CN114720187A

CN114720187A - Water quality sampling device for environmental engineering detection

Info

Publication number: CN114720187A
Application number: CN202210300787.8A
Authority: CN
Inventors: 王红军
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-07-08

Abstract

The invention discloses a water quality sampling device for environmental engineering detection, which belongs to the technical field of environmental inspection and comprises a flying and conveying assembly, wherein the top of the flying and conveying assembly is fixedly connected with a first guide assembly, and a retraction assembly is embedded in the first guide assembly. According to the invention, through the designed flying and conveying assembly and the folding and unfolding assembly, under the action of centrifugal force, the centrifugal wings rotate through the adapter shaft, so that the centrifugal wings are all unfolded under the action of the centrifugal force, and the flying and conveying distance of the flying and conveying wheel disc is effectively prolonged by utilizing the floating effect of the unfolded centrifugal wings, so that the sampling range of the whole device can be expanded, a sampling device does not need to be conveyed to a position close to the center of a water area by using a ship, a water sample in a larger range can be obtained at the bank, the sampling of water at different depths is facilitated, the detection accuracy of river water is improved, the water quality sampling mode is simplified, and the water quality sampling efficiency is also improved.

Description

Water quality sampling device for environmental engineering detection

Technical Field

The invention relates to the technical field of environmental inspection, in particular to a water quality sampling device for environmental engineering detection.

Background

The method comprises the steps of collecting a water sample of the polluted water body, analyzing and determining to obtain basic data of water body pollution, wherein the water sample for analysis is representative and can reflect the chemical composition and characteristics of the water body, and the sampling method, position, time, frequency and the like are determined according to the characteristics of the water body and the analysis purpose.

The patent discloses an invention patent in the technical field of partial hydraulic inspection, wherein the patent with the application number of CN108801699B discloses river water quality detection sampling equipment for hydraulic engineering, and the patent solves the technical problems that river water in a channel is detected, whether the river water meets the requirements of fishes or not is judged, and the river water needs to be sampled before the river water is detected; at present generally the manual work is sampled river water with the cup, and the manual work is sampled river water with the cup and can only be drawed river upper surface's water, can not sample the water of the different degree of depth, so can lead to the testing result inaccurate, and this patent has solved above-mentioned problem under mutually supporting through the first sector gear of design, spring, hose and piston block isotructure.

In order to take the water sample of keeping away from the bank among the prior art, can select to drive the ship and remove to waiting to sample the site usually, then transfer sampling device to aquatic again, drive the ship and have certain danger, and comparatively troublesome, seriously influence the sampling efficiency of quality of water, and the stability of rivers can also be disturbed in the in-process of rowing boat, produce certain influence to the detection precision.

Based on the above, the invention designs a water quality sampling device for environmental engineering detection, so as to solve the problems.

Disclosure of Invention

The invention aims to provide a water quality sampling device for environmental engineering detection, which solves the problems of the prior art proposed in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a water quality sampling device for environmental engineering detection comprises a flying and conveying assembly, wherein the top of the flying and conveying assembly is fixedly connected with a first guide assembly, a retraction assembly is embedded in the first guide assembly, a second guide assembly is arranged on the retraction assembly, and a hand-cranking assembly is further arranged at a position, corresponding to the second guide assembly, on the retraction assembly;

fly to send the subassembly including flying to send the rim plate, fly to have seted up on the outer cambered surface that sends the rim plate and roll over and accept the groove, the inside of rolling over and accepting the groove inlays and is equipped with the centrifugal wing that a plurality of is the annular array setting, the tip fixedly connected with switching axle of centrifugal wing, the tip of switching axle rotates through the bearing and connects the switching inslot of offering on the inslot lateral wall of rolling over, the switching spring still inlays to be equipped with in the position department that corresponds the switching axle in the switching inslot, the one end fixed connection of switching spring is on the terminal surface of switching inslot side, the other end fixed connection of switching spring is on the surface of switching axle, the bottom that flies to send the subassembly is provided with and is used for cooperating the counter weight subassembly that the sampling box carried out the sample, receive and release the subassembly and be used for playing the control action to the counter weight subassembly.

