CN211784532U - A sewage sampling device for ecological remediation - Google Patents

Abstract

The utility model relates to a sewage sampling device for ecological restoration, which relates to a liquid sampling device and aims to solve the problem that when the water sample in the water body is collected in the prior art, the water sample on the surface of the water body can easily enter a sampling cylinder, thereby reducing the accuracy of the inspection; the main technical scheme includes that the suction pipe comprises a suction pipe, a collecting pipe arranged on the side wall of the suction pipe and a collecting box arranged on the side wall of the collecting pipe, a negative pressure box is arranged outside the suction pipe, and one end of the collecting pipe, far away from the suction pipe, is connected with the negative pressure box; a negative pressure component is arranged in the negative pressure box, one end of the water pumping pipe close to the collecting pipe is arranged in a closed mode, and one end of the water pumping pipe far away from the collecting pipe is provided with a filtering piece and a closing piece respectively; when the water body is collected, the water pumping pipe extends into the water body, the negative pressure component forms negative pressure in the inner cavity of the water pumping pipe, and the water body is pressed into the collecting box; therefore, the water sample in the deep inside the water body is smoothly collected, the possibility that the water sample on the surface of the water body enters the collector is reduced, and the accuracy of the water body detection result is favorably improved.

Description

A sewage sampling device for ecological remediation

Technical Field

The utility model relates to a liquid sampling device especially relates to a sewage sampling device for ecological remediation.

Background

Ecological restoration means stopping artificial interference on an ecological system to relieve load pressure, and evolving in an orderly direction depending on self-regulation capacity and self-organization capacity of the ecological system, or gradually restoring a damaged ecological system or developing the ecological system in a virtuous cycle direction by utilizing the self-restoration capacity of the ecological system and assisting artificial measures, wherein the treatment of domestic sewage is an important ring for urban ecological restoration and is related to the future development state of cities and towns.

The chinese patent that the bulletin was CN206450459U discloses a sewage sampler, relate to the environmental protection equipment field, this sewage sampler's handle end is equipped with ripple antiskid design, can play the antiskid effect, bellows is scalable and crooked structure, satisfy different sampling distance's demand, the material of whole sampler adopts the plastics preparation of acid and alkali-resistance, preferred teflon, corrosion resistance is good, long service life, for further weight and the cost of manufacture that reduces the sampler, the handle adopts hollow structure, the material is very light, the operation of being convenient for.

The above prior art solutions have the following drawbacks: this sampler is in sampling process, rotatory cover, the handle is held to the manual work, put into the water of taking the collection with the sampling tube, get into the sampling tube with the water on water surface after, pulling and twist grip, thereby accomplish the water sample collection on water surface, but in this collection process, can only gather the water sample on water surface, when gathering the water sample of water depths, need stretch into the water with the sampling tube in, when gathering outside pulling sampling tube in the completion, the liquid on water surface gets into in the sampling tube very easily, thereby lead to the testing result distortion.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a be used for ecological remediation's sewage sampling device, its advantage lies in making things convenient for operating personnel to gather the inside water sample of water smoothly, reduces the possibility that water surface water sample got into the collecting box, is favorable to improving testing result's accuracy.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a sewage sampling device for ecological restoration comprises a water pumping pipe, a collecting pipe and a collecting box, wherein the collecting pipe is arranged on the side wall of the water pumping pipe and communicated with the water pumping pipe, the collecting box is arranged on the side wall of the collecting pipe, a negative pressure box is arranged outside the water pumping pipe, and one end, far away from the water pumping pipe, of the collecting pipe is connected with the negative pressure box;

the negative pressure box is internally provided with a negative pressure component used for generating negative pressure in the pumping pipe, the pumping pipe is close to one end of the collecting pipe in a closed mode, and one end, far away from the collecting pipe, of the pumping pipe is provided with a filtering piece and a closing piece used for opening and closing the pumping pipe respectively.

By adopting the technical scheme, when the water body is collected, the closing member seals the water pumping pipe, the water pumping pipe extends into the water body, the closing member is opened, and the negative pressure component forms negative pressure in the inner cavity of the water pumping pipe, so that a water sample is pressed into the water pumping pipe and then enters the collecting pipe, and then enters the collecting box to finish the collection of the water sample in the water body; therefore, the water sample in the deep inside of the water body is collected smoothly, the possibility that the water sample on the surface of the water body enters the collector is reduced, and the accuracy of the water body detection result is improved; when gathering the water sample, filter the debris in the retention water sample, reduce the possibility that debris in the water sample blockked up the drinking-water pipe.

