CN114323774A

CN114323774A - Urban underground sewage sampling device with depthkeeping is adjusted structure

Info

Publication number: CN114323774A
Application number: CN202111362768.XA
Authority: CN
Inventors: 孙元力
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-04-12

Abstract

The invention discloses an urban underground sewage sampling device with a depth-setting adjusting structure, which belongs to the field of urban underground environment detection, and the urban underground sewage sampling device with the depth-setting adjusting structure is characterized in that a water inlet is formed in the upper outer end wall of an outer barrel, a plugging block corresponding to the water inlet is connected in the outer barrel in a sliding manner, the plugging block and a floating block are connected through an auxiliary pull rope, the plugging block can be moved away from the inner side of the water inlet at a fixed depth by means of the floating of a floating component and the connection and pulling of the auxiliary pull rope in cooperation with the gravity action of the outer barrel, and external sewage enters the outer barrel from the water inlet, so that the underground sewage at the fixed depth can be collected in a sampling inner barrel, the sampling analysis of the depth-setting sewage is facilitated, and the diversity and the accuracy of the urban underground sewage detection are improved.

Description

Urban underground sewage sampling device with depthkeeping is adjusted structure

Technical Field

The invention relates to the field of urban underground environment detection, in particular to an urban underground sewage sampling device with a depth-setting adjusting structure.

Background

In the prior art, in order to ensure the health of the urban underground environment and avoid the pollution to the urban underground environment, the urban underground sewage can be regularly sampled and analyzed to avoid the urban underground sewage containing excessive harmful substances, and when the urban underground sewage is detected, a sewage sampling device is generally adopted to collect sewage samples.

Urban underground sewage sampling device among the prior art, it sets up to the davit form usually, pulls through the drawing, salvages the sample to secret sewage, and this mode is though can gather the sample to sewage, but because the sample davit when removing in sewage, is difficult to opening and the closure of nimble control davit, and sewage exists and continuously enters into the state in the davit, leads to being difficult to carry out the sample collection of the ration degree of depth to urban underground sewage, the accurate nature when being not convenient for guarantee urban underground sewage detection and analysis.

Therefore, we propose an urban underground sewage sampling device with a depth-setting adjustment structure to solve some of the problems in the prior art.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a municipal underground sewage sampling device with a depth-setting adjusting structure, which can realize sampling of municipal underground sewage with a quantitative depth, a water inlet hole is blocked by arranging a blocking block in an outer barrel in a sliding connection mode, and a floating block is connected above the blocking block through an auxiliary pull rope, so that when the outer barrel is thrown into sewage, the blocking block can move upwards relatively in the outer barrel to stagger the blocking of the water inlet hole by pulling the auxiliary pull rope, the sampling of sewage at the quantitative depth is realized, and the precision in detection and analysis of the municipal underground sewage is favorably ensured.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

The utility model provides an urban underground sewage sampling device with structure is adjusted to depthkeeping, which comprises an outer barrel, the upper end outer wall of urceolus is gone up around being provided with the inlet opening, the internally mounted of urceolus has the sample inner tube, the inside sliding connection of urceolus has the shutoff piece with inlet opening looks adaptation, and the shutoff piece covers directly over the sample inner tube, the vertical montant that runs through to the urceolus outside that is fixed with in top intermediate position department of shutoff piece, the top sliding connection of montant and urceolus, fixedly connected with main stay cord on the outer end wall of urceolus, the top of montant is connected with showy subassembly, and showy subassembly is including setting up the shell in the urceolus top, the symmetry is fixed with showy piece on the outer end wall of shell, the internally mounted of shell has vice stay cord, and the lower extreme of vice stay cord runs through and is connected with the upper end of montant behind the outer end wall of shell.

Furthermore, the top end of the vertical rod is rotatably connected with a shaft sleeve, and the bottom end of the auxiliary pull rope is fixedly connected to the top of the shaft sleeve.

