sample detection process, river water body sampling is needed, layered sampling is needed in order to better know water body conditions of different layers in the water body, and the existing common sampling bottle is mainly used for surface water sampling and is inconvenient to use for water body layered sampling.

Chinese patent CN202221900259.8 discloses a water quality monitoring layered sampling device, and the technical scheme adopted is that a sampler and a sealing plug are arranged, the sealing plug is hinged in the sampler, and is connected with a rotating rod through a loop bar, and after the water is lowered into water, the sealing plug is driven to rotate by rotating the rotating rod so as to open the sampler.

According to the technical scheme, the layered sampling of the water body can be realized, but because the joint between the blocking plug and the sampling port of the sampler is manually screwed and opened, gaps are reserved at the joint of the supporting plate and the sampler, the risks that residual water samples affect the testing accuracy of subsequent samples exist in the gaps, the sampling port opening and the sampling port closing in the sampling process depend on manual operation, the sampler needs to be manually put down during operation, the sampling port is opened, the sampling port is closed, four operation steps of the sampler are recovered, and the manual operation content is more.

Disclosure of Invention

In view of the problems that residues are easy to appear in a sampler and manual operation is more in the prior art, the invention discloses a novel sample collecting device, a rotary leakage-proof mechanism is arranged to drive water flow in the sinking process of the sampler to rotate, a sampling port is blocked by centrifugal force to prevent advance liquid inlet, a sample storage barrel sliding up and down is arranged in the sampling barrel, after a water sample enters, the sampling port is blocked by the blocking mechanism triggered by the sinking of the sample storage barrel under the action of gravity, sampling is completed, and then the water sample is recovered by sampling personnel.

In order to achieve the purpose, the technical scheme is that the sampling device comprises a sampling tube, wherein a sampling port is formed in the sampling tube, a sample storage tube is connected in a sliding manner in the sampling tube, a sealing mechanism is arranged on the sampling tube, the sealing mechanism is connected with the sampling port in a sliding manner, and the sampling port can be plugged through the sealing mechanism; the bottom surface of the sampling tube is opened, a lower sealing cover is detachably connected, the lower sealing cover can be opened to take out the sample storage tube, a sample discharging port is arranged on the bottom surface of the sample storage tube, a sample discharging piece is arranged on the sample discharging port, and a water sample stored in the sample storage tube can be taken out; the sampling tube is also connected with a rotary leakage-proof mechanism, so that the sampling port can be plugged in the falling process of the sampler, and the sampling in advance is prevented.

As a preferable technical scheme of the invention, the rotary leakage-proof mechanism further comprises a sinking cone connected below the sampling tube, a first balancing weight and a rotary centrifugal mechanism are arranged in a shell of the sinking cone, a water passing hole is formed in the shell, the water passing hole corresponds to the rotary centrifugal mechanism in position, the rotary centrifugal mechanism is connected with a transmission mechanism, the transmission mechanism is connected with a plugging mechanism, the plugging mechanism is connected with a first plugging block, and the first plugging block corresponds to the sampling port in position and is matched with the sampling port in size; and the air flow and water flow in the falling process enter from the water hole, the rotary centrifugal mechanism is driven to rotate, and the first plugging plug is driven to plug the sampling port through the transmission mechanism.

As a preferable technical scheme of the invention, the rotary centrifugal mechanism further comprises a turbine and a first telescopic rod, wherein the turbine shaft is connected in the shell, the turbine is driven by fluid to rotate to generate centrifugal force, the first telescopic rod is fixedly connected to the connecting shaft of the turbine, the first telescopic rod further comprises a slide tube and a slide bar, the slide bar is connected in a sliding manner in the slide tube, a seventh spring is arranged between the slide bar and the slide tube, the seventh spring is a tension spring, and a second balancing weight is arranged at the free end of the slide bar; the transmission mechanism further comprises a first push plate, a first sliding rail is arranged in the shell, the first push plate is connected in a sliding mode in the first sliding rail, a first reset spring is arranged between the first push plate and the first sliding rail, the first push plate is connected with the free end of the sliding rod of the first telescopic rod in a sliding mode, a second push rod is further connected to the first push plate, the sliding rod stretches under the action of centrifugal force to push the first push plate to move, a through hole is formed in the shell, and the second push rod is connected in a sliding mode in the through hole and is connected with the plugging mechanism in a sliding mode; the water passing hole also comprises a water inlet and a water outlet, the water inlet and the water outlet are respectively positioned at the upper side and the lower side of the turbine, the water inlet is an inclined hole and inclines towards the rotation direction of the turbine, so that the airflow or water flow entering the shell can apply larger thrust to the turbine; the housing is a conical shell to reduce resistance to falling or sinking.

As a preferable technical scheme of the invention, the plugging mechanism further comprises two frames and a connecting plate, wherein the two frames are connected with the shell, a chute is formed in the frame, second sliding blocks are arranged on two sides of the first plugging block and are connected in a sliding manner in the chute, and the first plugging block is connected with the connecting plate; the two frames are hinged with a first turning plate, the first turning plate is connected with the second push rod in a sliding mode, a first push rod is hinged to the first turning plate, a slide way is arranged on the connecting plate, the free end of the first push rod is connected in a sliding mode in the slide way, the second push rod pushes the first turning plate to enable the connecting plate to move, and the first plugging plug is pushed into the sampling port to plug.

As a preferable technical scheme of the invention, an inner cavity is arranged in the sampling tube, the sample storage tube is connected in the inner cavity in a sliding way, a first O-shaped ring is arranged between the sample storage tube and the inner cavity, the sample storage tube is positioned below the sampling port, the sealing mechanism is a sealing block, the sealing block is connected in the inner cavity in a sliding way, the sealing block is positioned above the sampling port, and a sixth spring is arranged between the sealing block and the inner cavity; a check ring is fixedly connected in the inner cavity, the check ring is positioned below the sampling port, and the sample storage barrel is in sliding connection with the bottom surface of the check ring; the side wall of the inner cavity is provided with a cavity groove, one side of the cavity groove is I-shaped, the cavity groove is communicated with the inner cavity, a driving pin is slidably connected in the cavity groove, one end of the driving pin is inserted into the inner cavity, the upper surface and the lower surface of the end are inclined planes, a first spring is pressed between the driving pin and the cavity groove, the driving pin is connected with a limiting pin through a third connecting rod, the limiting pin is slidably connected with the bottom surface of the sealing plug, the bottom surface of the end part of the limiting pin is the inclined plane, and a second O-shaped ring is sleeved on the limiting pin; the side wall of the inner cavity is provided with a vent pipe which is of a T-shaped structure, the main pipe part is longitudinal, two ends of the main pipe part are communicated with the outside, and the branch pipe part is transverse and is communicated with the inner cavity below the sample storage barrel; the sample storage cylinder is connected with the lower sealing cover through threads, and the lower sealing cover is provided with a vent hole corresponding to the vent pipe in position; the lofting piece is a lofting cover, and the lofting cover is in threaded connection with the lofting opening; the top surface of the sampling tube is provided with a first butt joint, the bottom surface of the sampling tube is provided with a butt joint ring, the outer diameter of the first butt joint ring is matched with the inner diameter of the butt joint ring, the first butt joint ring is provided with external threads, and the butt joint ring is provided with internal threads matched with the external threads; the top surface of the shell of the sinking cone is provided with a second butt joint, the second butt joint and the first butt joint are the same in size and are provided with the same external threads, the sample storage barrel is sinking to press the driving pin so as to drive the limiting pin to move to release the limit, and the sealing plug downwards moves to seal the sampling port under the action of a sixth spring to finish sampling; the sealing plug adopts a piston type or a common plug body is sleeved with an O-shaped ring for sealing.

As a preferable technical scheme of the invention, an inner cavity is arranged in the sampling tube, the sample storage tube is connected in the inner cavity in a sliding way, a first O-shaped ring is arranged between the sample storage tube and the inner cavity, the sample storage tube is positioned below the sampling port, the sealing mechanism is a sealing block, the sealing block is connected in the inner cavity in a sliding way, the sealing block is positioned above the sampling port, and the sealing block is connected with the sample storage tube through a first connecting rod; the side wall of the inner cavity is provided with a vent pipe which is of a T-shaped structure, the main pipe part is longitudinal, two ends of the main pipe part are communicated with the outside, and the branch pipe part is transverse and is communicated with the inner cavity below the sample storage barrel; the sample storage cylinder is connected with the lower sealing cover through threads, and the lower sealing cover is provided with a vent hole corresponding to the vent pipe in position; the sample placing piece is a sample placing pipe, the sample placing pipe is connected with the sample placing port, and the sample placing pipe is provided with a sample placing valve; the top surface of the sampling tube is provided with a first butt joint, the bottom surface of the sampling tube is provided with a butt joint ring, the outer diameter of the first butt joint ring is matched with the inner diameter of the butt joint ring, the first butt joint ring is provided with external threads, and the butt joint ring is provided with internal threads matched with the external threads; the top surface of the shell of the sinking cone is provided with a second butt joint, the second butt joint and the first butt joint are the same in size and are provided with the same external threads, after water enters the sample storage barrel, the sample storage barrel sinks under the action of gravity, and the sample storage barrel drives the sealing plug to descend through the first connecting rod until the sealing plug completely seals the sampling port.