The present invention may be further configured in a preferred embodiment as: a connecting plate is arranged at one end, far away from the negative pressure box, of the collecting pipe, a fixing groove is formed in the side face of the connecting plate, and a fixing block inserted into the fixing groove is arranged on the outer side wall of the pumping pipe;

a positioning hole is formed in the top wall of the connecting plate and is communicated with the fixing groove, a limiting hole is formed in the top wall of the fixing block in a penetrating mode, a positioning block is inserted into the positioning hole, and one side, inserted into the positioning hole, of the positioning block is inserted into the limiting hole;

and a water delivery pipe is arranged on the side wall of the water pumping pipe and is inserted into the collecting pipe.

Through adopting above-mentioned technical scheme, before gathering the water sample, take out the locating piece, in the fixed block inserted the fixed slot, the locating piece inserted the locating hole in proper order and spacing downthehole to on with drinking-water pipe fixing base collecting pipe, the raceway inserts in the collecting pipe, thereby make things convenient for the sewage in the drinking-water pipe to get into the collecting pipe smoothly, make things convenient for operating personnel to change the drinking-water pipe of different length with this, be favorable to extracting the water sample of the different degree of depth in the water.

The present invention may be further configured in a preferred embodiment as: the negative pressure assembly comprises a negative pressure cylinder arranged in a negative pressure box, a negative pressure plate arranged in the negative pressure cylinder and a lead screw which is rotatably connected to one side of the negative pressure plate, which is far away from the collecting box, the lead screw is arranged along the thickness direction of the negative pressure plate, one end of the lead screw, which is far away from the negative pressure plate, extends out of the negative pressure cylinder, the side wall of the negative pressure plate is abutted against the inner side wall of the negative pressure cylinder, one side of the negative pressure plate, which is far away from the lead screw, and the inner side wall of the negative pressure cylinder form a negative pressure cavity;

the negative pressure box is internally provided with a negative pressure motor, a motor shaft of the negative pressure motor is provided with a rotating shaft, the axis of the rotating shaft is perpendicular to the axis of the screw rod, one end of the rotating shaft, which is far away from the negative pressure motor, is provided with a driving bevel gear, the outer side wall of the negative pressure cylinder is rotatably connected with a driven bevel gear meshed with the driving bevel gear, one end of the screw rod, which extends out of the negative pressure cylinder, is in threaded connection with the driven bevel gear, and the side wall of the negative pressure box is provided with a through.

Through adopting above-mentioned technical scheme, when gathering the water sample, the drinking-water pipe stretches into in the water, starts negative pressure motor, drives the axis of rotation and rotates, and the axis of rotation drives the rotation of drive bevel gear, and drive bevel gear drives driven bevel gear and rotates, and driven bevel gear drives the lead screw and rotates to drive the lead screw and remove, the lead screw drives the negative pressure board and removes, and the negative pressure board is with the air suction negative pressure cavity in the drinking-water pipe in, thereby reduce the pressure in the drinking-water pipe, be favorable to the inside water liquid of water to get into smoothly in.

The present invention may be further configured in a preferred embodiment as: and a waterproof breathable film is arranged on the inner side wall of the collecting pipe and is close to the negative pressure tank.

Through adopting above-mentioned technical scheme, when gathering the water sample, waterproof ventilated membrane restriction water sample is in the flowing range of collecting tube, reduces the possibility that the water sample gets into the negative pressure cavity to reduce the possibility that the water sample gets into in the negative pressure tank, be favorable to reducing the possibility that the water sample soaks the negative pressure motor.

The present invention may be further configured in a preferred embodiment as: the closing member comprises a closing plug which is arranged at one end, far away from the collecting pipe, of the pumping pipe, a connecting rope is arranged on the end wall of the closing plug, and one end, far away from the closing plug, of the connecting rope is connected with the outer side wall of the negative pressure box.

Through adopting above-mentioned technical scheme, before gathering the water sample, the closing plug is filled in the pumping pipe to closed pumping pipe, when the pumping pipe stretched into the water, reduced the possibility that the sewage on water surface got into the pumping pipe, when stretching into appointed degree of depth, pulled the connection rope again, opened the closing plug, in order that the sewage of this water depths got into the pumping pipe smoothly.