As a further scheme of the invention, the counterweight assembly comprises an upper-layer telescopic sleeve, the bottom of the upper-layer telescopic sleeve is fixedly connected with a lower-layer sealing cover, the bottom of the lower-layer sealing cover is provided with a surge port, a piston pad is connected in the surge port in an embedded mode, and the top of the upper-layer telescopic sleeve corresponding to the position of the piston pad is further provided with a first threading hole.

As a further scheme of the invention, magnetic pads are embedded on the opposite surfaces of the upper layer telescopic sleeve and the flying wheel disc, and the opposite surfaces of the two magnetic pads are mutually attracted.

As a further scheme of the invention, the number of the sampling boxes is a plurality, the sampling boxes are arranged on the outer circumferential surface of the lower sealing cover in an annular array mode, the top of each sampling box is provided with a sampling port, a sealing box cover is connected in the sampling port in an embedded mode, the sealing box cover is hinged to the sampling boxes through spring hinges, and the selection of the elastic coefficient of the spring hinges is related to the sampling depth.

As a further scheme of the invention, the first guide assembly comprises a universal shaft sleeve, the universal shaft sleeve is arranged above the flying wheel disc at a position corresponding to the first threading hole, the spherical surface of the universal shaft sleeve is fixedly connected with the top of the flying wheel disc through an angle-shaped support, a built-in joint shaft is sleeved inside the universal shaft sleeve, a second threading hole is formed in the spherical surface of the built-in joint shaft at a position corresponding to the first threading hole, and a third threading hole is further formed in the top of the flying wheel disc at a position corresponding to the second threading hole.

As a further scheme of the invention, the winding and unwinding assembly comprises a traction rope, one end of the traction rope sequentially passes through the second threading hole, the third threading hole and the first threading hole and then is fixedly connected to the top of the piston pad, the other end of the traction rope is wound and connected to the surface of the winding type bobbin, two end parts of the winding type bobbin are respectively and rotatably connected to opposite surfaces of the two lateral rib plate seats, and an anti-skidding handle is further fixedly connected to one surface of one of the lateral rib plate seats, which is far away from the winding type bobbin.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, through the designed flying and feeding assembly and the retracting assembly, when a sampling box needs to be put into water for sampling, a worker needs to apply pressure on the hand rocker until the anti-skid disc is completely separated from the anti-skid patterns, at the moment, the limiting conditions of the anti-skid disc and the anti-skid patterns on the free rotation of the winding type bobbin are removed, the flying and feeding wheel disc and the counterweight assembly on the flying and feeding wheel disc are thrown to the water area to be detected forcibly, the flying and feeding wheel disc rotates after being thrown out, the centrifugal wings rotate through the transfer shaft under the action of centrifugal force, so that the centrifugal wings are all unfolded under the action of the centrifugal force, the flying and feeding distance of the flying and feeding wheel disc is effectively prolonged by utilizing the floating effect of the unfolded centrifugal wings, the sampling range of the whole device can be expanded, a ship does not need to feed the sampling device to a position close to the center of the water area, and a water sample in a larger range can be obtained at the bank side, the sampling device is convenient for sampling water at different depths, improves the detection accuracy of river water, simplifies the water quality sampling mode, and simultaneously improves the efficiency of water quality sampling.

2. According to the invention, through the designed counterweight assembly, after the flying wheel disc is thrown out and floats on the water surface through the upper telescopic sleeve, a worker can pull the sampling box to move towards the direction of the bank by poking the hand lever, so that the positioning sampling of the sampling site is realized, the movable type sampling site quickly pulls the pulling rope with force, the piston pad can be separated from the inrush current port under the action of pulling force, river water can enter the inner part of the lower sealing cover through the inrush current port, the upper telescopic sleeve can be unfolded along with the increase of the water inrush amount of the lower sealing cover, after the upper telescopic sleeve is completely unfolded, the magnetic attraction between the two magnetic pads is smaller than the water gravity, the upper telescopic sleeve can be separated from the flying wheel disc and sink into the water and slowly descend, and the water storage amount in the upper telescopic sleeve and the lower sealing cover is more accumulated, so that the stability of the sampling box in the descending process can be improved, the probability of deviation from the site to be sampled is reduced.