As a preferable technical scheme of the invention, the rotary leakage-proof mechanism further comprises a sinking cone, a shell and a seat ring plate, wherein the sinking cone is connected below the sampling tube, the shell is rotationally connected with the seat ring plate, the shell is a conical shell, a first balancing weight is arranged in the shell, a turbine is suspended on the inner top surface of the shell, the turbine is fixedly connected with the shell, a water inlet and a water outlet are formed in the shell, the water inlet and the water outlet are respectively positioned on the upper side and the lower side of the turbine, and the water inlet is an inclined hole and inclines towards the rotation direction of the turbine; the water flow entering the shell pushes the turbine to rotate, and the turbine drives the shell to integrally rotate.

As a preferable technical scheme of the invention, an inner cavity is arranged in the sampling tube, the sample storage tube is connected in the inner cavity in a sliding way, a first O-shaped ring is arranged between the sample storage tube and the inner cavity, and the sample storage tube is positioned below the sampling port; a check ring is fixedly connected in the inner cavity, the check ring is positioned below the sampling port, and the sample storage barrel is in sliding connection with the bottom surface of the check ring; the inner cavity is internally provided with an inner plate, the top surface of the inner plate is flush with the bottom surface of the sampling port, a liquid passing hole is formed in the inner plate, a liquid guide pipe is arranged on the inner plate and is an arc-shaped plate and buckled on the inner plate, the liquid passing hole is arranged in the liquid guide pipe, the liquid guide pipe is opposite to the sampling port, one end of the liquid guide pipe, which is close to the sampling port, is connected with the side wall of the inner cavity, the sealing mechanism is a third sealing plug, the third sealing plug is slidably connected in the liquid guide pipe, the third sealing plug is corresponding to the position of the sampling port and is matched with the position of the sampling port in size, the contact surface area of the third sealing plug and the inner plate is larger than the top surface area of the liquid passing hole, an L-shaped plate is arranged on the liquid guide pipe, and a third spring is arranged between the L-shaped plate and the spring bin in a pressing manner; the inner plate is provided with an ejecting mechanism, the inner side wall of the inner cavity is provided with a triggering mechanism, and the triggering mechanism is connected with the ejecting mechanism; the top surface of the inner cavity shell is connected with a top cover through a plurality of second connecting rods, the outer side of each second connecting rod is sleeved with a ring, the inner side of each second connecting rod is provided with an inner wheel, a centrifugal plugging mechanism is arranged in the inner cavity, the centrifugal plugging mechanism is connected with the inner wheels, and magnets with the same poles opposite to each other are arranged on the rings and the inner wheels; the side wall of the inner cavity is also provided with a vent pipe, one end of the vent pipe is positioned below the sample storage barrel, the other end of the vent pipe is closed, the closed end of the vent pipe is connected with a second sealing plug in a sliding manner, a second spring is pressed between the second sealing plug and the closed end of the vent pipe, the vent pipe further comprises a bronchus, one end of the bronchus is laterally communicated with the vent pipe, the other end of the bronchus is communicated with the inner cavity between the inner plate and the retainer ring, and the second sealing plug is connected with a port of the bronchus in a sliding manner; an outer connecting rod is connected to the shell of the sinking cone, the outer connecting rod is connected with the ring through a plug-in rod, a cleaning brush is further connected to the outer connecting rod, and the cleaning brush corresponds to the sampling port in position; the top cover is provided with a connector, the bottom surface of the sampling tube is provided with a butt joint ring, the connector is provided with external threads, and the butt joint ring is provided with internal threads matched with the external threads of the connector; the top surface of the seat ring plate of the sinking cone is provided with a connecting end, and the structure of the connecting end is the same as that of the connector; when falling, the sinking cone shell drives the annular ring to rotate, the annular ring drives the inner wheel to rotate through the magnet, and the inner wheel drives the centrifugal plugging mechanism to enable the third plugging to plug the liquid through hole, so that liquid is prevented from entering in advance; in the sampling process, the sample storage cylinder descends until an ejection mechanism is triggered, and the third blocking plug ejects the liquid through hole and the sampling port to terminate sampling; the plugging degree of the plugging block can be adjusted by adjusting the wall thickness of the sampling tube, the distance between the liquid passing hole and the edge of the inner plate and the length of the third plugging block, for example, the wall thickness is reduced, the distance between the liquid passing hole and the edge of the inner plate is increased, and the third plugging block can completely plug the liquid passing hole and the sampling port.

As a preferred technical scheme of the invention, the ejecting mechanism further comprises a fourth spring and a push block, the top surface of the inner plate is provided with a seat plate, the inner plate is connected with the push block in a sliding way, the fourth spring is pressed between one side of the push block and the seat plate, the other side of the push block is connected with the third plugging plug in a sliding way, the push block is connected with a limit buckle, the inner plate is provided with a limit groove, and the limit buckle is connected in a sliding way in the limit groove; the triggering mechanism further comprises a driving pin, a lifting block and an unlocking rod, wherein a cavity groove is formed in the side wall of the inner cavity, the cavity groove is a longitudinal groove, the upper end and the lower end of the cavity groove are both opened transversely in the direction of the inner cavity, the lower end of the cavity groove is communicated with the inner cavity, the driving pin is connected in a sliding manner in the cavity groove, a first spring is pressed between the driving pin and the cavity groove, the end part of the driving pin penetrates into the inner cavity and corresponds to the position of the sample storage barrel, the upper end part and the lower end part of the driving pin are inclined planes, slotted holes which are opened up and down are formed in the driving pin, and the lower end of the lifting block is provided with an inclined plane and is connected in a sliding manner in the slotted holes; the inner plate is provided with an unlocking hole, one end of the unlocking hole is opened and is matched with the opening position of the upper end of the cavity groove in a corresponding size, the other end of the unlocking hole is communicated with the limiting groove, the unlocking rod is connected in the unlocking hole in a sliding mode, one end of the unlocking rod is provided with a wedge block, the inner side of the cavity groove is connected in a sliding mode, the top surface of the lifting block is connected with the inclined surface of the wedge block in a sliding mode, and a fifth spring is arranged between the unlocking rod and the unlocking hole in a pressing mode.

As a preferable technical scheme of the invention, the centrifugal plugging mechanism further comprises a rotating shaft and a second push plate, wherein the rotating shaft is connected with the top surface of the shell of the inner cavity, the upper end of the rotating shaft is connected with the inner wheel, the lower end of the rotating shaft is arranged in the inner cavity and is connected with a second telescopic rod, the second telescopic rod has the same structure as the first telescopic rod, a second sliding rail is connected in the inner cavity, the second push plate is connected onto the second sliding rail in a sliding manner, a second reset spring is arranged between the second push plate and the second sliding rail, the free end of the second telescopic rod is connected with the second push plate in a sliding manner, a second turning plate is connected with the inner shaft of the inner cavity, the upper part of the second turning plate is connected with the second push plate in a sliding manner, and the lower end of the second turning plate is connected with the L-shaped plate in a sliding manner.

As a preferable technical scheme of the invention, the ring further comprises a main frame ring, the top surface of the main frame ring is provided with a ring groove, the outer ring surface is provided with a jack, the plug rod is plugged in the jack, the inner ring surface of the main frame ring is provided with a first mounting groove, the first mounting groove is obliquely arranged, a first magnet is arranged in the first mounting groove, and the ring groove is internally provided with a magnetic gathering ring; the inner wheel further comprises a wheel body, a second mounting groove is formed in the outer side face of the inner wheel body, the second mounting groove is opposite to the first mounting groove, a second magnet is mounted in the second mounting groove, the second magnet is homopolar opposite to the first magnet, and the inner wheel is pushed to rotate when the ring rotates by utilizing the principle of homopolar repulsion.

The invention has the beneficial effects that: according to the invention, the sliding sample storage cylinder is arranged in the sampling cylinder, so that the sample storage cylinder can slide downwards under the action of gravity after water enters the sampling cylinder, and the sealing plug seals the sampling port to finish sampling after the sample storage cylinder slides downwards to a set position. Through setting up the awl that sinks not only can accelerate the speed of sinking of sampler, the turbine that sets up in inside can also turn into the drive power with the fluid flow when sinking, make shutoff mechanism or seal mechanism seal the sample connection, in order to prevent that the upper water from getting into the lower floor's sample section of thick bamboo in the sample section of thick bamboo sinking process, lead to sampling result deviation, after reaching the sample point, the sample section of thick bamboo stops sinking, the turbine loses power source, stop the rotation, centrifugal force disappears, shutoff mechanism or seal mechanism open the sample connection, begin the sample, this structure can begin the sample voluntarily, with the further simplification of sampling operation.