The present invention may be further configured in a preferred embodiment as: the filter element is connected with the water pumping pipe in a detachable mode and is far away from the filter cover at one end of the collecting pipe, and a connecting hole for the connecting rope to penetrate is formed in the side face of the filter cover.

Through adopting above-mentioned technical scheme, before gathering the water sample, connect the rope and pass the connecting hole, install the filter mantle, the debris in the filter mantle retention water body reduce debris and get into the possibility of drinking-water pipe, are favorable to reducing the possibility that debris in the water body blockked up the drinking-water pipe.

The present invention may be further configured in a preferred embodiment as: a water outlet pipe is arranged on the side wall of the collecting pipe and is positioned on one side of the waterproof breathable film, which is far away from the negative pressure box;

the outlet pipe is kept away from collecting pipe one end is equipped with the dovetail block, be equipped with on the roof of collecting box and supply dovetail block male dovetail, the dovetail is followed the radial setting of outlet pipe, all be equipped with the spacing groove on the double-phase opposite groove lateral wall of dovetail, the spacing inslot interpolation is equipped with the stopper, the lateral wall of stopper with the dovetail block is inconsistent, be equipped with the water inlet that is connected with the outlet pipe on the diapire of dovetail.

Through adopting above-mentioned technical scheme, when collecting the water sample, take out the stopper, the dovetail inserts in the forked tail piece, the stopper inserts the spacing inslot, fixed collecting box, the outlet pipe aligns with the water inlet, thereby get into thereby the sewage in the collecting tube smoothly through outlet pipe and water inlet entering collecting box, after the completion is collected, promote the collecting box, separation forked tail piece and dovetail to take off the collecting box, install another collecting box, continue to collect, make things convenient for operating personnel to collect many samples with this.

The present invention may be further configured in a preferred embodiment as: the side wall of the collecting pipe is provided with a flushing pipe, the flushing pipe is positioned between the waterproof breathable film and the water outlet pipe, the side wall of the collecting pipe is provided with a sealing cover for sealing the flushing pipe, and one end, far away from the collecting pipe, of the water outlet pipe is provided with a closing plug for opening and closing the water outlet pipe.

Through adopting above-mentioned technical scheme, after the collection of accomplishing the water sample, open sealed lid, fill in closed match, seal the outlet pipe, wash by water in to the collecting pipe through the flushing pipe to wash away the remaining water sample in collecting pipe and the pumping pipe, be favorable to reducing the possibility that the water sample is detained in collecting pipe and pumping pipe.

To sum up, the utility model discloses a following at least one useful technological effect:

1. when a water sample is collected, the closing part seals the water pumping pipe, the water pumping pipe extends into the water body, the sealing of the closing part on the water pumping pipe is removed, and the negative pressure component generates negative pressure in the water pumping pipe, so that the water sample in the deep water body smoothly enters the water pumping pipe, enters the collecting box, the filtering part reduces the possibility that impurities in the water sample enter the water pumping pipe, reduces the possibility that the impurities block the water pumping pipe, smoothly collects the water sample in the water body, reduces the possibility that the water sample on the surface of the water body enters the collecting box, and is favorable for improving the accuracy of a detection;

2. the waterproof breathable film limits the moving range of the water sample in the collecting pipe and reduces the possibility of the water sample entering the negative pressure cavity, so that the possibility of the water sample entering the negative pressure box is reduced, and the possibility of the water sample soaking the motor is favorably reduced;

3. after the collection of completion water sample, open sealed lid, fill in the closure stopper, seal the outlet pipe, to washing intraductal bath to wash away collecting pipe and the intraductal remaining water sample of drawing water, be favorable to reducing the possibility that the water sample is detained in drawing water pipe and collecting pipe.

Drawings

Fig. 1 is a schematic structural diagram of the embodiment.

Fig. 2 is a sectional view taken along line a-a in fig. 1.

Fig. 3 is a schematic diagram of an exploded structure of a pumping pipe and a collecting pipe.

Fig. 4 is a partial structure view of the cross section along the direction a-a in fig. 1.

Fig. 5 is an enlarged view of a portion B in fig. 4.