Further, the intermediate position department of shell rotates and is connected with the pivot, and the outside of pivot is fixed with the wind-up roll that sets up inside the shell, and the even winding of vice stay cord is in the outside of wind-up roll, and the one end that the montant was kept away from to vice stay cord is connected on the outer end wall of wind-up roll, and both ends symmetry is fixed with the disc that sets up inside the shell about the wind-up roll.

Furthermore, one end of the rotating shaft is rotatably connected with one of the floating blocks, the other end of the rotating shaft penetrates through the other floating block and extends outwards, and a crank is fixedly installed at one end of the rotating shaft exposed outside the floating blocks.

Further, fixed welding has the sleeve on the below outer end wall of shell, and the lower extreme of vice stay cord alternates in telescopic inside, sliding connection between vice stay cord and the sleeve, and telescopic lower extreme evenly encircles and is fixed with a plurality of fixture blocks, and the thickness of a plurality of fixture blocks all sets up to thickening gradually from top to bottom, all be provided with on the outer end wall of a plurality of fixture blocks with the screw thread of sleeve outer end on-wall adaptation, the nut has been cup jointed to telescopic outside screw thread, evenly the scale has been carved on the outer end wall of vice stay cord.

Furthermore, the sampling inner cylinder is movably inserted in the outer cylinder, and the bottom of the outer cylinder is in threaded connection with a balancing weight with a conical structure.

Furthermore, a limiting ring arranged above the sampling inner barrel is fixedly arranged on the inner end wall of the outer barrel, and a spring is fixedly connected between the limiting ring and the plugging block.

Furthermore, the bottom of the plugging block is fixedly provided with a rubber sealing ring matched with the opening at the top of the sampling inner cylinder.

Further, the top of urceolus is vertical to be inserted and is equipped with the blast pipe, and the inside of shutoff piece is vertical to be fixed with the cover and establishes the sliding sleeve in the blast pipe outside, and sliding connection between sliding sleeve and the blast pipe, and the bottom of blast pipe extends to in the top opening of sample inner tube.

Furthermore, the upper end of the exhaust pipe is of a bent structure, and a one-way valve is fixedly mounted inside the upper end of the exhaust pipe.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme is through seting up the inlet opening on the top outer end wall of urceolus, and there is the shutoff piece corresponding with the inlet opening in the inside sliding connection of urceolus, connect the shutoff piece and float the piece through vice stay cord, can drag with the help of floating the subassembly and the connection of vice stay cord, the action of gravity of cooperation urceolus self, make the shutoff piece locate to move away from the inlet opening inboard in fixed point degree of depth, thereby make the inside underground sewage that can collect quantitative degree of depth department of sample inner tube, be favorable to sampling analysis to fixed point sewage, be convenient for promote city underground sewage and examine the variety and the accuracy of time measuring.

(2) Through rotating the axle sleeve and connecting at the top of montant to fixed connection between the bottom of vice stay cord and the top of axle sleeve can reduce the rotatory winding of vice stay cord and lead to the urceolus continuous rotation when whereabouts in sewage, stability when effectual ensured the device depthkeeping sample.

(3) Through rotating the wind-up roll and connecting the inside at the shell, and with the even outside at the wind-up roll of vice stay cord winding, can realize exploring out the length to the shell outside to vice stay cord with the help of the rotation of wind-up roll and control, be favorable to the staff to adjust the sample depth of urceolus in sewage according to the actual sampling demand, thereby the use flexibility of the device has been promoted, and simultaneously, be fixed with the disc on both ends about the wind-up roll, restrict the vice stay cord of winding on the wind-up roll outer end wall and block, avoid direct contact friction between the inner endwall of vice stay cord and shell, be favorable to promoting the smooth and easy nature when the vice stay cord of the device adjusts.

(4) One end of the rotating shaft extends to the outer side of the floating block, the crank is fixedly arranged at one end of the outer side of the rotating shaft, the length of the force arm can be effectively increased when the rotating shaft rotates, and convenience is facilitated when the rotating shaft is used.

