CN111257047B - Environment monitoring water sample collecting and storing device and method - Google Patents

Abstract

The invention discloses an environmental monitoring water sample collecting and storing device and method, and aims to overcome the defects of inconvenient operation and low working efficiency of environmental monitoring water sample collecting. The device comprises a collection seat, wherein the lower end of the collection seat is connected with a pull rope, a plurality of collection holes are uniformly distributed on the collection seat, a slidable sealed floating block is placed in each collection hole, the upper end of each collection hole is connected with an end cover, and a liquid inlet hole is formed in each end cover; the upper surface of the end cover is connected with a cover plate, an air bag cushion is tightly connected between the cover plate and the end cover, the air bag cushion tightly covers the liquid inlet hole, and a liquid passing gap is arranged between the cover plate and the end cover; the installation launches torsional spring and guide arm on the end cover, corresponds with the guide arm on the apron and is equipped with and dodges the hole, launches torsional spring one end and end cover fastening connection, is equipped with the needle of stabbing towards the setting of gasbag pad on the other end, and the cover is equipped with sliding sleeve and lower sliding sleeve on the guide arm, goes up the sliding sleeve and stabs and is connected the acting as go-between the needle, and the lower sliding sleeve is gone up and is connected the lead wire, and the lead wire passes and dodges the hole, and the body is connected to the lead wire upper end.

Description

A kind of environmental monitoring water sample collection and storage device and method

technical field

The invention relates to the technical field of environmental monitoring, and more particularly, to a device and method for collecting and storing water samples for environmental monitoring.

Background technique

At present, when conducting environmental monitoring, it is necessary to sample and test water samples at different water depths. The commonly used method is to lower the liquid inlet of the sampling pipe to the specified water depth position, and then extract the water samples from this position, and place the water samples after they are collected. to other storage facilities for storage. This sampling method is inconvenient to operate, and the collected water samples need to be stored in other equipment, which increases equipment investment and reduces work efficiency.

SUMMARY OF THE INVENTION

The invention overcomes the shortcomings of inconvenient operation and low work efficiency for environmental monitoring water sample collection, and provides an environmental monitoring water sample collection and storage device and method, which greatly facilitates environmental monitoring water sample collection operations and improves work efficiency.

In order to solve the above technical problems, the present invention adopts the following technical solutions: an environmental monitoring water sample collection and storage device, comprising a column-shaped collection seat, the lower end of the collection seat is connected with a pull rope, a plurality of collection holes are evenly arranged on the collection seat, and the collection holes are placed in A slidable closed float, the upper end of the collection hole is connected to an end cover, and the end cover is provided with a liquid inlet hole. Several lower magnetic blocks are installed in the closed float near the upper surface, and several upper magnetic blocks are installed in the end cover near the liquid inlet hole. After the collection hole is full of water samples, the closed float floats up, and the lower magnetic block and the upper magnetic block attract each other so that the closed float tightly covers the liquid inlet; Connect the airbag cushion, the airbag cushion is tightly covered with the liquid inlet hole, and there is a liquid passage gap between the cover plate and the end cover; the end cover is installed with an ejection torsion spring and a guide rod, and the cover plate and the guide rod are provided with corresponding avoidance holes, and the ejection One end of the torsion spring is firmly connected with the end cover, and the other end is provided with a poking pin facing the airbag cushion. The guide rod is covered with an upper sliding sleeve and a sliding sleeve, a pull wire is connected between the upper sliding sleeve and the poking pin, and the sliding sleeve is connected with The lead wire goes through the avoidance hole, the upper end of the lead wire is connected to the floating body, and the length of the lead wire corresponds to the sampling depth of the water sample. The airbag cushion is punctured, the liquid inlet hole is opened, and the water sample flows into the collection hole.