In the figure, 1, a negative pressure tank; 11. a through hole; 12. a reel; 13. a fixing plate; 14. a rocker; 2. a negative pressure assembly; 21. a negative pressure cylinder; 22. a negative pressure plate; 23. a lead screw; 24. a negative pressure motor; 25. a rotating shaft; 26. a negative pressure cavity; 27. a through hole; 28. a waterproof breathable film; 29. a drive bevel gear; 291. a driven bevel gear; 3. a collection pipe; 31. a connecting plate; 32. fixing grooves; 33. positioning holes; 34. positioning blocks; 35. a water outlet pipe; 351. a dovetail block; 36. closing the plug; 361. pulling a rope; 37. flushing the pipe; 39. a sealing cover; 4. a water pumping pipe; 41. a fixed block; 42. a limiting hole; 43. a water delivery pipe; 5. a closure member; 51. a closing plug; 52. connecting ropes; 6. a filter member; 61. a filter housing; 62. connecting sleeves; 63. connecting holes; 7. a collection box; 71. a dovetail groove; 711. a limiting groove; 712. a limiting block; 72. a water inlet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the sewage sampling device for ecological restoration disclosed by the utility model, including a negative pressure box 1, a negative pressure component 2 is arranged in the negative pressure box 1, a collecting pipe 3 communicated with the negative pressure box 1 is arranged on the outer side wall of the negative pressure box 1, a water pumping pipe 4 is arranged at one end of the collecting pipe 3 far away from the negative pressure box 1, the axis of the water pumping pipe 4 is perpendicular to the axis of the collecting pipe 3, a closing member 5 for closing or opening the water pumping pipe 4 is arranged at one end of the water pumping pipe 4 far away from the collecting pipe 3, a filtering member 6 is arranged at one end of the water pumping pipe 4 far away from the collecting pipe 3, and; when a water sample in a water body is collected, the closing part 5 closes the water pumping pipe 4, the collecting box 7 is installed on the collecting pipe 3, the water pumping pipe 4 extends into the water body, the closing part 5 is opened, the negative pressure component 2 forms negative pressure in the water pumping pipe 4, the water sample in the water body smoothly enters the water pumping pipe 4, then enters the collecting pipe 3 and smoothly enters the collecting box 7, the water sample is collected, and the filtering piece 6 retains impurities in the water body, so that the possibility that the water pumping pipe 4 is blocked by the impurities is reduced; therefore, the water sample in the water body can be smoothly collected, the possibility that the water sample on the surface of the water body enters the collecting box 7 is reduced, and the accuracy of the detection result is improved.

Referring to fig. 2 and 3, one end of the collecting pipe 3, which is far away from the negative pressure tank 1, is provided with two connecting plates 31, the two connecting plates 31 are arranged oppositely, two opposite side surfaces of the two connecting plates 31 are provided with fixing grooves 32, the fixing grooves 32 are arranged along the axial direction of the collecting pipe 3, the outer side wall of the pumping pipe 4 is provided with fixing blocks 41 inserted into the fixing grooves 32, the top wall of the connecting plate 31 is provided with positioning holes 33, the positioning holes 33 are communicated with the fixing grooves 32, the top wall of the fixing blocks 41 is provided with limiting holes 42, the limiting holes 42 penetrate along the height direction of the fixing blocks 41, positioning blocks 34 are inserted into the positioning holes 33, one sides of the positioning blocks 34 inserted into the limiting holes 42 are provided with water conveying pipes 43 on the side walls of the, the other end is inserted into the collecting pipe 3, and the outer side wall of the pumping pipe 4 is abutted against the end wall of the collecting pipe 3; when gathering the water sample, take out locating piece 34 earlier, in fixed block 41 inserts fixed slot 32, raceway 43 inserts in the collecting pipe 3, locating piece 34 inserts in locating hole 33 one side insert spacing hole 42 in, thereby fix drinking-water pipe 4 on collecting pipe 3, with this dismantlement and the installation of convenient drinking-water pipe 4, the operator is according to the degree of depth requirement of gathering the water sample, select the drinking-water pipe 4 of different length to install on collecting pipe 3, conveniently gather the water sample of the internal different degree of depth of water.