Drawings

FIG. 1 is a schematic structural view of a first embodiment of the present invention;

FIG. 2 is a schematic view showing an internal structure of a sampling tube according to a first embodiment of the present invention;

FIG. 3 is a schematic diagram of an internal structure of a sampling tube according to a first embodiment of the present invention;

FIG. 4 is a schematic view of a rotary leakage preventing mechanism according to a first embodiment of the present invention;

fig. 5 is an enlarged schematic view of the first embodiment a of the present invention;

fig. 6 is an enlarged schematic view of the first embodiment B of the present invention;

fig. 7 is an enlarged schematic view of the first embodiment C of the present invention;

FIG. 8 is a schematic view of a first telescoping rod in accordance with a first embodiment of the present invention;

FIG. 9 is a schematic view showing an internal structure of a sampling tube according to a second embodiment of the present invention;

FIG. 10 is a diagram showing an internal structure of a sampling tube according to a second embodiment of the present invention;

FIG. 11 is a schematic structural view of a third embodiment of the present invention;

FIG. 12 is a schematic view showing an internal structure of a sampling tube according to a third embodiment of the present invention;

FIG. 13 is a schematic view showing the internal structure of a catheter according to a third embodiment of the present invention;

FIG. 14 is a schematic view of an ejector mechanism according to a third embodiment of the present invention;

FIG. 15 is a schematic view of a trigger mechanism according to a third embodiment of the present invention;

fig. 16 is an enlarged schematic view of a third embodiment D of the present invention;

FIG. 17 is a schematic view of a third embodiment of a lifting block driven unlocking lever;

FIG. 18 is a schematic view showing the internal structure of a countersunk cone according to a third embodiment of the present invention;

FIG. 19 is a schematic view of the inner structure of a countersunk cone according to a third embodiment of the present invention;

FIG. 20 is a schematic view of a loop structure according to a third embodiment of the present invention;

FIG. 21 is a schematic view showing the internal structure of a ring according to a third embodiment of the present invention;

FIG. 22 is a schematic view of an inner wheel structure according to a third embodiment of the present invention;

fig. 23 is a schematic diagram showing a positional relationship between a first magnet and a second magnet according to a third embodiment of the present invention.

In the figure: 1. a sampling tube; 101. an inner cavity; 1011. a retainer ring; 1012. a cavity groove; 1013. a butt joint ring; 1014. a first pair of joints; 1015. a second slide rail; 102. a vent pipe; 1021. bronchi; 1022. a second closure plug; 1023. a second spring; 103. a lower cover; 104. a sample storage cylinder; 1041. a first O-ring; 1042. a lofting cover; 1043. a first connecting rod; 1044. a lofting valve; 1045. a sample discharging tube; 105. a sampling port; 106. closing the plug; 107. a sixth spring; 108. a drive pin; 109. a first spring; 110. a limiting pin; 1101. a second O-ring; 111. an inner plate; 1111. unlocking the hole; 1112. a liquid passing hole; 1113. a seat plate; 1114. a top plate; 112. a catheter; 1121. a spring bin; 113. a second connecting rod; 114. a top cover; 1141. a connector; 115. a loop; 1151. a main frame ring; 1152. a jack; 1153. a magnetic ring; 1154. a first mounting groove; 1155. a first magnet; 116. an inner wheel; 1161. a wheel body; 1162. a second mounting groove; 1163. a second magnet; 117. a rotating shaft; 118. a second connecting ring; 119. a second telescopic rod; 120. a second push plate; 121. a second flap; 122. a third seal plug; 1221. an L-shaped plate; 123. a third spring; 124. a fourth spring; 125. a pushing block; 1251. a limit button; 126. a lifting block; 127. unlocking the rod; 1271. a reset plate; 128. a fifth spring; 2. sinking cone; 201. a housing; 2011. a water inlet; 2012. a water outlet; 2013. a second pair of joints; 202. a first balancing weight; 203. a turbine; 204. a first connection ring; 205. a first telescopic rod; 2051. a slide tube; 2052. a slide bar; 2053. a seventh spring; 2054. a second balancing weight; 206. a first push plate; 2061. a first slider; 2062. a first slide rail; 2063. a second push rod; 207. a seat ring plate; 2071. a connection end; 3. a plugging mechanism; 301. a frame; 302. a chute; 303. a connecting plate; 3031. a slideway; 304. a first flap; 305. a first push rod; 4. a first closure plug; 401. a second slider; 5. an outer link; 501. inserting a connecting rod; 502. and (5) cleaning the brush.

Detailed Description

Example 1

As shown in fig. 1 to 8, the invention discloses a novel sample collection device, which adopts the technical scheme that the novel sample collection device comprises a sampling tube 1, a sinking cone 2 and a plugging mechanism 3, wherein the sampling tube 1 is of a cylindrical structure, an inner cavity 101 is arranged in the sampling tube, the inner cavity 101 is a cylindrical cavity, a sampling port 105 is formed in the side wall of the inner cavity 101, the sampling port 105 is used for communicating the inner cavity 101 with the outside, a sample storage tube 104 is arranged in the inner cavity 101 and is used for temporarily storing a water body entering the inner cavity 101 as a sample, the sample storage tube 104 is made of a light material, a first O-shaped ring 1041 is sleeved outside the sample storage tube 104 for sealing the joint, the first O-shaped ring 1041 not only can seal the joint, but also can provide larger friction force, and the sample storage tube 104 with the inside being empty is not slipped in the inner cavity 101 under the friction force, and the sample storage tube 104 is positioned below the sampling port 105. In order to automatically close the sampling port 105 after a certain sample is stored, a cavity 1012 is formed in the inner wall of the inner cavity 101, the cavity 1012 is of an I-shaped structure, the right ends of the upper transverse groove and the lower transverse groove are communicated with the inner cavity 101, a driving pin 108 is slidably connected in the lower transverse groove, one end of the driving pin 108 is inserted into the inner cavity 101, the upper surface and the lower surface of the end are inclined planes, a first spring 109 is pressed between the other end and the cavity 1012, a limiting pin 110 is slidably connected in the upper transverse groove of the cavity 1012, the right end of the limiting pin 110 is inserted into the inner cavity 101, the bottom surface of the end is inclined planes, a spring is pressed between the limiting pin 110 and the cavity 1012, in order to prevent liquid leakage, the left part of the limiting pin 110 is cylindrical, a second O-shaped ring 1101 is sleeved, the driving pin 108 is connected with the limiting pin 110 through a third connecting rod so as to synchronously move, a sealing plug 106 is slidably connected above the inner cavity 101, a sixth spring 107 is pressed between the top surface of the sealing plug 106 and the inner top surface of the inner cavity 101, and the bottom surface of the limiting pin 110 is slidably connected.

To save internal space, the upper portion of the outer wall of cartridge 104 has a protruding rim for depressing drive pin 108.

In order to prevent the air pressure below the sample storage barrel 104 from influencing the falling of the sample storage barrel, the side wall of the inner cavity 101 is provided with a vent pipe 102, the vent pipe 102 is of a T-shaped structure and comprises a vertical branch pipe part in the horizontal direction of a main pipe part, the branch pipe part is communicated with the inner cavity 101 below the sample storage barrel 104, the upper end and the lower end of the main pipe part are communicated with the outside, and the port of the upper end of the main pipe part is provided with internal threads for connecting a pipe joint.

In order to facilitate the sample taking out, the lower end of the inner cavity 101 is opened, a lower sealing cover 103 is connected at the opening through threads, a vent hole corresponding to the vent pipe 102 is arranged on the lower sealing cover 103, and the vent hole is opposite to the vent pipe 102 after the lower sealing cover 103 is screwed on the sampling tube 1. The bottom surface of the sample storage barrel 104 is provided with a sample discharge port, the sample discharge port is screwed with a sample discharge cover 1042 through threads, and in order to reduce residues, the inner bottom surface of the sample storage barrel 104 is a semi-elliptical bottom surface, and the sample discharge port is the lowest point and is similar to an elliptical head.

In order to be compatible with sampling requirements of different layers, a first butt joint 1014 is arranged on the top surface of the sampling tube 1, a butt joint ring 1013 is arranged on the bottom surface of the sampling tube 1, external threads are arranged on the first butt joint 1014, internal threads are arranged on the butt joint ring 1013, the external threads of the first butt joint 1014 of one sampling tube 1 can be engaged with the internal threads of the butt joint ring 1013 of the other sampling tube 1, after the butt joint is screwed, the upper end port of a vent tube 102 of the lower sampling tube 1 is opposite to a vent hole of a lower sealing cover 103 of the upper sampling tube 1, and the joint can be sealed by the threaded connection to prevent leakage of the butt joint.