During the water sample collection operation, according to the water samples at different depths that need to be sampled, cut out a number of leads corresponding to the depths, connect the lower ends of the leads to the sliding sleeve, and connect the upper ends of the leads to the floating body; Sampling the water area, hold the pull rope, the collection base sinks, and the lead wire is pulled down as the collection base sinks in the initial stage, and the floating body floats on the water surface. After the collecting seat sinks to the first sampling position, the lead wire corresponding to the depth is straightened by the buoyancy of the floating body, and the collecting seat continues to sink, so that the sliding sleeve connected with the lower end of the lead wire slides away from the guide rod and slides upward. The sleeve is pushed away from the guide rod by the sliding sleeve. Under the action of the ejection torsion spring, the poking needle is ejected to the airbag cushion and punctured the airbag cushion. After the airbag cushion is deflated, the liquid inlet hole is opened, and the water sample at this depth position flows into the collection hole. After the water sample is filled, the closed float floats up, and the lower magnetic block and the upper magnetic block attract each other so that the closed float tightly covers the liquid inlet hole; after the collection seat continues to sink to several sampling positions below, the above actions are repeated for each position. Sampling; after the sampling is completed, pull the rope upwards, pull the collection seat out of the water surface, and cover the cover tightly, so that the cover is tightly connected to the upper surface of the end cover, so that the liquid inlet hole is tightly closed, and the collected water sample is directly Store it in the collection hole and bring the entire collection base back. With the sinking of the collecting seat, water samples at different water depths can be collected, and sampling at multiple locations can be completed at one time of sinking, and the work efficiency is high. The environmental monitoring water sample collection and storage device greatly facilitates the collection and operation of environmental monitoring water samples and improves work efficiency.

Preferably, a positioning magnetic block is provided at the lower end of the closed floating block, a fixed magnetic block is installed on the bottom surface of the collection hole, and the positioning magnetic block and the fixed magnetic block attract each other. Before the inlet hole is opened, the closing float is placed at the bottom of the collection hole. The positioning magnetic block and the fixed magnetic block attract each other so that the closed floating block can be reliably placed at the bottom of the collection hole.

Preferably, a plurality of positioning bumps are evenly distributed on the outer edge of the closed floating block, and the positioning bumps are arranged close to the inner wall of the collecting hole. The arrangement of the positioning bumps makes the upward sliding of the closed floating block more stable and reliable, and ensures the sealing performance after the closed floating block rises to the top cover and the liquid inlet hole.

Preferably, the upper surface of the closed floating block is a plane structure, and the end surface of the end cover facing the collecting hole is a plane structure. After the plane structures are attached to each other, the contact area is large and the sealing effect is good.

Preferably, the lower end of the collecting base is detachably connected to the counterweight block, and the pull rope is connected to the lower end of the counterweight block. The counterweight lowers the height of the center of gravity of the entire collection base, making the sinking process of the collection base more stable.

Preferably, a layer of sealing gasket is provided on the lower surface of the cover plate, the cover plate is connected with screws, and the screws are threadedly connected to the upper end of the end cover and can tightly cover the cover plate on the upper surface of the end cover. After the collecting seat is pulled away from the water surface, the screws are further tightened so that the cover plate is tightly connected to the upper surface of the end cover, and the sealing gasket improves the sealing performance of the connection.

Preferably, a ring-shaped sealing groove is provided on the upper surface of the end cover near the edge of the liquid inlet hole, the two sides of the sealing groove and the upper surface of the end cover are arc-transitioned, and the airbag cushion is filled with the sealing groove. The sealing groove improves the rear reliability of the airbag cushion connection and is not easy to slide.

Preferably, an installation groove is provided on the upper surface of the end cover near the edge of the airbag cushion, and the ejection torsion spring is installed in the installation groove. The ejection torsion spring is installed in the installation groove, and the installation is convenient and reliable.

Preferably, a filter screen plate is installed on the upper end of the liquid inlet hole. On the one hand, the filter screen plate plays the role of filtering, and on the other hand, it plays a good supporting role for the airbag cushion, so that the airbag cushion cover is more reliable in the liquid inlet hole.