(5) Through encircle fixing a plurality of fixture blocks under telescopic to set up the thickness of fixture block for top-down thickens gradually, when making the rotatory downstream of nut, can gather together the operation to a plurality of fixture blocks, can realize the flexibility fixed to vice stay cord, be convenient for adjust the position of vice stay cord in a flexible way according to the in-service use demand, the effectual use convenience that has ensured the device.

(6) Through inserting the inside of establishing the urceolus with the inner tube of taking a sample to with balancing weight threaded connection in the bottom of urceolus, can be convenient for change the inner tube of taking a sample, simultaneously, through the balancing weight that will be conical structure installing in the bottom of urceolus, can increase the counter weight of urceolus, promote the falling speed of urceolus in the sewage, be favorable to ensureing the device's job stabilization nature.

(7) Through setting up the spacing ring on the inner wall of urceolus, can carry out the backstop to the upper end of taking a sample inner tube, ensured the inner tube of taking a sample and pegged graft at the inside stability of urceolus, and simultaneously, through with spring coupling between plugging block and spacing ring, can when the device lifts, the pulling plugging block resets and carries out the shutoff to the inlet opening, thereby when avoiding lifting behind the urceolus sampling technique, external sewage enters into to the urceolus once more inside, lead to the sample confusion, be favorable to guaranteeing the device stability of depthkeeping sample.

(8) Through the bottom with rubber seal ring fixed mounting at the shutoff piece, when the shutoff piece covers in sample inner tube top, under the extrusion, rubber seal ring receives extrusion deformation to fill in the junction of shutoff piece and sample inner tube to be favorable to avoiding the inside sewage sample of sample inner tube to spill out at the device removes the in-process, be favorable to ensureing the stability of the device sample process.

(9) Through vertically inserting the blast pipe and establishing the top at the urceolus, and extend the bottom of blast pipe to the top opening of sample inner tube, can be favorable to ensureing that sewage pours into the inside of sample inner tube fast, be favorable to promoting the rapidity of the device to the sewage sample, through setting up the upper end with the blast pipe into the structure of buckling, and install the inside at the blast pipe with the check valve, make inside only can carrying out the air current unidirectional flow of blast pipe, avoid external sewage to flow backward to the sample inner tube through the blast pipe inside, the effectual device of having ensured is to the stable accurate nature of sewage sample.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front cross-sectional view of the present invention;

FIG. 3 is a schematic view of the structure at A in FIG. 2;

FIG. 4 is a front view of FIG. 2;

FIG. 5 is a schematic view of the structure at B in FIG. 4;

FIG. 6 is a schematic view of the structure at C in FIG. 4;

FIG. 7 is a side cross-sectional view of the present invention;

FIG. 8 is a side view of FIG. 7;

FIG. 9 is a front view of the present invention;

fig. 10 is a schematic view of the internal structure of the present invention in operation.

The reference numbers in the figures illustrate:

1. an outer cylinder; 101. a water inlet hole; 102. sampling an inner cylinder; 103. a plugging block; 104. a vertical rod; 105. a shaft sleeve; 106. a main pull rope; 2. a float assembly; 201. a housing; 202. a floating block; 203. a rotating shaft; 204. a wind-up roll; 205. an auxiliary pull rope; 206. a sleeve; 207. a clamping block; 208. a nut; 209. a crank; 3. a balancing weight; 4. a limiting ring; 401. a spring; 402. a rubber seal ring; 5. an exhaust pipe; 501. a sliding sleeve; 502. a one-way valve.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-10, a municipal underground sewage sampling device with depth-setting adjustment structure comprises an outer cylinder 1, a water inlet 101 is arranged on the outer end wall of the upper part of the outer cylinder 1 in a surrounding manner, a sampling inner cylinder 102 is arranged in the outer cylinder 1, a plugging block 103 matched with the water inlet 101 is connected in the outer cylinder 1 in a sliding manner, and the blocking block 103 is covered right above the sampling inner cylinder 102, a vertical rod 104 penetrating to the outer side of the outer cylinder 1 is vertically fixed at the middle position of the top of the blocking block 103, the vertical rod 104 is connected with the top of the outer cylinder 1 in a sliding way, a main pull rope 106 is fixedly connected on the outer end wall of the outer cylinder 1, a floating component 2 is connected above the vertical rod 104, and the floating assembly 2 comprises a shell 201 arranged above the outer cylinder 1, floating blocks 202 are symmetrically fixed on the outer end wall of the shell 201, an auxiliary pull rope 205 is arranged inside the shell 201, and the lower end of the auxiliary pull rope 205 penetrates through the outer end wall of the shell 201 and then is connected with the upper end of the vertical rod 104.