In order to prevent water from entering the sampling tube 1 from the sampling port 105 in advance when the sampling tube 1 is lowered, a sinking cone 2 is arranged below the sampling tube 1, as shown in fig. 1, 4 and 7, the sinking cone 2 comprises a shell 201, a second butt joint 2013 is arranged on the top surface of the shell 201, the second butt joint 2013 has the same structure as the first butt joint 1014, can be in butt joint with a butt joint ring 1013, the lower part of the shell 201 is conical, the resistance in the sinking process can be reduced, a first balancing weight 202 is arranged at the lower part of the shell 201, the sinking speed can be improved, the inner top surface of the shell 201 is connected with a connecting shaft, the lower end of the connecting shaft is fixedly connected with a turbine 203, a water inlet 2011 and a water outlet 2012 are formed in the shell 201, the water inlet 2011 and the water outlet 2012 are respectively positioned on the upper side and the lower side of the turbine 203, in order to improve the pushing efficiency of the water flow entering the turbine 203, the water inlet 2011 is arranged as an inclined port, the inclined direction faces the rotating direction of the turbine 203, the water flow enters the shell 201 from the water inlet 2011, and the water flow overflows through the water outlet 2012 after pushing the turbine 203. In order to mechanically transfer the rotation of the turbine 203, a first connecting ring 204 is connected to the connecting shaft, a first telescopic rod 205 is arranged on the first connecting ring 204 in a ring array, as shown in fig. 8, the first telescopic rod 205 includes a sliding tube 2051 and a sliding rod 2052, the sliding rod 2052 is slidably connected in the sliding tube 2051, a seventh spring 2053 is installed between the sliding rod 2052 and the sliding tube 2051, when the connecting shaft drives the first connecting ring 204 to rotate, the sliding rod 2052 of the first telescopic rod 205 stretches out under the action of centrifugal force, and in order to improve the elongation and the pushing force of the sliding rod 2052, a second balancing weight 2054 is installed at the end part of the sliding rod 2052. The first sliding rail 2062 is installed in the casing 201, the first sliding rail 2062 further comprises a first push plate 206, the first push plate 206 is of a wave-shaped structure so as to fit the circular motion of the first telescopic rod 205, the first push plate 206 is provided with a first sliding block 2061, the first sliding block 2061 is in sliding connection with the first sliding rail 2062, a first reset spring is installed between the first sliding block 2061 and the first sliding rail 2062, the first push plate 206 is provided with a second push rod 2063 in the sliding direction, the casing 201 is provided with a through hole, the second push rod 2063 is in sliding connection with the through hole, and the through hole and the sampling port 105 are located on the same vertical plane.

As shown in fig. 4, 5 and 6, a frame 301 is installed on the casing 201, two frames 301 are symmetrically arranged on two sides of the through hole, a first turning plate 304 is connected to the frame 301 through a shaft, the first turning plate 304 is slidably connected with a second push rod 2063, a sliding groove 302 is formed in the frame 301, the sliding groove 302 is a groove in the horizontal direction, a first sealing plug 4 is slidably connected in the sliding groove 302, the first sealing plug 4 is coaxial with the sampling port 105, second sliding blocks 401 are arranged on two sides of the first sealing plug 4, and an eighth spring is installed between one end, close to the sampling cylinder 1, of the second sliding blocks 401 in the sliding groove 302 in a sliding manner so as to facilitate resetting. The first sealing plug 4 is installed on the connecting plate 303, as shown in fig. 5, a longitudinal slideway 3031 is opened on the connecting plate 303, the upper end of the first turning plate 304 is connected with a first push rod 305 in a shaft manner, the free end of the first push rod 305 is provided with a pushing block, and the pushing block is connected in a sliding manner in the slideway 3031. The upper side surface of the frame 301 is provided with threaded holes, the lower side surface is provided with bolt holes, the positions of the bolt holes are corresponding to those of the threaded holes, the sizes of the bolt holes are matched with those of the threaded holes, and the expanded frame 301 can be fixed on the original frame 301 through bolts and fixing plates so as to adapt to sampling barrels 1 with different numbers.

Working principle:

selecting a proper number of sampling barrels 1 and an expansion frame 301 with the same number as the sampling barrels 1 according to sampling requirements, butting all the sampling barrels 1 up and down, screwing a first butt joint 1014 into a butt joint ring 1013 during butting, assembling the frame 301, screwing bolts into threaded holes of a lower layer frame 301 through bolt holes of an upper layer frame 301 during assembling, screwing a second butt joint 2013 of a sinking cone 2 into the butt joint ring 1013 of the lowest layer sampling barrel 1, screwing a port of a top surface vent pipe 102 of the uppermost sampling barrel 1 into a quick pipe joint, splicing a vent pipe on the quick pipe joint, keeping the other end of the vent pipe always higher than the water surface, and tying the sampling barrel 1 with a rope for salvaging.

The sampling device is vertically placed into a river, the sinking cone 2 is placed at a certain height from the water surface, enough time is provided for the first sealing plug 4 to seal the sampling port 105, the sampling device is lowered, under the action of the first balancing weight 202 and the conical shell 201, the sampling device is quickly dropped into the river, in the dropping and sinking processes, air flow or water flow enters the shell 201 from the water inlet 2011, the turbine 203 is impacted, the turbine 203 is rotated, the air flow or water flow after passing through the turbine 203 leaves the shell 201 from the water outlet 2012, the subsequent air flow or water flow can continuously enter the shell 201, the rotation of the turbine 203 is maintained, the rotating turbine 203 drives the first connecting ring 204 to rotate, the first telescopic rod 205 is rotated, the second balancing weight 2054 installed at the end of the sliding rod 2052 of the first telescopic rod 205 generates centrifugal force in the rotating process, the seventh spring 2053 is stretched, the extended slide rod 2052 extends out of the sliding tube 2051, the extended first push plate 206 is pushed by the first push plate 206 to slide along the first slide rail 2, the second push plate 304 is pushed by the second push plate 304 to the first slide rod 304 to the first slide rail 304, the rotation of the first sliding rod 304 is pushed by the second push plate 304 in the first sliding rod 304 is pushed by the first sliding rod 304 in the direction, the first sliding rod 205 extends the first sliding rod 205 to the first sealing plug 301 is pushed by the first sealing plug 301 to the first sealing plug 303 is pushed by the first sealing plug 1, and the first sealing plug 303 is pushed by the first sealing plug 1 to the first sealing plug is pushed to rotate in the first sealing plug 1 at the end is at the same time.

When the sampling point is reached, the sampling device is no longer submerged, the turbine 203 is no longer impacted by water flow, the turbine 203 loses power and gradually stops rotating, the first telescopic rod 205 is no longer influenced by centrifugal force, the sliding rod 2052 is retracted into the sliding tube 2051 under the action of the seventh spring 2053, the first push plate 206 is reset under the action of the first reset spring, the first sealing plug 4 moves to open the sampling port 105 under the action of the eighth spring, water at the sampling point enters the inner cavity 101 of the sampling tube 1 from the sampling port 105 and then enters the sampling tube 104, the weight of the sampling tube 104 is gradually increased along with the increasing of the amount of the water entering, so that the air below the sampling tube 104 enters the air tube through the air tube 102 and is discharged outwards, after the sampling tube 104 contacts the driving pin 108, the sampling tube 104 is further submerged down along with the action of the driving pin 108, the driving pin 108 is extruded to slide into the cavity 1012, the first spring 109 is compressed, the limiting pin 110 synchronously enters the cavity 1012 along with the driving pin 108, after the limiting pin 110 completely enters the cavity 1012, the cavity 101, the weight of the water gradually increases, the weight of the sampling tube 104 begins to move downwards, the air tube is further discharged through the air tube 102, the air tube is further, and the air tube is further arranged, after the sampling tube 104 contacts the driving pin 108, and slides towards the cavity 1012, and is closed, and the sealing plug 106, and is ejected out.

After waiting for enough time to finish taking the water sample, the sampling personnel pulls the rope to recycle the sampling device.

When the water sample is required to be taken out, the sampling cylinders 1 and the sinking cone 2 are decomposed, the layer number marks are made, the sampling cylinders 1 are opened by screwing off the sealing cover 103, the sample discharging cover 1042 of the sample storing cylinder 104 is screwed, and the water sample is discharged from the sample discharging opening.

After taking out the water sample, screwing the lofting cover 1042 on the lofting hole, using a tool with a clamp or using fingers to clamp the screwing part of the lofting cover 1042, pulling the lofting cylinder 104 out of the sampling cylinder 1, cleaning the interior of the lofting cylinder 104 and the interior of the sampling cylinder 1, after cleaning, firstly, pushing the seal block 106 by the tool, pushing the seal block to the upper part of the limit pin 110, ejecting the limit pin 110 and the drive pin 108 under the action of the first spring 109, withdrawing the tool, pushing the seal block 106 by the tool from the sampling hole 105, resetting and installing the lofting cylinder 104, pushing the lofting cylinder 104 into the cavity 1012 by pushing the lower inclined surface of the drive pin 108 until the top surface of the lofting cylinder 104 is pushed against the lower surface of the retainer ring 1011. After the cartridge 104 passes through the driving pin 108, the driving pin 108 and the stopper pin 110 are ejected by the first spring 109, and the tool for pushing against the closure block 106 is retracted, and the setting-out cover 1042 and the lower closure cover 103 are sequentially installed.