A water sample collection method for an environmental monitoring water sample collection and storage device, comprising the following steps: Step 1: According to the water samples at different depths that need to be sampled, intercept a number of leads corresponding to the depths one-to-one, and connect the lower ends of the leads to the Put the sliding sleeve on, and connect the floating body to the upper end of the lead; the second step, put the collection base into the sampling water area, hold the pull rope, and the collection base sinks. In the initial stage, as the collection base sinks, the lead is pulled down, and the floating body floats on the water surface; The third step: After the collecting seat sinks to the first sampling position, the lead wire corresponding to the depth is straightened under the buoyancy of the floating body, and the collecting seat continues to sink, so that the sliding sleeve connected with the lower end of the lead wire slides away from the guide wire. The upper sliding sleeve is pushed away from the guide rod by the sliding sleeve. Under the action of the ejection torsion spring, the poking needle is ejected to the airbag cushion and punctured the airbag cushion. After the airbag cushion is deflated, the liquid inlet hole opens, and the water sample at this depth flows into the collection hole. , after the collection hole is full of water samples, the closed floating block floats up, and the lower magnetic block and the upper magnetic block attract each other so that the closed floating block tightly covers the liquid inlet hole; the fourth step, after the collection seat continues to sink to several sampling positions below, The third step is repeated for each position to complete the sampling; the fifth step, after the sampling is completed, pull the rope upwards, pull the collecting seat out of the water surface, and cover the cover tightly, so that the cover is tightly connected to the upper surface of the end cover, thereby The liquid inlet hole is tightly covered, the collected water sample is directly stored in the collection hole, and the entire collection seat can be brought back.

Compared with the prior art, the present invention has the beneficial effects that the environmental monitoring water sample collection operation is convenient and the work efficiency is high.

Description of drawings

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

Fig. 2 is the partial enlarged schematic diagram of the present invention;

In the picture: 1. Collection base, 2. Pull rope, 3. Counterweight, 4. Collection hole, 5. Closing float, 6. Positioning magnet, 7. Fixed magnet, 8. Positioning bump, 9. End cap, 10, liquid inlet hole, 11, lower magnet block, 12, upper magnet block, 13, cover plate, 14, airbag cushion, 15, ejection torsion spring, 16, guide rod, 17, avoidance hole, 18, poke Needle, 19, Upper sliding sleeve, 20, Lower sleeve, 21, Pull wire, 22, Lead wire, 23, Floating body, 24, Gasket, 25, Screw, 26, Seal groove, 27, Installation groove, 28, Filter screen, 29. Support protrusion, 30. Lift handle.

Detailed ways

Below by specific embodiment, and in conjunction with accompanying drawing, the technical scheme of the present invention is further described in detail:

Example: an environmental monitoring water sample collection and storage device (see Figure 1 and Figure 2), comprising a column-shaped collection base 1, the lower end of the collection base is connected to a pull rope 2, and the lower end of the collection base is detachably connected to a counterweight 3, with The weight is in the shape of a cone with a large upper and a lower small, and the pull rope is connected to the lower end of the counterweight. A plurality of collection holes 4 are evenly arranged on the collection base, the upper ends of the collection holes are open and the lower ends are closed. A slidable closed floating block 5 is placed in the collection hole, a positioning magnetic block 6 is arranged at the lower end of the closed floating block, and a fixed magnetic block 7 is installed on the bottom surface of the collecting hole, and the positioning magnetic block and the fixed magnetic block attract each other. A plurality of positioning bumps 8 are evenly distributed on the outer edge of the closed floating block, and the positioning bumps are arranged close to the inner wall of the collecting hole.

The upper end of the collection hole is connected to the end cover 9, and the end cover is provided with a liquid inlet hole 10. Several lower magnetic blocks 11 are installed in the closed float near the upper surface, and several upper magnetic blocks 12 are installed in the end cover near the liquid inlet hole. After collecting the full water sample, the closed float floats up, and the lower magnetic block and the upper magnetic block attract each other so that the closed float tightly covers the liquid inlet; the upper surface of the closed float is a plane structure, and the end face of the end cover facing the collection hole is a plane structure. The upper surface of the end cover is connected to the cover plate 13, the airbag cushion 14 is tightly connected between the cover plate and the end cover, the airbag cushion is tightly closed to the liquid inlet, and there is a liquid passage gap between the cover plate and the end cover; the end cover is installed with ejection The torsion spring 15 and the guide rod 16 are provided with avoidance holes 17 corresponding to the cover plate and the guide rod. One end of the ejection torsion spring is tightly connected with the end cover, and the other end is provided with a poking pin 18 facing the airbag cushion, and the guide rod is sleeved There are an upper sliding sleeve 19 and a lowering sleeve 20, the pulling wire 21 is connected between the upper sliding sleeve and the poking needle, the lowering sleeve is connected to the lead wire 22, the lead wire passes through the avoidance hole, the upper end of the lead wire is connected to the floating body 23, and the length of the lead wire corresponds to the sampling depth of the water sample. Correspondingly, after the lead wire is completely straightened, both the upper sliding sleeve and the lower sliding sleeve slide away from the guide rod, the poking needle is ejected towards the airbag cushion and punctured the airbag cushion, the liquid inlet hole is opened, and the water sample flows into the collection hole.