Referring to fig. 2, the negative pressure assembly 2 includes a negative pressure cylinder 21, a negative pressure plate 22, a screw 23, a negative pressure motor 24 and a rotating shaft 25, the negative pressure cylinder 21 is disposed in the negative pressure box 1, the negative pressure plate 22 is disposed in the negative pressure cylinder 21, a side wall of the negative pressure plate 22 is abutted to a side wall of the negative pressure cylinder 21, a negative pressure cavity 26 is formed between one side of the negative pressure plate 22 close to the collecting pipe 3 and an inner side wall of the negative pressure cylinder 21, and the collecting pipe 3 is communicated with the negative pressure cavity 26; the screw rod 23 is rotatably connected to one side of the negative pressure plate 22 far away from the negative pressure cavity 26, the screw rod 23 is arranged along the thickness direction of the negative pressure plate 22, and a through hole 27 for the screw rod 23 to extend out is arranged on one side of the negative pressure cylinder 21 far away from the collecting pipe 3; a waterproof breathable film 28 is arranged in the collecting pipe 3, and the waterproof breathable film 28 is arranged close to the negative pressure box 1.

Referring to fig. 2, the negative pressure motor 24 is arranged on the inner bottom wall of the negative pressure tank 1, the negative pressure motor 24 is located on one side of the negative pressure cylinder 21 away from the collecting pipe 3, the axis of the motor shaft of the negative pressure motor 24 is perpendicular to the axis of the lead screw 23, one end of the rotating shaft 25 is connected with the motor shaft of the negative pressure motor 24, the other end is provided with a drive bevel gear 29, the outer side wall of the negative pressure cylinder 21 is provided with a driven bevel gear 291 meshed with the drive bevel gear 29, the axis of the driven bevel gear 291 is collinear with the axis of the lead screw 23, the lead screw 23 is in threaded connection with the driven bevel gear 291, the lead screw 23 passes through the driven bevel; when a water sample is collected, the water pumping pipe 4 extends into a water body to drive the negative pressure motor 24, the negative pressure motor 24 drives the rotating shaft 25 to rotate, the rotating shaft 25 drives the driving bevel gear 29 to rotate, the driving bevel gear 29 drives the driven bevel gear 291 to rotate, the driven bevel gear 291 drives the screw 23 to rotate, so that the screw 23 is moved, the screw 23 drives the negative pressure plate 22 to move, the negative pressure plate 22 moves to one side away from the collecting pipe 3, air in the water pumping pipe 4 is pumped into the negative pressure cylinder 21, negative pressure is formed in the water pumping pipe 4, a water sample conveniently and smoothly enters the water pumping pipe 4, and therefore the collection of the water sample is smoothly completed; the waterproof breathable film 28 limits the range of motion of the water sample in the collecting pipe 3, and reduces the possibility that the water sample enters the negative pressure cavity 26, so that the possibility that the water sample enters the negative pressure tank 1 is reduced, and the possibility that the water sample soaks the negative pressure motor 24 is favorably reduced.

Referring to fig. 4, two fixing plates 13 are oppositely arranged on the outer side wall of the negative pressure box 1, a winding shaft 12 is rotatably connected between the two fixing plates 13, one end of the winding shaft 12 penetrates through the fixing plates 13, a rocker 14 is arranged at one end of the winding shaft 12 penetrating through the fixing plates 13, the closing element 5 comprises a closing plug 51 and a connecting rope 52, the closing plug 51 is arranged at one end of the pumping pipe 4 far away from the collecting pipe 3, one end of the connecting rope 52 is arranged on the end wall of the closing plug 51, and the other end of the connecting rope is wound on the winding; the filtering element 6 comprises a filtering cover 61 arranged at one end of the pumping pipe 4 far away from the collecting pipe 3, one side of the filtering cover 61 close to the pumping pipe 4 is provided with a connecting sleeve 62, the connecting sleeve 62 is in threaded connection with the pumping pipe 4, and the side surface of the filtering cover 61 is provided with a connecting hole 63 for the connecting rope 52 to pass through; before collecting a water sample, plugging a closing plug 51 into a water inlet of a water pumping pipe 4, closing the water pumping pipe 4, screwing a connecting sleeve 62 on the outer side wall of the water pumping pipe 4, so that a filter cover 61 is installed, rotating a rocker 14 to drive a winding shaft 12 to rotate when pumping water, winding the connecting rope 52 around the winding shaft 12 to drive the connecting rope 52 to pull the closing plug 51, so that the closing plug 51 is separated from the water pumping pipe 4, the possibility that water on the surface of a water body enters the water pumping pipe 4 is reduced, and the accuracy of a water body detection result is improved; when a water sample enters the water pumping pipe 4, the filtering cover 61 effectively retains impurities in the water, and the possibility that the impurities block the water pumping pipe 4 is reduced.