Example 2

As shown in fig. 9 and 10, this embodiment is different from embodiment 1 in that the cartridge 104 and the closure plug 106 are directly connected using the first connecting rod 1043, and the drive pin 108, the stopper pin 110, and the stopper 1011 are not provided.

The outer edge of the sample storage barrel 104 is canceled, a sample discharge pipe 1045 is arranged at the sample discharge port, a sample discharge valve 1044 is arranged on the sample discharge pipe 1045, and the sample discharge valve 1044 is a hand valve.

Working principle:

the working principle of this embodiment is different from that of embodiment 1 in that after a water body enters the sample storage barrel 104 through the sampling port 105, the closing plug 106 descends together with the sample storage barrel 104 under the pulling of the first connecting rod 1043 until the closing plug 106 completely closes the sampling port 105.

When the sample is taken out, after the lower cover 103 is opened, the sample release valve 1044 is opened manually, and the water sample is released from the sample release tube 1045.

During cleaning maintenance, the lofting valve 1044 and the lofting tube 1045 are pulled to pull the lofting tube 104 and the sealing plug 106 out of the inner cavity 101, the lofting tube 104, the sealing plug 106 and the inner cavity 101 are cleaned, after cleaning is finished, the lofting tube 104 and the sealing plug 106 are arranged in the inner cavity 101 until the sealing plug 106 abuts against the inner top surface of the inner cavity 101, and the lower sealing cover 103 is arranged.

Compared with the embodiment 1, the embodiment has simpler structure, and the cleaning of the sampling device is more convenient and clean.

Example 3

As shown in fig. 11 to 23, this embodiment discloses a third embodiment of the present invention, the technical solution adopted is that the sampling tube comprises a sampling tube 1, a sinking cone 2 and an outer connecting rod 5, as shown in fig. 12, a sampling port 105 is arranged on the side wall of an inner cavity 101 in the sampling tube 1, an inner plate 111 is arranged in the inner cavity 101 to divide the inner cavity 101 into an upper part and a lower part, a sample storage tube 104 is slidingly connected in the lower part, a retaining ring 1011 is arranged, the structure of the sample storage tube 104 is the same as that of the sample storage tube 104 of embodiment 1, a vent pipe 102 is arranged on the side wall of the inner cavity 101, the vent pipe 102 is in a C-shaped structure, the lower end is communicated with the inner cavity 101 below the sample storage tube 104, the upper end is closed, a second blocking plug 1022 is slidingly connected with the upper end, a second spring 1023 is pressed between the second blocking plug 1022 and the closed end, a bronchus 1021 is communicated with the upper part of the vent pipe 102, one end of the bronchus 1021 is communicated with the vent pipe 102, the other end is communicated with the inner cavity 101 between the inner plate 111 and the retaining ring 1011, in order to reduce the possibility that water enters the bronchus 1021, the vent pipe 102 is arranged above the part close to the inner cavity 101. The cavity 101 is open at the lower end and is screwed with a lower closure 103 at the port.

As shown in fig. 12 and 13, the inner plate 111 is provided with a liquid passing hole 1112, the liquid passing hole 1112 is close to the sampling port 105, the inner plate 111 is provided with a liquid guiding tube 112, the liquid guiding tube 112 is an arc plate, the liquid guiding tube 112 covers the liquid passing hole 1112, the liquid guiding tube 112 is connected with the side wall of the inner cavity 101 and is coaxial with the sampling port 105, a third blocking plug 122 is slidably connected in the liquid guiding tube 112, the third blocking plug 122 is used for blocking the liquid passing hole 1112 and the sampling port 105, the bottom surface of the sampling port 105 is a plane and is flush with the top surface of the inner plate 111, the bottom surface of the third blocking plug 122 can completely cover the liquid passing hole 1112, the size of the third blocking plug 122 is matched with the size of the sampling port 105, when the third blocking plug 122 slides to the sampling port 105 along the liquid guiding tube 112, the liquid guiding tube 112 is blocked at first, the liquid passing hole 1112 is blocked, the third blocking plug 122 is continuously slid, and the sampling port 105 is blocked after the liquid enters the sampling port 105. To ensure tightness, the catheter 112, the inner plate 111 and the housing of the sampling tube 1 may be integrally formed.

The rear of the third sealing plug 122 is connected with an L-shaped plate 1221, a through groove is formed above the liquid guide tube 112, a spring bin 1121 is arranged, the spring bin 1121 and the through groove are all opened at one end close to the L-shaped plate 1221, the L-shaped plate 1221 can slide into the through groove and slide in the through groove, a third spring 123 is pressed between the L-shaped plate 1221 and the inner wall of the spring bin 1121, the third spring 123 can maintain the third sealing plug 122 in a normally open state, a top plate 1114 is arranged on the inner plate 111 in the sea, the top plate 1114 is in sliding connection with the rear end face of the third sealing plug 122, the third spring 123 pushes the L-shaped plate 1221 to drive the third sealing plug 122 to slide to be connected with the top plate 1114, and the third sealing plug 122 stops sliding.

In order to timely seal the liquid through hole 1112 and even the sampling port 105 after sampling is completed, as shown in fig. 14, a seat plate 1113 is further fixedly arranged on the top surface of the inner plate 111, and a push block 125 is slidably connected, a fourth spring 124 is pressed between the push block 125 and the seat plate 1113, the elastic coefficient of the fourth spring 124 is greater than that of the third spring 123, namely, the elastic force of the fourth spring 124 is greater than that of the third spring 123, and when the third seal block 122 is connected with the top plate 1114, the fourth spring 124 is in a compressed state, so that if the push block 125 is not limited at this time, the push block 125 pushes the third seal block 122 to slide under the action of the fourth spring 124, compresses the third spring 123, and seals the liquid through hole 1112 and the sampling port 105.

In order to limit the push block 125 and remove the limit when the sampling is completed, as shown in fig. 14 to 17, a limit button 1251 is disposed on the end surface of the push block 125 connected with the fourth spring 124, the portion of the limit button 1251 connected with the push block 125 is made of a material capable of elastic deformation, the buckle head is in a form of combining a rectangular block with a trapezoid block, a limit hole 1111 is disposed on the inner plate 111, the top surface of the limit hole is opened, the rectangular block of the buckle head is used for hooking the wall of the limit hole to form a limit after the buckle head enters the limit hole, the unlocking hole 1111 is communicated with the limit hole, a lock release rod 127 is slidingly connected in the unlocking hole 1111, the lock release rod 127 is opposite to the inclined surface of the trapezoid block, and the buckle head can be moved upwards by extruding the inclined surface of the trapezoid block through the lock release rod 127 to remove the limit. The unlocking hole 1111 is eccentrically disposed to avoid communication with the fluid passage hole 1112.

In order to drive the unlocking rod 127 to move when sampling is completed, a cavity groove 1012 is formed in the side wall of the inner cavity 101, the cavity groove 1012 is of an inverted T-shaped structure, a driving pin 108 is slidably connected in the transverse groove, which is communicated with the inner cavity 101 below the sample storage barrel 104, the driving pin 108 penetrates into the inner cavity 101, the end part of the driving pin 108 is inclined planes up and down, a first spring 109 is pressed between the driving pin 108 and the inner wall of the transverse groove, a slot hole which penetrates up and down is formed in the driving pin 108, a lifting block 126 is slidably connected in the vertical groove of the cavity groove 1012 up and down, the lower end of the lifting block 126 is of a wedge-shaped structure, the inclined planes are positioned in the slot hole of the driving pin 108 and face the inner cavity 101, and when the driving pin 108 moves into the transverse groove, the inclined planes of the lifting block 126 are extruded by the inner wall of the slot hole so that the lifting block 126 can lift. The unlocking hole 1111 is opened at one end far away from the limiting hole, the side surface of the upper end of the cavity 1012 is opened and communicated with the unlocking hole 1111, a wedge block is arranged at the end part of the unlocking rod 127 and is in sliding connection with the cavity 1012, the top surface of the lifting block 126 is in sliding connection with the wedge block inclined surface, when the lifting block 126 ascends, the unlocking rod 127 can slide towards the limiting hole direction by extruding the wedge block inclined surface, in order to facilitate the unlocking rod 127 to reset, as shown in fig. 16, a reset plate 1271 is arranged on the unlocking rod 127, the side surface of the unlocking hole 1111 is communicated with a reset hole, the reset plate 1271 is positioned in the reset hole, a fifth spring 128 is pressed between the reset plate 1271 and the reset hole, and the fifth spring 128 is positioned at one end of the reset plate 1271 close to the unlocking hole 1111.