Referring to fig. 1, the top end of the vertical rod 104 is rotatably connected with the shaft sleeve 105, the bottom end of the auxiliary pull rope 205 is fixedly connected to the top of the shaft sleeve 105, when the device works, when the auxiliary pull rope 205 is rotatably wound, the shaft sleeve 105 is rotatably connected with the vertical rod 104, so that the auxiliary pull rope 205 is rotatably wound at the shaft sleeve 105 to be twisted and released, the shaft sleeve 105 is rotatably connected to the top of the vertical rod 104, and the bottom end of the auxiliary pull rope 205 is fixedly connected with the top of the shaft sleeve 105, so that the phenomenon that the outer cylinder 1 continuously rotates when falling in sewage due to the rotation winding of the auxiliary pull rope 205 can be reduced, and the stability of the device during depth setting sampling is effectively guaranteed.

Referring to fig. 2, 4 and 7-8, a rotating shaft 203 is rotatably connected to the middle position of the housing 201, a wind-up roller 204 disposed inside the housing 201 is fixed to the outer side of the rotating shaft 203, the auxiliary pull ropes 205 are uniformly wound around the outer side of the wind-up roller 204, one end of the auxiliary pull rope 205 away from the vertical rod 104 is connected to the outer end wall of the wind-up roller 204, and discs disposed inside the housing 201 are symmetrically fixed to the left and right ends of the wind-up roller 204, when the device works, a worker can drive the wind-up roller 204 fixed to the outer side thereof to rotate inside the housing 201 by rotating the rotating shaft 203, the auxiliary pull rope 205 fixedly connected to the outer end wall thereof is wound and released by the forward and backward rotation of the wind-up roller 204, so as to regulate and control the length of the auxiliary pull rope 205 extending out of the outer side of the housing 201, by rotatably connecting the wind-up roller 204 inside the housing 201, and uniformly wind the auxiliary pull rope 205 around the outer side of the wind-up roller 204, can realize controlling the length that vice stay cord 205 stretches out to the shell 201 outside with the help of wind-up roll 204's rotation, be favorable to the staff to adjust the sampling depth of urceolus 1 in sewage according to actual sampling demand, thereby the device's use flexibility has been promoted, simultaneously, through be fixed with the disc on the both ends about wind-up roll 204, restrict the vice stay cord 205 of winding on wind-up roll 204 outer end wall and block, avoid direct contact friction between the inner end wall of vice stay cord 205 and shell 201, smooth and easy nature when being favorable to promoting the device vice stay cord 205 adjustment.

Referring to fig. 4, one end of the rotating shaft 203 is rotatably connected to one of the floating blocks 202, the other end of the rotating shaft 203 penetrates through the other floating block 202 and extends outward, and one end of the rotating shaft 203 exposed outside the floating block 202 is fixedly provided with a crank 209.