3. According to the invention, through the designed retracting assembly and the second guide assembly, when the sampling box is driven by the counterweight assembly to sink, a worker needs to slowly rotate the hand-operated rod, the hand-operated rod can drive the winding type wire barrel to slowly rotate and release the traction rope in the rotating process, and can transfer the torsion force to the reciprocating lead screw through the winding type wire barrel by utilizing the linkage effect among the active linkage wheel, the linkage belt and the driven linkage wheel, the reciprocating lead screw can enable the lead screw sleeve to reciprocate in the rotating process, and further can drive the sliding connecting sleeve to slide on the surface of the sliding connecting shaft, and as scale lines are carved on the surface of the sliding connecting shaft, the worker can know the falling depth of the sampling box according to the scale lines, when the sampling box falls to a certain depth, the worker removes the pressure applied to the hand-operated rod, under hydraulic effect, the lid on the sampling box that corresponds will open by oneself, treats a period of back, operates the hand pole again until removing next sampling depth, takes a sample to the water of the different degree of depth, and can choose for use the sampling box of different opening conditions as required, has increased sampling efficiency, has also improved the accurate nature of water monitoring.

4. According to the invention, through the designed first guide assembly, the built-in joint shaft rotates in the universal shaft sleeve under the condition of stress, and the guide effect on the traction rope is achieved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a second guide assembly according to the present invention;

FIG. 3 is a schematic structural view of a first guide assembly according to the present invention;

FIG. 4 is a schematic cross-sectional structural view of the flying feed assembly of the present invention;

FIG. 5 is a schematic structural view of a flying feed assembly of the present invention;

FIG. 6 is a schematic view of the hand cranking assembly of the present invention;

fig. 7 is a schematic view of a disassembled structure of the weight assembly of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a flying assembly; 101. a flying wheel disc; 102. folding the containing groove; 103. a centrifugal wing; 104. a transfer shaft; 105. a transfer groove; 106. an adapting spring; 2. a counterweight assembly; 201. an upper layer telescopic sleeve; 202. a lower layer seal cover; 203. a piston pad; 204. a first threading hole; 3. a first guide assembly; 301. a universal shaft sleeve; 302. an angle bracket; 303. a joint shaft is arranged inside; 304. a second threading hole; 4. a sampling box; 5. a third threading hole; 6. a retraction assembly; 601. a traction rope; 602. a wind-up bobbin; 603. a lateral rib plate seat; 604. an anti-slip handle; 7. a second guide assembly; 701. an active linkage wheel; 702. a linkage belt; 703. a driven type linkage wheel; 704. a reciprocating screw; 705. a screw sleeve; 706. a bridge type connecting seat; 707. a sliding connecting sleeve; 708. a sliding connecting shaft; 709. a guide ring; 8. a hand cranking assembly; 801. a linkage groove; 802. a hand lever; 803. an anti-slip disc; 804. supporting the spring.

Detailed Description

Referring to fig. 1-7, the present invention provides a technical solution: a water quality sampling device for environmental engineering detection comprises a flying and conveying assembly 1, wherein the top of the flying and conveying assembly 1 is fixedly connected with a first guide assembly 3, a retraction assembly 6 is embedded in the first guide assembly 3, a second guide assembly 7 is arranged on the retraction assembly 6, and a hand-cranking assembly 8 is further arranged at a position, corresponding to the second guide assembly 7, on the retraction assembly 6;