In order to prevent the water from entering the sample storage barrel 104 too early when the sampling device sinks, the sampling port 105 needs to be closed in the sinking process, as shown in fig. 11, a sinking cone 2 is connected below the sampling barrel 1, as shown in fig. 18 and 19, the sinking cone 2 comprises a shell 201 and a ring plate 207, the shell 201 is of a conical shell structure, a first balancing weight 202 is arranged inside and used for improving the sinking speed, a turbine 203 is hoisted in the shell 201, the turbine 203 is fixedly connected with the shell 201, a water inlet 2011 and a water outlet 2012 are formed in the shell 201, the water inlet 2011 and the water outlet 2012 are formed in the same positions and shapes as in the embodiment 1, the ring plate 207 is connected with the sampling barrel 1, a ring groove is formed below the ring plate 207, and the shell 201 is hoisted in the ring groove and can slide along the ring groove to realize self rotation.

As shown in fig. 12, the top surface of the sampling tube 1 is connected with a top cover 114 through a second connecting rod 113, the second connecting rod 113 is provided with four groups, an inner space surrounded by the four groups of second connecting rods 113 is provided with an inner wheel 116, the inner wheel 116 is connected with a rotating shaft 117, the rotating shaft 117 is connected on the top wall of the inner cavity 101 in a shaft mode, a ring 115 is sleeved outside the four groups of second connecting rods 113, as shown in fig. 20 and 21, the ring 115 comprises a main frame ring 1151, the top surface of the main frame ring 1151 is provided with a ring groove, the inner ring surface of the main frame ring 1151 is provided with a first mounting groove 1154, the first mounting groove 1154 is obliquely arranged, a first magnet 1155 is arranged in the inner ring groove, and a magnetic gathering ring 1153 is arranged in the ring groove and used for guiding magnetic force lines so as to reduce the influence on magnetic impurities in a water body; as shown in fig. 22, the inner wheel 116 further includes a wheel body 1161, a second mounting groove 1162 is formed on an outer side surface of the wheel body, the second mounting groove 1162 is opposite to the first mounting groove 1154, a second magnet 1163 is mounted in the second mounting groove 1162, the second magnet 1163 is homopolar opposite to the first magnet 1155, and a positional relationship between the first magnet 1155 and the second magnet 1163 is shown in fig. 23.

When the ring 115 rotates, the inner wheel 116 can be pushed to rotate by the repulsive force of the magnet, in order to drive the ring 115 to rotate, the outer ring surface is provided with a jack 1152, as shown in fig. 11, the outer connecting rod 5 is fixedly connected to the outer part of the shell 201 of the sinking cone 2, the side surface of the outer connecting rod 5 is provided with a bolt hole, the bolt hole is opposite to the jack 1152, the inserting rod 501 is inserted into the jack 1152, the end surface of the inserting rod 501 is provided with a threaded hole, and the fixing bolt passes through the bolt hole of the outer connecting rod 5 and is selected into the threaded hole of the inserting rod 501, so that the fixed connection between the inserting rod 501 and the outer connecting rod 5 is completed, and the ring 115 can rotate along with the shell 201.

As shown in fig. 12, the lower end of the rotating shaft 117 extends into the inner cavity 101, the lower end is connected with a second connecting ring 118, a second telescopic rod 119 is arranged on an annular array of the outer ring surface of the second connecting ring 118, and the structure of the second telescopic rod 119 is the same as that of the first telescopic rod 205. The inner wall of the inner cavity 101 is provided with a second sliding rail 1015, the second sliding rail 1015 is connected with a second push plate 120 in a sliding manner, the second push plate 120 has the same structure as the first push plate 206, the top surface is provided with a second sliding block 401, the second sliding block 401 is connected with the second sliding rail 1015 in a sliding manner, and a second reset spring is pressed between the second sliding block 401 and the second sliding rail 1015. The inner cavity 101 is also connected with a second turning plate 121 in a shaft way, the upper part of the second turning plate 121 is connected with the second pushing plate 120 in a sliding way, and the lower part of the second turning plate 121 is connected with an L-shaped plate 1221 of the third sealing plug 122 in a sliding way.

In order to prevent the large sundries from covering the sampling port 105 in the sinking process from affecting the water inflow of the subsequent sampling port 105, a cleaning brush 502 is arranged on the outer connecting rod 5, and the cleaning brush 502 corresponds to the sampling port 105 in position.

In order to adapt to the requirements of different sampling layers, a connector 1141 is arranged on the top surface of the top cover 114, a docking ring 1013 is arranged on the bottom surface of the sampling tube 1, a connecting end 2071 is arranged on the top surface of the seat ring plate 207 of the sinking cone 2, the structures of the connector 1141 and the connecting end 2071 are the same as those of the first docking head 1014 and the second docking head 2013 of the embodiment 1, and the structure of the docking ring 1013 is the same as that of the docking ring 1013 of the embodiment 1; in order to prevent loosening of the connection between the connection end 2071 and the docking ring 1013 when the housing 201 is rotated, the rotation direction of the turbine 203 and the screwing direction when the connection end 2071 and the docking ring 1013 are screwed are made to be the same direction. The top surface of the outer connecting rod 5 is provided with a threaded hole, an extension rod is led in, the extension rod is a vertical rod, the upper end of the extension rod is provided with a threaded hole, the lower end of the extension rod is provided with a stud, the extension rod is provided with a bolt hole corresponding to the position of the jack 1152, and a cleaning brush 502 corresponding to the position of the sampling port 105 is connected with the extension rod.

Working principle:

selecting a proper number of sampling barrels 1 and expansion rods with the same number as the sampling barrels 1 according to sampling requirements, vertically butting all the sampling barrels 1, screwing a connector 1141 into a butting ring 1013 during butting, assembling an outer connecting rod 5, inserting a stud of the expansion rod into a threaded hole of the upper end face of the lower outer connecting rod 5 or the expansion rod during assembling, inserting a plugging rod 501 into a jack 1152 of a ring 115, screwing a connecting end 2071 of a sinking cone 2 into the butting ring 1013 of the lowest sampling barrel 1, fixing the plugging rod 501 with the outer connecting rod 5 and the expansion rod by using bolts, and tying the sampling barrels 1 by using ropes so as to facilitate salvaging.

When the sampling device is vertically placed into a river, the sinking cone 2 is placed at a certain height from the water surface, so that enough time is provided for the third sealing plug 122 to seal the sampling port 105, the sampling device is lowered, under the action of the first balancing weight 202 and the conical shell 201, the sampling device rapidly falls down and sinks, in the falling and sinking processes, air flow or water flow enters the shell 201 from the water inlet 2011, and impacts the turbine 203, the turbine 203 drives the shell 201 to rotate, the shell 201 drives the ring 115 to rotate through the outer connecting rod 5, the expansion rod and the plugging rod 501, the first magnet 1155 of the ring 115 drives the inner ring 116 to rotate through the repulsive force acting on the second magnet 1163 of the inner ring 116, the inner ring 116 drives the second connecting ring 118 to rotate through the rotating shaft 117, so that the second telescopic rod 119 rotates and generates centrifugal force, the second telescopic rod stretches under the action of the centrifugal force, the second push plate 120 slides along the second slide rail 1015, the second push plate 120 pushes the second flip plate 121 to rotate, the lower end of the second flip plate 1221 further pushes the third sealing plug 122 to slide towards the direction of the sampling port 105, and the sampling port 123 sequentially compresses the inner ring 116 and the sampling port 105 through the elastic spring 123, and the inner ring 105 is compressed in the process.

After reaching the sampling point, the sampling device stops sinking, the turbine 203 loses power and stops rotating gradually, so that the second telescopic rod 119 stops rotating, the centrifugal force disappears, the second telescopic rod 119 is retracted, the second push plate 120 is reset under the action of the second reset spring, the third spring 123 pushes the L-shaped plate 1221 to drive the third plug 122 to move to open the sampling port 105 and the liquid passing hole 1112, water enters the liquid guide tube 112 through the sampling port 105 and then enters the inner cavity 101 through the liquid passing hole 1112, finally enters the sample storage barrel 104, the weight rises, the sample storage barrel 104 starts sinking along with the increase of the water in the sample storage barrel 104, gas below enters the vent pipe 102, the second plug 1022 is pushed to compress the second spring 1023, the bronchus 1021 is opened, the gas passes through the bronchus 1021 to reach the inner cavity 101 above the sample storage barrel 104, and after the gas pressure in the vent pipe 102 drops, the second plug 1022 resets under the action of the second spring 1023.

As the cartridge 104 sinks, after the outer edge of the cartridge 104 contacts the driving pin 108, as the cartridge 104 continues to sink, the outer edge of the cartridge 104 presses down the inclined surface of the driving pin 108, so that the driving pin 108 slides into the cavity 1012, the driving pin 108 presses the inclined surface of the lifting block 126 to lift the lifting block 126, the lifting block 126 presses the wedge-shaped block inclined surface of the unlocking rod 127, so that the unlocking rod 127 moves towards the unlocking hole 1111 and compresses the fifth spring 128, the unlocking rod 127 presses the inclined surface of the limit button 1251, the button moves upwards, the limit is released, the push block 125 pops up under the action of the fourth spring 124, and the third seal plug 122 is pushed to seal the liquid through hole and the sampling port 105, so that the sampling 1112 is completed.