Referring to fig. 5 and 9, a sleeve 206 is fixedly welded on the lower outer end wall of the housing 201, the lower end of the auxiliary pull rope 205 is inserted into the sleeve 206, the auxiliary pull rope 205 is slidably connected with the sleeve 206, a plurality of blocks 207 are uniformly fixed on the lower end of the sleeve 206 in a surrounding manner, the thickness of each block 207 is gradually increased from top to bottom, the outer end walls of the blocks 207 are provided with threads matched with the outer end wall of the sleeve 206, the outer threads of the sleeve 206 are sleeved with a nut 208, and the outer end wall of the auxiliary pull rope 205 is uniformly marked with scales, when the device works, when the auxiliary pull rope 205 is adjusted to a proper length, a worker rotates the nut 208 to move the outer side of the block 207 from the outer side of the sleeve 206, under the limiting action of the nut 208, the blocks 207 are inwardly converged and tightened, so that the auxiliary pull rope 205 performs a clamping operation to fix the position of the auxiliary pull rope 205, avoid vice stay cord 205 to remove at will in the use, through fixing a plurality of fixture blocks 207 around under sleeve 206, and set up the thickness of fixture block 207 into top-down thickening gradually, when making the rotatory downstream of nut 208, can gather together the operation to a plurality of fixture blocks 207, can realize the flexibility fixed to vice stay cord 205, be convenient for adjust the position of vice stay cord 205 according to the in-service use demand is nimble, the effectual use convenience that has ensured the device.

Please refer to fig. 4, the sampling inner cylinder 102 is movably inserted into the outer cylinder 1, the bottom of the outer cylinder 1 is connected with the counter weight 3 with a conical structure through a thread, when the device works, the worker rotates the counter weight 3 to take it off from the bottom of the outer cylinder 1, then the sampling inner cylinder 102 is taken out through drawing to replace the sampling inner cylinder 102, the sampling inner cylinder 102 is inserted into the outer cylinder 1, and the counter weight 3 is connected to the bottom of the outer cylinder 1 through a thread, so as to be convenient for replacing the sampling inner cylinder 102, meanwhile, the counter weight of the outer cylinder 1 can be increased by installing the counter weight 3 with a conical structure at the bottom of the outer cylinder 1, thereby improving the falling speed of the outer cylinder 1 in sewage, and being beneficial to ensuring the working stability of the device.

Please refer to fig. 6, a limiting ring 4 disposed above the sampling inner cylinder 102 is fixedly mounted on the inner end wall of the outer cylinder 1, and a spring 401 is fixedly connected between the limiting ring 4 and the blocking block 103, when the device works, the limiting ring 4 is disposed on the inner end wall of the outer cylinder 1, which can stop the upper end of the sampling inner cylinder 102, thereby ensuring the stability of the sampling inner cylinder 102 inserted in the outer cylinder 1, and meanwhile, the spring 401 is connected between the blocking block 103 and the limiting ring 4, when the device is lifted, the blocking block 103 is pulled to reset to block the water inlet 101, thereby avoiding external sewage from entering the outer cylinder 1 again when the sampling technology of the outer cylinder 1 is lifted, leading to sampling disorder, and being beneficial to ensuring the stability of the device for sampling at a fixed depth.

Referring to fig. 6, the bottom of the plugging block 103 is fixedly provided with a rubber sealing ring 402 adapted to the top opening of the sampling inner cylinder 102, when the device works, the rubber sealing ring 402 is fixedly arranged at the bottom of the plugging block 103, when the plugging block 103 covers the sampling inner cylinder 102, the rubber sealing ring 402 is extruded and deformed to be filled at the joint of the plugging block 103 and the sampling inner cylinder 102 under the extrusion action, so that the device is favorable for preventing a sewage sample inside the sampling inner cylinder 102 from spilling out in the moving process of the device, and is favorable for ensuring the stability of the device in the sampling process.