fly to send subassembly 1 including flying to send rim plate 101, it accomodates groove 102 to have seted up on the outer arc surface of sending rim plate 101 to fly, it has a plurality of centrifugal wing 103 that is the setting of annular array to accomodate the inside of groove 102 to inlay, the tip fixedly connected with switching axle 104 of centrifugal wing 103, the tip of switching axle 104 rotates through the bearing and connects in the switching groove 105 of seting up on accomodating the inslot 102 inside wall, switching spring 106 has still been inlayed to the position department that corresponds switching axle 104 in switching groove 105, the one end fixed connection of switching spring 106 is on the terminal surface of switching groove 105 inboard, the other end fixed connection of switching spring 106 is on the surface of switching axle 104, the bottom that flies to send subassembly 1 is provided with and is used for cooperating the counter weight subassembly 2 that sample box 4 carried out the sample, receive and release subassembly 6 is used for playing control action to counter weight subassembly 2.

Specifically, as shown in fig. 7, the counterweight assembly 2 includes an upper telescopic sleeve 201, a lower sealing cover 202 is fixedly connected to the bottom of the upper telescopic sleeve 201, a surge port is formed at the bottom of the lower sealing cover 202, a piston pad 203 is connected in the surge port in an embedded manner, a first threading hole 204 is also arranged at the position of the top of the upper layer telescopic sleeve 201 corresponding to the piston pad 203, magnetic pads are embedded on the opposite surfaces of the upper layer telescopic sleeve 201 and the flying wheel disc 101, the opposite surfaces of the two magnetic pads are mutually attracted, the number of the sampling boxes 4 is a plurality, the sampling boxes 4 are arranged on the outer circumferential surface of the lower sealing cover 202 in an annular array mode, a sampling opening is formed in the top of each sampling box 4, a sealing box cover is connected in an embedded mode in each sampling opening and hinged to the sampling boxes 4 through spring hinges, and the elastic coefficient of each spring hinge is selected to be related to the sampling depth.

The embodiment specifically comprises the following steps: after the flying and conveying wheel disc 101 is thrown out and floats on the water surface through the upper layer telescopic sleeve 201, a worker can pull the sampling box 4 to move towards the shore by stirring the hand lever 802, positioning sampling of the sampling site is realized, the movable type rope 601 is pulled by force quickly after the sampling site is to be sampled, the piston pad 203 is separated from the inrush port under the action of pulling force, river water enters the inner part of the lower layer sealing cover 202 through the inrush port, the upper layer telescopic sleeve 201 is unfolded along with the increase of the water inrush amount of the lower layer sealing cover 202, after the upper layer telescopic sleeve 201 is completely unfolded, the magnetic attraction between the two magnetic pads is smaller than the water gravity, the upper layer telescopic sleeve 201 is separated from the flying and conveying wheel disc 101 and sinks into the water and slowly descends, and the water storage amount in the upper layer telescopic sleeve 201 and the lower layer sealing cover 202 is accumulated more, so that the stability of the sampling box 4 in the descending process can be improved, the probability of deviation from the site to be sampled is reduced.

Specifically, as shown in fig. 3-7, the first guiding assembly 3 includes a universal shaft sleeve 301, the universal shaft sleeve 301 is disposed above the flying wheel disc 101 at a position corresponding to the first threading hole 204, the spherical surface of the universal shaft sleeve 301 is fixedly connected to the top of the flying wheel disc 101 through an angle bracket 302, a built-in joint shaft 303 is sleeved inside the universal shaft sleeve 301, a second threading hole 304 is disposed at a position corresponding to the first threading hole 204 on the spherical surface of the built-in joint shaft 303, a third threading hole 5 is further disposed at a position corresponding to the second threading hole 304 on the top of the flying wheel disc 101, the retraction assembly 6 includes a traction rope 601, one end of the traction rope 601 sequentially passes through the second threading hole 304, the third threading hole 5 and the first threading hole 204 and then is fixedly connected to the top of the piston pad 203, the other end of the traction rope 601 is wound on the surface of the winding type bobbin 602, and two ends of the winding type bobbin 602 are respectively rotatably connected to opposite surfaces of the two side rib plate seats 603, and one side of one of the side rib plate seats 603, which faces away from the winding-type bobbin 602, is also fixedly connected with an anti-skid handle 604.