A layer of sealing gasket 24 is arranged on the lower surface of the cover plate, and the cover plate is connected with screws 25. The screws are screwed on the upper end of the end cover and can tightly cover the cover plate on the upper surface of the end cover. A ring-shaped sealing groove 26 is arranged on the upper surface of the end cover near the edge of the liquid inlet hole. The arc transition between the two sides of the sealing groove and the upper surface of the end cover, and the airbag cushion fills the sealing groove. An installation groove 27 is provided on the upper surface of the end cover near the edge of the airbag cushion, and the ejection torsion spring is installed in the installation groove. A filter screen plate 28 is installed on the upper end of the liquid inlet hole, a plurality of support protrusions 29 are evenly distributed on the inner wall of the liquid inlet hole near the upper end, and the filter screen plate is supported on the support protrusions. A pulling handle 30 is provided on the outer wall of the collecting seat.

A water sample collection method for an environmental monitoring water sample collection and storage device, comprising the following steps: Step 1: According to the water samples at different depths that need to be sampled, intercept a number of leads corresponding to the depths one-to-one, and connect the lower ends of the leads to the Put the sliding sleeve on, and connect the floating body to the upper end of the lead; the second step, put the collection base into the sampling water area, hold the pull rope, and the collection base sinks. In the initial stage, as the collection base sinks, the lead is pulled down, and the floating body floats on the water surface; The third step: After the collecting seat sinks to the first sampling position, the lead wire corresponding to the depth is straightened under the buoyancy of the floating body, and the collecting seat continues to sink, so that the sliding sleeve connected with the lower end of the lead wire slides away from the guide wire. The upper sliding sleeve is pushed away from the guide rod by the sliding sleeve. Under the action of the ejection torsion spring, the poking needle is ejected to the airbag cushion and punctured the airbag cushion. After the airbag cushion is deflated, the liquid inlet hole opens, and the water sample at this depth flows into the collection hole. , after the collection hole is full of water samples, the closed floating block floats up, and the lower magnetic block and the upper magnetic block attract each other so that the closed floating block tightly covers the liquid inlet hole; the fourth step, after the collection seat continues to sink to several sampling positions below, The third step is repeated for each position to complete the sampling; the fifth step, after the sampling is completed, pull the rope upwards, pull the collecting seat out of the water surface, and cover the cover tightly, so that the cover is tightly connected to the upper surface of the end cover, thereby The liquid inlet hole is tightly covered, the collected water sample is directly stored in the collection hole, and the entire collection seat can be brought back. In the process of pulling the rope upward, the collection seat is inverted to prevent the water sample from other positions from entering the collection hole during the upward process, which affects the accuracy of water sample collection.

The above-mentioned embodiments are only preferred solutions of the present invention, and do not limit the present invention in any form. There are other variations and modifications under the premise of not exceeding the technical solutions recorded in the claims.

Claims (10)

1. The environmental monitoring water sample collecting and storing device is characterized by comprising a columnar collecting seat, wherein the lower end of the collecting seat is connected with a pull rope, a plurality of collecting holes are uniformly distributed in the collecting seat, a slidable closed floating block is placed in each collecting hole, the upper end of each collecting hole is connected with an end cover, a liquid inlet hole is formed in each end cover, a plurality of lower magnetic blocks are arranged in the closed floating blocks and close to the upper surface of each closed floating block, a plurality of upper magnetic blocks are arranged in the end covers and close to the liquid inlet holes, the closed floating blocks float upwards after the collecting holes are full of water samples, and the lower magnetic blocks and the upper magnetic blocks attract each other to enable the closed floating blocks to tightly cover the liquid inlet holes; the upper surface of the end cover is connected with a cover plate, an air bag cushion is tightly connected between the cover plate and the end cover, the air bag cushion tightly covers the liquid inlet hole, and a liquid passing gap is arranged between the cover plate and the end cover; the installation launches torsional spring and guide arm on the end cover, correspond with the guide arm on the apron and be equipped with and dodge the hole, launch torsional spring one end and end cover fastening connection, be equipped with the needle of stabbing towards the setting of gasbag pad on the other end, the cover is equipped with sliding sleeve and lower sliding sleeve on the guide arm, go up the sliding sleeve and stab and be connected the acting as go-between the needle, connect the lead wire on the lower sliding sleeve, the lead wire passes and dodges the hole, lead wire upper end connection body, the length of lead wire is corresponding with the sample depth of water sample, the back is straightened completely to the lead wire, go up sliding sleeve and lower sliding sleeve and all slip from the guide arm, stab the needle and launch and puncture gasbag pad to the gasbag pad, the feed liquor hole is opened, the water sample flows into and gathers downtheholely.