When a water sample needs to be taken out, the inserting rod 501 is firstly disassembled, the sampling barrels 1 and the sinking cone 2 are respectively disassembled, the layer number marks are made, the sealing cover 103 is unscrewed to open the sampling barrels 1, the sample cover 1042 of the sample storage barrel 104 is screwed, and the water sample is discharged from the sample outlet.

After the water sample is taken out, the lofting cover 1042 is screwed on the lofting port, a tool with a clamp or a finger is used for clamping the screwing position of the lofting cover 1042 to pull down, the lofting cylinder 104 is pulled out of the sampling cylinder 1, the interior of the lofting cylinder 104 and the interior of the sampling cylinder 1 are cleaned, after the cleaning, the lofting cylinder 104 is reset and installed, the lofting cylinder 104 props against the inclined plane below the driving pin 108 to enable the lofting cylinder 104 to be received in the cavity 1012, and the lofting cylinder 104 is continuously pushed up until the top surface of the lofting cylinder 104 props against the lower surface of the retaining ring 1011. After the cartridge 104 passes through the drive pin 108, the drive pin 108 ejects under the action of the first spring 109, and the lofting cap 1042 and the lower cover 103 are mounted in sequence.

The mechanical connection according to the invention is a customary practice adopted by the person skilled in the art, and the technical teaching can be obtained by a limited number of tests, which belongs to the common general knowledge.

The components not described in detail herein are prior art.

Although the specific embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes and modifications without inventive labor may be made within the scope of the present invention without departing from the spirit of the present invention, which is within the scope of the present invention.

Claims

1. The utility model provides a novel sample collection device, includes sampling tube (1), there is sample connection (105) on sampling tube (1), its characterized in that: a sample storage cylinder (104) is connected in a sliding manner to the sampling cylinder (1), a sealing mechanism is arranged on the sampling cylinder (1), and the sealing mechanism is connected with the sampling port (105) in a sliding manner; the bottom surface of the sampling tube (1) is opened, a lower sealing cover (103) is detachably connected with the sampling tube, a lofting port is arranged on the bottom surface of the sample storage tube (104), and a lofting piece is arranged on the lofting port; the sampling tube (1) is also connected with a rotary leakage-proof mechanism.

2. The novel sample collection device of claim 1, wherein: the rotary leakage-proof mechanism further comprises a sinking cone (2) connected below the sampling tube (1), a first balancing weight (202) and a rotary centrifugal mechanism are arranged in a shell (201) of the sinking cone (2), a water passing hole is formed in the shell (201), the water passing hole corresponds to the position of the rotary centrifugal mechanism, the rotary centrifugal mechanism is connected with a transmission mechanism, the transmission mechanism is connected with a blocking mechanism (3), the blocking mechanism (3) is connected with a first blocking plug (4), and the first blocking plug (4) corresponds to the position of the sampling port (105) and is matched with the sampling port in size.

3. The novel sample collection device of claim 2, wherein: the rotary centrifugal mechanism further comprises a turbine (203) and a first telescopic rod (205), the turbine (203) is connected in the shell (201) in a shaft mode, the first telescopic rod (205) is fixedly connected to a connecting shaft of the turbine (203), the first telescopic rod (205) further comprises a sliding tube (2051) and a sliding rod (2052), the sliding rod (2052) is connected in a sliding mode in the sliding tube (2051), a seventh spring (2053) is arranged between the sliding rod (2052) and the sliding tube (2051), the seventh spring (2053) is a tension spring, and a second balancing weight (2054) is arranged in the free end of the sliding rod (2052); the transmission mechanism further comprises a first push plate (206), a first sliding rail (2062) is arranged in the shell (201), the first push plate (206) is connected in a sliding way in the first sliding rail (2062), a first reset spring is arranged between the first push plate (206) and the first sliding rail (2062), the first push plate (206) is connected with the free end of the sliding rod (2052) of the first telescopic rod (205) in a sliding way, a second push rod (2063) is further connected to the first push plate (206), a through hole is formed in the shell (201), and the second push rod (2063) is connected in a sliding way in the through hole and is connected with the plugging mechanism (3) in a sliding way; the water passing hole further comprises a water inlet (2011) and a water outlet (2012), the water inlet (2011) and the water outlet (2012) are respectively positioned at the upper side and the lower side of the turbine (203), and the water inlet (2011) is an inclined hole and is inclined to the rotation direction of the turbine (203); the housing (201) is a conical shell.

4. A novel sample collection device according to claim 3, wherein: the plugging mechanism (3) further comprises two frames (301) and a connecting plate (303), wherein the two frames (301) are connected to the shell (201), a sliding groove (302) is formed in the frame (301), second sliding blocks (401) are arranged on two sides of the first plugging block (4), the second sliding blocks (401) are connected in a sliding mode in the sliding grooves (302), and the first plugging block (4) is connected to the connecting plate (303); a first turning plate (304) is hinged between the two frames (301), the first turning plate (304) is in sliding connection with the second push rod (2063), a first push rod (305) is hinged on the first turning plate (304), a slideway (3031) is arranged on the connecting plate (303), and the free end of the first push rod (305) is in sliding connection with the slideway (3031).

5. The novel sample collection device of claim 4, wherein: an inner cavity (101) is arranged in the sampling tube (1), the sample storage tube (104) is connected in a sliding way in the inner cavity (101), a first O-shaped ring (1041) is arranged between the sample storage tube (104) and the inner cavity (101), the sample storage tube (104) is positioned below the sampling port (105), the sealing mechanism is a sealing plug (106),

The sealing plug (106) is connected in a sliding way in the inner cavity (101), the sealing plug (106) is positioned above the sampling port (105), and a sixth spring (107) is arranged between the sealing plug (106) and the inner cavity (101); a retainer ring (1011) is fixedly connected in the inner cavity (101), the retainer ring (1011) is positioned below the sampling port (105), and the sample storage cylinder (104) is in sliding connection with the bottom surface of the retainer ring (1011); the side wall of the inner cavity (101) is provided with a cavity groove (1012), the cavity groove (1012) is I-shaped, one side of the cavity groove is communicated with the inner cavity (101), a driving pin (108) is connected in the inner slide of the cavity groove (1012), one end of the driving pin (108) stretches into the inner cavity (101), the upper surface and the lower surface of the end are inclined planes, a first spring (109) is pressed between the driving pin (108) and the cavity groove (1012), the driving pin (108) is connected with a limiting pin (110) through a third connecting rod, the limiting pin (110) is connected with the bottom surface of the sealing plug (106) in a sliding mode, the bottom surface of the end of the limiting pin (110) is the inclined plane, and a second O-shaped ring (1101) is sleeved on the limiting pin (110); the side wall of the inner cavity (101) is provided with a vent pipe (102), the vent pipe (102) is of a T-shaped structure, the main pipe part is longitudinal, two ends of the main pipe part are communicated with the outside, the branch pipe part is transverse, and the branch pipe part is communicated with the inner cavity (101) below the sample storage barrel (104); the sample storage barrel (104) is connected with the lower sealing cover (103) through threads, and the lower sealing cover (103) is provided with a vent hole corresponding to the vent pipe (102); the sample placing piece is a sample placing cover (1042), and the sample placing cover (1042) is in threaded connection with the sample placing opening; the top surface of the sampling tube (1) is provided with a first butt joint (1014), the bottom surface of the sampling tube is provided with a butt joint ring (1013), the outer diameter of the first butt joint (1014) is matched with the inner diameter of the butt joint ring (1013), the first butt joint (1014) is provided with external threads, and the butt joint ring (1013) is provided with internal threads matched with the external threads; the top surface of the shell (201) of the sunk cone (2) is provided with a second butt joint (2013), and the second butt joint (2013) and the first butt joint (1014) are the same in size and have the same external threads.

6. The novel sample collection device of claim 4, wherein: an inner cavity (101) is formed in the sampling tube (1), the sample storage tube (104) is connected in a sliding mode in the inner cavity (101), a first O-shaped ring (1041) is arranged between the sample storage tube (104) and the inner cavity (101), the sample storage tube (104) is located below the sampling port (105), the sealing mechanism is a sealing plug (106), the sealing plug (106) is connected in a sliding mode in the inner cavity (101), the sealing plug (106) is located above the sampling port (105), and the sealing plug (106) is connected with the sample storage tube (104) through a first connecting rod (1043); the side wall of the inner cavity (101) is provided with a vent pipe (102), the vent pipe (102) is of a T-shaped structure, the main pipe part is longitudinal, two ends of the main pipe part are communicated with the outside, the branch pipe part is transverse, and the branch pipe part is communicated with the inner cavity (101) below the sample storage barrel (104); the sample storage barrel (104) is connected with the lower sealing cover (103) through threads, and the lower sealing cover (103) is provided with a vent hole corresponding to the vent pipe (102); the sample placing piece is a sample placing pipe (1045), the sample placing pipe (1045) is connected with the sample placing port, and a sample placing valve (1044) is arranged on the sample placing pipe (1045); the top surface of the sampling tube (1) is provided with a first butt joint (1014), the bottom surface of the sampling tube is provided with a butt joint ring (1013), the outer diameter of the first butt joint (1014) is matched with the inner diameter of the butt joint ring (1013), the first butt joint (1014) is provided with external threads, and the butt joint ring (1013) is provided with internal threads matched with the external threads; the top surface of the shell (201) of the sunk cone (2) is provided with a second butt joint (2013), and the second butt joint (2013) and the first butt joint (1014) are the same in size and have the same external threads.