The embodiment specifically comprises the following steps: when the sampling box 4 needs to be put into water for sampling, a worker needs to apply pressure on the hand rocker 802 until the anti-skid disc 803 is completely separated from the anti-skid pattern, at the moment, the limiting condition of the anti-skid disc 803 and the anti-skid pattern on the free rotation of the rolling bobbin 602 is removed, the flying and conveying wheel disc 101 and the counterweight assembly 2 on the flying and conveying wheel disc 101 are thrown away to the water area to be detected forcibly, the flying and conveying wheel disc 101 rotates after being thrown away, the centrifugal wings 103 rotate through the transfer shaft 104 under the action of centrifugal force, so that the centrifugal wings 103 are all unfolded under the action of the centrifugal force, the flying and conveying distance of the flying and conveying wheel disc 101 is effectively prolonged by utilizing the floating effect of the unfolded centrifugal wings 103, the sampling range of the whole device can be expanded, the sampling device does not need to be conveyed to a position close to the center of the water area by using a ship, and water samples in a larger range can be obtained at the bank side, the sampling device is convenient for sampling water at different depths, improves the detection accuracy of river water, simplifies the water quality sampling mode, and simultaneously improves the efficiency of water quality sampling.

Specifically, as shown in fig. 6 and 7, the second guiding assembly 7 includes an active linkage wheel 701, the active linkage wheel 701 is located inside the lateral rib plate seat 603 and is fixedly connected to an end of the winding bobbin 602, a surface of the active linkage wheel 701 is in transmission connection with a driven linkage wheel 703 through a linkage belt 702, the driven linkage wheel 703 is fixedly connected to a surface of a reciprocating lead screw 704, two ends of the reciprocating lead screw 704 are respectively rotatably connected to opposite surfaces of the lateral rib plate seats 603, a surface of the reciprocating lead screw 704 is in threaded connection with a lead screw sleeve 705, a surface of the lead screw sleeve 705 is fixedly connected to a surface close to the sliding connecting sleeve 707 through a bridge type connecting seat 706, a sliding connecting shaft 708 is sleeved inside the sliding connecting sleeve 707, an end of the sliding connecting shaft 708 is fixedly connected to an end surface of the lateral rib plate seat 603, and a guiding ring 709 is fixedly connected to a position of the top of the sliding connecting sleeve 707 corresponding to the winding bobbin 602.

The embodiment specifically comprises the following steps: in the process that the sampling box 4 sinks under the driving of the counterweight component 2, a worker needs to slowly rotate the hand lever 802, the hand lever 802 can drive the winding type bobbin 602 to slowly rotate and release the traction rope 601 in the rotating process, on the other hand, the winding type bobbin 602 transfers the torsion force to the reciprocating lead screw 704 by utilizing the linkage effect among the active linkage wheel 701, the linkage belt 702 and the driven linkage wheel 703, the reciprocating lead screw 704 can enable the lead screw sleeve 705 to reciprocate in the rotating process, and then the sliding connecting sleeve 707 can be driven to slide on the surface of the sliding connecting shaft 708, and the worker can know the falling depth of the sampling box 4 according to the scale lines because the scale lines are carved on the surface of the sliding connecting shaft 708.

Specifically, as shown in fig. 6 and 7, the hand cranking assembly 8 includes a linkage groove 801, the linkage groove 801 is opened on the end surface of the winding bobbin 602, the end surface inside the linkage groove 801 is further fixedly connected with one end of a hand cranking bar 802 through a support spring 804, the hand cranking bar 802 is slidably connected on the side end surface of the other side position rib plate seat 603, an anti-slip pattern is arranged on the inner side wall of the side position rib plate seat 603, and an anti-slip disc 803 is further fixedly connected at a position corresponding to the anti-slip pattern on the surface of the hand cranking bar 802.