Referring to fig. 3, an exhaust pipe 5 is vertically inserted into the top of the outer cylinder 1, a sliding sleeve 501 sleeved outside the exhaust pipe 5 is vertically fixed inside the plugging block 103, and the sliding sleeve 501 is slidably connected with the exhaust pipe 5, the bottom end of the exhaust pipe 5 extends into the upper opening of the sampling inner cylinder 102, when external sewage enters the outer cylinder 1 through the water inlet 101, in the sewage filling process, original air inside the outer cylinder 1 is discharged outwards through the exhaust pipe 5, which is beneficial to ensuring the rapidity of the sewage filling into the sampling inner cylinder 102, by vertically inserting the exhaust pipe 5 into the top of the outer cylinder 1, and extending the bottom end of the exhaust pipe 5 into the upper opening of the sampling inner cylinder 102, the sewage can be ensured to be quickly filled into the sampling inner cylinder 102, which is beneficial to improving the rapidity of the device for sewage sampling.

Referring to fig. 4, the upper end of the exhaust pipe 5 is provided with a bent structure, and the check valve 502 is fixedly mounted inside the upper end of the exhaust pipe 5, when the device works, the upper end of the exhaust pipe 5 is provided with the bent structure, and the check valve 502 is mounted inside the exhaust pipe 5, so that the exhaust pipe 5 can only perform one-way airflow flow inside, external sewage is prevented from flowing backwards into the sampling inner cylinder 102 through the exhaust pipe 5, and the stability and accuracy of the device for sewage sampling are effectively guaranteed.

Referring to fig. 4 and 10, when the device is operated, a worker adjusts the length of the auxiliary pull rope 205 extending outside the housing 201 according to the sampling depth required by the municipal underground sewage, and then, the worker slowly lowers the outer cylinder 1 into the sewage by pulling the main pull rope 106, and during the releasing process, under the floating action of the floating block 202, the upper end of the secondary pull rope 205 in the shell 201 is positioned on the sewage level, when the outer cylinder 1 descends to a preset depth, the auxiliary pull rope 205 is in a stretched state, at the moment, the vertical rod 104 pulls the blocking block 103 to make the blocking block 103 unable to move downwards continuously, under the action of the gravity of the outer cylinder 1, the outer cylinder 1 continuously slides downwards, the opposite plugging blocks 103 move upwards in the outer cylinder 1, the water inlet hole 101 is plugged, and at the moment, external sewage flows from the water inlet hole 101 to the inside of the outer cylinder 1 and flows into the sampling inner cylinder 102 to be collected.

After the outer cylinder 1 stays in the sewage at the preset position for a period of time, the sewage at the position of the fixed depth is filled in the sampling inner cylinder 102, the worker can drag the outer cylinder 1 up by pulling the main pull rope 106, thereby, the sampling operation with the fixed depth is carried out, by opening the water inlet hole 101 on the upper outer end wall of the outer cylinder 1, and a blocking block 103 corresponding to the water inlet 101 is slidably connected to the inside of the outer cylinder 1, the blocking block 103 and the floating block 202 are connected by a sub-cord 205, the plugging block 103 can be moved away from the inner side of the water inlet hole 101 at a fixed point depth by means of the floating component 2 and the connection pulling of the auxiliary pull rope 205, and the gravity action of the outer cylinder 1 is matched, therefore, underground sewage at the quantitative depth can be collected in the sampling inner cylinder 102, sampling analysis on the fixed-depth sewage is facilitated, and the diversity and accuracy of urban underground sewage during detection are improved conveniently.

The above are merely preferred embodiments of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides an urban underground sewage sampling device with depthkeeping is adjusted structure, includes urceolus (1), its characterized in that: the upper outer end wall of the outer barrel (1) is provided with a water inlet hole (101) in an encircling manner, the inner portion of the outer barrel (1) is provided with a sampling inner barrel (102), the inner portion of the outer barrel (1) is connected with a blocking block (103) matched with the water inlet hole (101) in a sliding manner, the blocking block (103) covers the sampling inner barrel (102), a vertical rod (104) penetrating to the outer side of the outer barrel (1) is vertically fixed at the middle position of the top of the blocking block (103), the vertical rod (104) is connected with the top of the outer barrel (1) in a sliding manner, a main pull rope (106) is fixedly connected onto the outer end wall of the outer barrel (1), a floating component (2) is connected above the vertical rod (104), the floating component (2) comprises a shell (201) arranged above the outer barrel (1), and floating blocks (202) are symmetrically fixed on the outer end wall of the shell (201), the inside of shell (201) is installed with vice stay cord (205), and is connected with the upper end of montant (104) behind the outer end wall of shell (201) is run through to the lower extreme of vice stay cord (205).