7. The novel sample collection device of claim 1, wherein: the rotary leakage-proof mechanism further comprises a sinking cone (2) connected below the sampling tube (1), the sinking cone (2) further comprises a shell (201) and a seat ring plate (207), the shell (201) is rotationally connected with the seat ring plate (207), the shell (201) is a conical shell, a first balancing weight (202) is arranged inside the shell, a turbine (203) is hung on the inner top surface of the shell (201), the turbine (203) is fixedly connected with the shell (201), a water inlet (2011) and a water outlet (2012) are formed in the shell (201), the water inlet (2011) and the water outlet (2012) are respectively positioned on the upper side and the lower side of the turbine (203),

the water inlet (2011) is an inclined hole and is inclined to the rotation direction of the turbine (203).

8. The novel sample collection device of claim 7, wherein: an inner cavity (101) is formed in the sampling tube (1), the sample storage tube (104) is connected in a sliding mode in the inner cavity (101), a first O-shaped ring (1041) is arranged between the sample storage tube (104) and the inner cavity (101), and the sample storage tube (104) is located below the sampling port (105); a retainer ring (1011) is fixedly connected in the inner cavity (101), the retainer ring (1011) is positioned below the sampling port (105), and the sample storage cylinder (104) is in sliding connection with the bottom surface of the retainer ring (1011); an inner plate (111) is arranged in the inner cavity (101), the top surface of the inner plate (111) is flush with the bottom surface of the sampling port (105), a liquid passing hole (1112) is formed in the inner plate (111), a liquid guide tube (112) is arranged on the inner plate (111), the liquid guide tube (112) is an arc-shaped plate and is buckled on the inner plate (111), the liquid passing hole (1112) is arranged in the liquid guide tube (112), the liquid guide tube (112) and the sampling port (105) are opposite in position, one end, close to the sampling port (105), is connected with the side wall of the inner cavity (101), the sealing mechanism is a third sealing plug (122), the third sealing plug (122) is slidably connected in the liquid guide tube (112), the third sealing plug (122) is corresponding in position and is matched with the position of the sampling port (105), the contact surface area of the third sealing plug (122) and the inner plate (111) is larger than the top surface area of the liquid passing hole (1112), one end, close to the sampling port (105) is connected with the side wall of the inner cavity (101), a spring (1121) is arranged on the third sealing plug (122), and the spring (1121) is arranged between the spring (1121) and the spring (1121); an ejecting mechanism is arranged on the inner plate (111), a triggering mechanism is arranged on the inner side wall of the inner cavity (101), and the triggering mechanism is connected with the ejecting mechanism; the top surface of the shell of the inner cavity (101) is connected with a top cover (114) through a second connecting rod (113), a plurality of second connecting rods (113) are sleeved with rings (115) on the outer side of each second connecting rod (113), an inner wheel (116) is arranged on the inner side of each second connecting rod, a centrifugal plugging mechanism is arranged in the inner cavity (101) and connected with the inner wheel (116), and magnets with the same poles opposite to each other are arranged on the rings (115) and the inner wheels (116); the side wall of the inner cavity (101) is also provided with a vent pipe (102), one end of the vent pipe (102) is positioned below the sample storage barrel (104), the other end of the vent pipe is closed, a second sealing plug (1022) is connected with the closed end in a sliding manner, a second spring (1023) is pressed between the second sealing plug (1022) and the closed end, the vent pipe also comprises a bronchus (1021), one end of the bronchus (1021) is laterally communicated with the vent pipe (102), the other end of the bronchus (1021) is communicated with the inner cavity (101) between the inner plate (111) and the retaining ring (1011), and the second sealing plug (1022) is connected with a port of the bronchus (1021) in a sliding manner; an outer connecting rod (5) is connected to the shell (201) of the sinking cone (2), the outer connecting rod (5) is connected with the ring (115) through a plug-in rod (501), a cleaning brush (502) is also connected to the outer connecting rod (5), and the cleaning brush (502) corresponds to the sampling port (105); the top cover (114) is provided with a connector (1141), the bottom surface of the sampling tube (1) is provided with a butting ring (1013), the connector (1141) is provided with external threads, and the butting ring (1013) is provided with internal threads matched with the external threads of the connector (1141); the top surface of the seat ring plate (207) of the sinking cone (2) is provided with a connecting end (2071), and the structure of the connecting end (2071) is the same as that of the connector (1141).

9. The novel sample collection device of claim 8, wherein: the ejecting mechanism further comprises a fourth spring (124) and a push block (125), a seat plate (1113) is arranged on the top surface of the inner plate (111), the push block (125) is connected to the inner plate (111) in a sliding mode, the fourth spring (124) is arranged between one side of the push block (125) and the seat plate (1113) in a pressing mode, the other side of the push block is connected to the third sealing plug (122) in a sliding mode, a limit buckle (1251) is connected to the push block (125), a limit groove is formed in the inner plate (111), and the limit buckle (1251) is connected to the limit groove in a sliding mode; the triggering mechanism further comprises a driving pin (108), a lifting block (126) and an unlocking rod (127), wherein a cavity groove (1012) is formed in the side wall of the inner cavity (101), the cavity groove (1012) is a longitudinal groove, the upper end and the lower end of the cavity groove are both transversely opened towards the direction of the inner cavity (101), the lower end of the cavity groove (1012) is communicated with the inner cavity (101), the driving pin (108) is connected in the sliding mode in the cavity groove (1012), a first spring (109) is pressed between the driving pin (108) and the cavity groove (1012), the end part of the driving pin (108) is inserted into the inner cavity (101) and corresponds to the position of the sample storage barrel (104), the upper end part and the lower end part of the driving pin (108) are inclined planes, a slotted hole which is opened up and down is formed in the lower end of the lifting block (126) and is connected in the sliding mode in the slotted hole; an unlocking hole (1111) is formed in the inner plate (111), one end of the unlocking hole (1111) is opened and is matched with the opening position of the upper end of the cavity groove (1012) in size, the other end of the unlocking hole is communicated with the limiting groove, the unlocking rod (127) is connected in a sliding mode in the unlocking hole (1111), a wedge block is arranged at one end of the unlocking rod (127), the inner plate is connected in a sliding mode in the cavity groove (1012), the top surface of the lifting block (126) is connected with the inclined surface of the wedge block in a sliding mode, and a fifth spring (128) is arranged between the unlocking rod (127) and the unlocking hole (1111) in a pressing mode.

10. The novel sample collection device of claim 8, wherein: the centrifugal plugging mechanism further comprises a rotating shaft (117) and a second pushing plate (120), the rotating shaft (117) is connected with the top surface of the shell of the inner cavity (101) through a shaft, the upper end of the rotating shaft is connected with the inner wheel (116), the lower end of the rotating shaft is arranged in the inner cavity (101) and is connected with a second telescopic rod (119), the inner cavity (101) is internally connected with a second sliding rail (1015), the second sliding rail (1015) is connected with the second pushing plate (120) in a sliding manner, a second reset spring is arranged between the second pushing plate (120) and the second sliding rail (1015), the free end of the second telescopic rod (119) is connected with the second pushing plate (120) in a sliding manner, the inner shaft of the inner cavity (101) is connected with a second turning plate (121), the upper portion of the second turning plate (121) is connected with the second pushing plate (120) in a sliding manner, and the lower end of the second turning plate is connected with the L-shaped plate (1221) in a sliding manner.

11. The novel sample collection device of claim 8, wherein: the ring (115) further comprises a main frame ring (1151), a ring groove is formed in the top surface of the main frame ring (1151), a jack (1152) is formed in the outer ring surface of the main frame ring, the plug rod (501) is plugged in the jack (1152), a first mounting groove (1154) is formed in the inner ring surface of the main frame ring (1151), the first mounting groove (1154) is obliquely arranged, a first magnet (1155) is arranged in the first mounting groove, and a magnetic gathering ring (1153) is arranged in the ring groove; the inner wheel (116) further comprises a wheel body (1161), a second mounting groove (1162) is formed in the outer side face of the inner wheel, the second mounting groove (1162) is opposite to the first mounting groove (1154), a second magnet (1163) is mounted in the second mounting groove (1162), and the second magnet (1163) is homopolar opposite to the first magnet (1155).