The embodiment specifically comprises the following steps: when sampling box 4 need be put into the aquatic and take a sample, the staff need exert pressure to hand rocker 802 earlier until anti-skidding dish 803 breaks away from the anti-skidding line completely, just so removed anti-skidding dish 803 and anti-skidding line to rolling line section of thick bamboo 602 free rotation's restrictive condition this moment, when sampling box 4 descends to a certain degree of depth, the staff removes the pressure of acting on hand rocker 802, under hydraulic effect, the lid on the sampling box 4 that corresponds will open by oneself, treat a period of time after, operate hand rocker 802 again until removing next sampling depth, do benefit to liberation staff's hand.

The working principle is as follows: when the sampling box 4 needs to be put into water for sampling, a worker needs to apply pressure on the hand rocker 802 until the anti-skid disc 803 is completely separated from the anti-skid pattern, at the moment, the limiting condition of the anti-skid disc 803 and the anti-skid pattern on the free rotation of the rolling bobbin 602 is removed, the flying and conveying wheel disc 101 and the counterweight assembly 2 on the flying and conveying wheel disc 101 are thrown away to the water area to be detected forcibly, the flying and conveying wheel disc 101 rotates after being thrown away, the centrifugal wings 103 rotate through the transfer shaft 104 under the action of centrifugal force, so that the centrifugal wings 103 are all unfolded under the action of the centrifugal force, the flying and conveying distance of the flying and conveying wheel disc 101 is effectively prolonged by utilizing the floating effect of the unfolded centrifugal wings 103, the sampling range of the whole device can be expanded, the sampling device does not need to be conveyed to a position close to the center of the water area by using a ship, and water samples in a larger range can be obtained at the bank side, the sampling of water at different depths is facilitated, the detection accuracy of river water is improved, the water quality sampling mode is simplified, and the water quality sampling efficiency is improved;

after the flying and conveying wheel disc 101 is thrown out and floats on the water surface through the upper layer telescopic sleeve 201, a worker can pull the sampling box 4 to move towards the bank side by pulling the hand lever 802, so that the positioning sampling of the sampling site is realized, the movable type traction rope 601 is quickly and forcefully pulled after the sampling site is to be sampled, the piston pad 203 is separated from the inrush port under the action of the pulling force, river water enters the inner part of the lower layer sealing cover 202 through the inrush port, the upper layer telescopic sleeve 201 is unfolded along with the increase of the water inrush quantity of the lower layer sealing cover 202, after the upper layer telescopic sleeve 201 is completely unfolded, the magnetic attraction between the two magnetic pads is smaller than the water gravity, the upper layer telescopic sleeve 201 is separated from the flying and conveying wheel disc 101 and sinks into the water and slowly descends, and the water storage quantity in the upper layer telescopic sleeve 201 and the lower layer sealing cover 202 is more accumulated, so that the stability of the sampling box 4 in the descending process can be improved, reducing the probability of deviation from the site to be sampled;

when the sampling box 4 sinks under the driving of the counterweight component 2, a worker needs to slowly rotate the hand lever 802, the hand lever 802 drives the winding bobbin 602 to slowly rotate and release the traction rope 601 in the rotating process, on the other hand, the winding bobbin 602 transfers the torque force to the reciprocating lead screw 704 by using the linkage effect among the active linkage wheel 701, the linkage belt 702 and the driven linkage wheel 703, the reciprocating lead screw 704 can make the lead screw sleeve 705 reciprocate in the rotating process, and further the sliding connection sleeve 707 can be driven to slide on the surface of the sliding connection shaft 708, since the surface of the sliding connection shaft 708 is carved with scale lines, the worker can know the falling depth of the sampling box 4 according to the scale lines, when the sampling box 4 falls to a certain depth, the worker removes the pressure applied to the hand lever 802, under the action of the water pressure, the lid on the sampling box 4 that corresponds will open by oneself, treat a period of back, operates hand pole 802 again until removing next sampling depth, takes a sample to the water of the different degree of depth, and can choose for use the sampling box 4 of different opening conditions as required, has increased sampling efficiency, has also improved the accurate nature of water monitoring.