Referring to fig. 4 and 5, a dovetail groove 71 is arranged on the top wall of the collecting box 7, the dovetail groove 71 is arranged along the axial direction of the collecting pipe 3, a water inlet 72 is arranged on the bottom wall of the dovetail groove 71, a water outlet pipe 35 communicated with the inner cavity of the collecting pipe 3 is arranged on the outer side wall of the collecting pipe 3, a dovetail block 351 inserted into the dovetail groove 71 is arranged on the outer side wall of one end, away from the collecting pipe 3, of the water outlet pipe 35, a limiting groove 711 is arranged on two opposite groove side walls of the dovetail groove 71, a limiting block 712 is inserted into the limiting groove 711, and one side.

Referring to fig. 4 and 5, a closing plug 36 for opening and closing the water outlet pipe 35 is arranged at one end of the water outlet pipe 35 away from the collecting pipe 3, a pull rope 361 is arranged on the closing plug 36, one end of the pull rope 361 away from the closing plug 36 is connected with the outer side wall of the collecting pipe 3, a flushing pipe 37 connected with the inner cavity of the collecting pipe 3 is arranged on the side wall of the collecting pipe 3, the flushing pipe 37 and the water outlet pipe 35 are both positioned at one side of the waterproof breathable film 28 away from the negative pressure tank 1, and a sealing cover 39 is arranged at one side; when collecting a water sample, the closing plug 36 is pulled out, the water outlet pipe 35 is opened, the limiting block 712 is pulled out, the dovetail groove 71 is inserted into the dovetail block 351, the collecting box 7 is installed on the collecting pipe 3, the limiting block 712 is inserted into the limiting groove 711, so that the collecting box 7 is fixed, the water outlet of the water outlet pipe 35 is aligned with the water inlet 72, when the collecting box 7 is completely collected, the limiting block 712 is pulled out, the collecting box 7 is pushed, the dovetail block 351 and the dovetail groove 71 are separated, the collecting box 7 is convenient to disassemble and install, and an operator can collect a plurality of water samples; after the water sample is collected, the water sample is plugged into the closing plug 36, the sealing cover 39 is opened, and water is flushed into the flushing pipe 37, so that residual sewage in the collecting pipe 3 and the water pumping pipe 4 is flushed, and the possibility of water sample residue is reduced.

The implementation principle of the embodiment is as follows: when a water sample is collected, the closing member 5 seals the water pumping pipe 4, the collecting box 7 is installed on the side wall of the collecting pipe 3, the water pumping pipe 4 is inserted into a water body, the closing of the closing member 5 on the water pumping pipe 4 is removed, the negative pressure component 2 forms negative pressure in the water pumping pipe 4, the water sample in the water body smoothly enters the water pumping pipe 4, and the water sample collection is completed in the water pumping pipe 3 and the collecting box 7, so that the possibility that the water sample on the surface of the water body enters the water pumping pipe 4 is reduced, and the accuracy of a detection result is improved; the filtering piece 6 retains impurities in the water body, and reduces the possibility that the impurities block the water pumping pipe 4.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a sewage sampling device for ecological remediation which characterized in that: the device comprises a water pumping pipe (4), a collecting pipe (3) which is arranged on the side wall of the water pumping pipe (4) and communicated with the water pumping pipe (4), and a collecting box (7) which is arranged on the side wall of the collecting pipe (3), wherein a negative pressure box (1) is arranged outside the water pumping pipe (4), and one end, far away from the water pumping pipe (4), of the collecting pipe (3) is connected with the negative pressure box (1);

be equipped with in negative pressure case (1) and be used for producing negative pressure in drinking-water pipe (4) negative pressure subassembly (2), drinking-water pipe (4) are close to the one end of collecting pipe (3) seals the setting, drinking-water pipe (4) are kept away from the one end of collecting pipe (3) is equipped with respectively and filters piece (6) and is used for opening and close closure member (5) of drinking-water pipe (4).