2. The environmental monitoring water sampling and storing device of claim 1, wherein the lower end of the closed floating block is provided with a positioning magnet, the bottom surface of the collecting hole is provided with a fixed magnet, and the positioning magnet and the fixed magnet attract each other.

3. The environmental monitoring water sampling and storing device of claim 1, wherein a plurality of positioning protrusions are uniformly distributed on the outer edge of the closed floating block, and the positioning protrusions are arranged close to the inner wall of the collecting hole.

4. The environmental monitoring water sampling and storing device of claim 1, wherein the upper surface of the closed floating block is of a plane structure, and the end surface of the end cover facing the collecting hole is of a plane structure.

5. The environmental monitoring water sampling storage device of claim 1, wherein the lower end of the collecting base is detachably connected with a balancing weight, and the pull rope is connected with the lower end of the balancing weight.

6. The environmental monitoring water sampling and storing device of claim 1, wherein a layer of sealing gasket is arranged on the lower surface of the cover plate, a screw is connected to the cover plate, and the screw is screwed to the upper end of the end cover to enable the cover plate to tightly cover the upper surface of the end cover.

7. The environmental monitoring water sampling and storing device of any one of claims 1 to 6, wherein a ring of annular sealing groove is arranged on the upper surface of the end cover near the edge of the liquid inlet hole, the two sides of the sealing groove are in arc transition with the upper surface of the end cover, and the sealing groove is filled with the air bag cushion.

8. The environmental monitoring water sampling storage device of any one of claims 1 to 6, wherein a mounting groove is formed on the upper surface of the end cover near the edge of the air bag cushion, and the ejection torsion spring is mounted in the mounting groove.

9. The environmental monitoring water sampling and storing device of any one of claims 1 to 6, wherein the upper end of the liquid inlet hole is provided with a filter screen.

10. The water sampling method of the environmental monitoring water sampling storage device according to claim 1, which comprises the following steps: firstly, according to water samples at different depth positions to be sampled, cutting a plurality of leads corresponding to the depths one by one, connecting the lower ends of the leads to a lower sliding sleeve, and connecting the upper ends of the leads to a floating body; secondly, placing the collecting seat in a sampling water area, holding the pull rope by hand, sinking the collecting seat, and pulling down the lead wire along with the sinking of the collecting seat in the initial stage so that the floating body floats on the water surface; thirdly, after the collection seat is sunk to the first sampling position, the lead corresponding to the depth is straightened under the buoyancy action of the floating body, the collection seat is continuously sunk, so that the lower sliding sleeve connected with the lower end of the lead slides away from the guide rod, the upper sliding sleeve is pushed away from the guide rod by the lower sliding sleeve, the poking needle is ejected towards the air bag cushion and punctures the air bag cushion under the action of an ejection torsion spring, the liquid inlet hole is opened after the air bag cushion is deflated, the water sample at the depth position flows into the collection hole, the closed floating block floats upwards after the collection hole is full of the water sample, and the lower magnetic block and the upper magnetic block attract each other to enable the closed floating block to tightly cover the liquid inlet hole; fourthly, after the collecting seat continuously sinks to a plurality of sampling positions below, each position repeats the action of the third step to finish sampling; and fifthly, after sampling is completed, pulling the pull rope upwards to pull the collecting seat out of the water surface, tightly covering the cover plate, and tightly connecting the cover plate on the upper surface of the end cover, so that the liquid inlet hole is tightly covered, the collected water sample is directly stored in the collecting hole, and the whole collecting seat is taken back.

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