2. The municipal underground sewage sampling device with depth-setting adjustment structure according to claim 1, wherein: the top end of the vertical rod (104) is rotatably connected with a shaft sleeve (105), and the bottom end of the auxiliary pull rope (205) is fixedly connected to the top of the shaft sleeve (105).

3. The municipal underground sewage sampling device with depth-setting adjustment structure according to claim 1, wherein: the utility model discloses a winding machine, including shell (201), the intermediate position department of shell (201) rotates and is connected with pivot (203), and the outside of pivot (203) is fixed with wind-up roll (204) that set up in shell (201) inside, the even winding in the outside of wind-up roll (204) of vice stay cord (205), the one end that montant (104) were kept away from in vice stay cord (205) is connected on the outer end wall of wind-up roll (204), both ends symmetry is fixed with the disc that sets up in shell (201) inside about wind-up roll (204).

4. The municipal underground sewage sampling device with depth-setting adjustment structure according to claim 3, wherein: one end of the rotating shaft (203) is rotatably connected with one of the floating blocks (202), the other end of the rotating shaft penetrates through the other floating block (202) and extends outwards, and a crank (209) is fixedly installed at one end, exposed out of the floating block (202), of the rotating shaft (203).

5. The municipal underground sewage sampling device with depth-setting adjustment structure according to claim 3, wherein: fixed welding has sleeve (206) on the below outer end wall of shell (201), the lower extreme of vice stay cord (205) alternates in the inside of sleeve (206), sliding connection between vice stay cord (205) and sleeve (206), the lower extreme of sleeve (206) evenly encircles and is fixed with a plurality of fixture blocks (207), and the thickness of a plurality of fixture blocks (207) all sets up to from the top down and thickens gradually, and is a plurality of all be provided with on the outer end wall of fixture block (207) with the screw thread of sleeve (206) outer end wall on the adaptation, nut (208) have been cup jointed to the outside screw thread of sleeve (206), evenly the scale has been carved with on the outer end wall of vice stay cord (205).

6. The municipal underground sewage sampling device with depth-setting adjustment structure according to claim 1, wherein: the sampling inner cylinder (102) is movably inserted in the outer cylinder (1), and the bottom of the outer cylinder (1) is in threaded connection with a balancing weight (3) with a conical structure.

7. The municipal underground sewage sampling device with depth-setting adjustment structure according to claim 1, wherein: the inner end wall of the outer barrel (1) is fixedly provided with a limiting ring (4) arranged above the sampling inner barrel (102), and a spring (401) is fixedly connected between the limiting ring (4) and the plugging block (103).

8. The municipal underground sewage sampling device with depth-setting adjustment structure according to claim 1, wherein: and a rubber sealing ring (402) matched with the opening at the top of the sampling inner cylinder (102) is fixedly arranged at the bottom of the plugging block (103).

9. The municipal underground sewage sampling device with depth-setting adjustment structure according to claim 1, wherein: the exhaust pipe (5) is vertically inserted into the top of the outer barrel (1), a sliding sleeve (501) sleeved outside the exhaust pipe (5) is vertically fixed inside the blocking block (103), the sliding sleeve (501) is connected with the exhaust pipe (5) in a sliding mode, and the bottom end of the exhaust pipe (5) extends into an opening above the sampling inner barrel (102).

10. The municipal underground sewage sampling device with depth-setting adjustment structure according to claim 9, wherein: the upper end of the exhaust pipe (5) is of a bent structure, and a one-way valve (502) is fixedly mounted inside the upper end of the exhaust pipe (5).