2. The sewage sampling device for ecological restoration according to claim 1, wherein: a connecting plate (31) is arranged at one end, far away from the negative pressure box (1), of the collecting pipe (3), a fixing groove (32) is formed in the side face of the connecting plate (31), and a fixing block (41) inserted into the fixing groove (32) is arranged on the outer side wall of the pumping pipe (4);

a positioning hole (33) is formed in the top wall of the connecting plate (31), the positioning hole (33) is communicated with the fixing groove (32), a limiting hole (42) is formed in the top wall of the fixing block (41) in a penetrating mode, a positioning block (34) is inserted into the positioning hole (33), and one side, inserted into the positioning hole (33), of the positioning block (34) is inserted into the limiting hole (42);

the side wall of the water pumping pipe (4) is provided with a water conveying pipe (43), and the water conveying pipe (43) is inserted into the collecting pipe (3).

3. The sewage sampling device for ecological restoration according to claim 1, wherein: the negative pressure component (2) comprises a negative pressure cylinder (21) arranged in the negative pressure box (1), a negative pressure plate (22) arranged in the negative pressure cylinder (21) and a lead screw (23) rotatably connected to one side, far away from the collecting pipe (3), of the negative pressure plate (22), the lead screw (23) is arranged along the thickness direction of the negative pressure plate (22), one end, far away from the negative pressure plate (22), of the lead screw (23) extends out of the negative pressure cylinder (21), the side wall of the negative pressure plate (22) is abutted to the inner side wall of the negative pressure cylinder (21), one side, far away from the lead screw (23), of the negative pressure plate (22) and the inner side wall of the negative pressure cylinder (21) form a negative pressure cavity (26), and the negative pressure cavity (26) is communicated with the collecting pipe (3);

be equipped with negative pressure motor (24) in negative pressure tank (1), be equipped with axis of rotation (25) on the motor shaft of negative pressure motor (24), the axis of rotation (25) with the axis of lead screw (23) is mutually perpendicular, the one end that negative pressure motor (24) were kept away from in axis of rotation (25) is equipped with drive bevel gear (29), it is connected with driven bevel gear (291) with drive bevel gear (29) engaged with to rotate on the lateral wall of negative pressure cylinder (21), lead screw (23) stretch out the one end of negative pressure cylinder (21) with driven bevel gear (291) threaded connection, be equipped with on the lateral wall of negative pressure tank (1) and supply through hole (11) that lead screw (23) stretched out.

4. The sewage sampling device for ecological restoration according to claim 3, wherein: be equipped with waterproof ventilated membrane (28) on the inside wall of collecting pipe (3), waterproof ventilated membrane (28) are close to negative pressure tank (1) sets up.

5. The sewage sampling device for ecological restoration according to claim 1, wherein: the closing member (5) comprises a closing plug (51) which is arranged on the water pumping pipe (4) and is far away from one end of the collecting pipe (3), a connecting rope (52) is arranged on the end wall of the closing plug (51), and one end, far away from the closing plug (51), of the connecting rope (52) is connected with the outer side wall of the negative pressure tank (1).

6. The sewage sampling device for ecological restoration according to claim 3, wherein: filter piece (6) including dismantle connect and keep away from in drinking-water pipe (4) filter mantle (61) of collecting pipe (3) one end, be equipped with connecting hole (63) that supply to connect rope (52) to pass on the side of filter mantle (61).

7. The sewage sampling device for ecological restoration according to claim 4, wherein: a water outlet pipe (35) is arranged on the side wall of the collecting pipe (3), and the water outlet pipe (35) is positioned on one side, away from the negative pressure box (1), of the waterproof breathable film (28);

keep away from outlet pipe (35) collecting pipe (3) one end is equipped with dovetail block (351), be equipped with on the roof of collecting box (7) and supply dovetail block (351) male dovetail (71), dovetail (71) are followed the radial setting of outlet pipe (35), all be equipped with spacing groove (711) on the double-phase opposite groove lateral wall of dovetail (71), spacing groove (711) interpolation is equipped with stopper (712), the lateral wall of stopper (712) with dovetail block (351) are inconsistent, be equipped with water inlet (72) that are connected with outlet pipe (35) on the tank bottom wall of dovetail (71).

8. The sewage sampling device for ecological restoration according to claim 7, wherein: be equipped with flushing pipe (37) on the lateral wall of collecting pipe (3), flushing pipe (37) are located waterproof ventilated membrane (28) with between outlet pipe (35), be equipped with on the lateral wall of collecting pipe (3) and be used for sealing the sealed lid (39) of flushing pipe (37), outlet pipe (35) are kept away from the one end of collecting pipe (3) is equipped with closed stopper (36) that are used for opening and close outlet pipe (35).

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