Claims

1. The utility model provides a quality of water sampling device for environmental engineering detects, send subassembly (1) including flying, fly the first direction subassembly (3) of top fixedly connected with who sends subassembly (1), the inside of first direction subassembly (3) is inlayed and is equipped with and receive and release subassembly (6), it is provided with second direction subassembly (7) on receiving and releasing subassembly (6) to receive and release the position department that corresponds second direction subassembly (7) on subassembly (6) and still be provided with hand subassembly (8), its characterized in that:

the flying and conveying assembly (1) comprises a flying and conveying wheel disc (101), a folding groove (102) is formed in the outer arc surface of the flying and conveying wheel disc (101), a plurality of centrifugal wings (103) arranged in an annular array are embedded in the folding groove (102), a transfer shaft (104) is fixedly connected to the end part of each centrifugal wing (103), the end part of each transfer shaft (104) is rotatably connected into a transfer groove (105) formed in the inner side wall of the folding groove (102) through a bearing, a transfer spring (106) is further embedded in the transfer groove (105) at a position corresponding to the transfer shaft (104), one end of the transfer spring (106) is fixedly connected onto the inner side end surface of the transfer groove (105), the other end of the transfer spring (106) is fixedly connected onto the surface of the transfer shaft (104), a balance weight assembly (2) used for matching with a sampling box (4) to sample is arranged at the bottom of the flying and conveying assembly (1), the retraction assembly (6) is used for controlling the counterweight assembly (2).

2. The water quality sampling device for environmental engineering detection according to claim 1, wherein: the counterweight assembly (2) comprises an upper-layer telescopic sleeve (201), a lower-layer sealing cover (202) is fixedly connected to the bottom of the upper-layer telescopic sleeve (201), a surge port is formed in the bottom of the lower-layer sealing cover (202), a piston pad (203) is connected in the surge port in an embedded mode, and a first threading hole (204) is formed in the position, corresponding to the piston pad (203), of the top of the upper-layer telescopic sleeve (201).

3. The water quality sampling device for environmental engineering detection according to claim 2, characterized in that: the opposite surfaces of the upper layer telescopic sleeve (201) and the flying wheel disc (101) are respectively embedded with a magnetic pad, and the opposite surfaces of the two magnetic pads are mutually attracted.

4. The water quality sampling device for environmental engineering detection according to claim 3, wherein: the quantity of sampling box (4) is a plurality of, and a plurality of sampling box (4) are the outer periphery that the annular array set up in lower floor's sealed cowling (202), the sample connection has been seted up at the top of sampling box (4), the embedded sealed lid that is connected with in the sample connection, sealed lid passes through the spring hinge and articulates with sampling box (4), the selection and the sample depth of spring hinge elastic coefficient are correlated with.

5. The water quality sampling device for environmental engineering detection according to claim 1, wherein: first direction subassembly (3) include universal sleeve (301), universal sleeve (301) set up in the position department that flies to send rim plate (101) top to correspond first through wires hole (204), through angle type support (302) and the top fixed connection who flies to send rim plate (101) on the sphere of universal sleeve (301), the inside of universal sleeve (301) has cup jointed built-in joint axle (303), second through wires hole (304) have been seted up to the position department that corresponds first through wires hole (204) on the sphere of built-in joint axle (303) to third through wires hole (5) have still been seted up to the position department that flies to send rim plate (101) top to correspond second through wires hole (304).

6. The water quality sampling device for environmental engineering detection as recited in claim 1, wherein: receive and release subassembly (6) including traction rope (601), fixed connection is at the top of piston pad (203) behind second through wires hole (304), third through wires hole (5) and first through wires hole (204) in proper order passed to the one end of traction rope (601), the surface at rolling line section of thick bamboo (602) is connected in the winding of the other end of traction rope (601), two tip of rolling line section of thick bamboo (602) rotate respectively to be connected on the opposite face of two side position rib plate seats (603), and one of them side position rib plate seat (603) deviate from in the one side of rolling line section of thick bamboo (602) still fixedly connected with antiskid handle (604).