CN211546097U

CN211546097U - Automatic regulating system for water level of constructed wetland

Info

Publication number: CN211546097U
Application number: CN201921637925.1U
Authority: CN
Inventors: 张�荣
Original assignee: Dongxu Lantian Ecological Environmental Protection Technology Co ltd
Current assignee: Dongxu Lantian Ecological Environmental Protection Technology Co ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-09-22
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses an automatic adjusting system for the water level of an artificial wetland, which relates to the technical field of artificial wetlands, and has the key points of the technical proposal that the system comprises an adjusting tank, a water collecting pipe, a wetland water outlet pipe, a rotating pipe and a water level adjusting pipe which are respectively arranged at the two sides of the artificial wetland tank; a sealing mechanism is arranged between the rotating pipe and the water collecting pipe; a driving device for driving the water level adjusting pipe to rotate is arranged between the rotating pipe and the adjusting tank, and comprises a first motor fixed at the top of the adjusting tank, a driving sprocket fixed on the outer peripheral surface of the output end of the first motor, a driven sprocket fixed on one side of the rotating pipe close to the artificial wetland tank, and a chain for enabling the driving sprocket and the driven sprocket to be linked; a fixing device used for fixing the orientation of the water level adjusting pipe is arranged between the rotating pipe and the adjusting tank. The utility model provides a be not convenient for adjust the problem of the orientation of water level adjusting pipe open end, reached the effect of being convenient for adjust the orientation of water level adjusting pipe open end.

Description

Automatic regulating system for water level of constructed wetland

Technical Field

The utility model relates to an artificial wetland technical field, more specifically the theory that says so, it relates to an artificial wetland water level automatic regulating system.

Background

At present, the artificial wetland is an artificially constructed ecological system, realizes the purification treatment of sewage through the combined action of three aspects of physics, chemistry and biology between wetland plants and microorganisms, and has the advantages of simple structure, low energy consumption, good effluent quality, easy operation, low operating cost and the like.

The prior art can refer to Chinese invention patent with publication number CN109437405A, which discloses an automatic adjusting system and method for water level of artificial wetland, comprising an adjusting tank communicated with the artificial wetland tank, a water collecting tank and a water collecting pipe arranged in the artificial wetland, wherein one end of the water collecting pipe is bent and extended above the water surface to be connected with an L-shaped water level adjusting pipe, the other end of the water collecting pipe is fixedly connected with a wetland water outlet pipe, the water level adjusting pipe, the water collecting pipe and the wetland water outlet pipe are mutually connected to form a communicating vessel, and the flowing direction of water flow in the water collecting pipe is adjusted by adjusting the orientation of the opening end of the water level adjusting pipe.

However, the above-mentioned water level adjusting system lacks a means for driving the water level adjusting pipe to rotate, and it is inconvenient to adjust the orientation of the open end of the water level adjusting pipe.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an artificial wetland water level automatic regulating system, it rotates through chain drive water level control pipe, has reached the effect of being convenient for adjust water level control pipe open end orientation.

In order to achieve the above purpose, the utility model provides a following technical scheme:

an automatic adjusting system for the water level of an artificial wetland comprises an adjusting tank, a water collecting pipe, a wetland water outlet pipe, a rotating pipe and a water level adjusting pipe, wherein the adjusting tank and the water collecting tank are respectively arranged on two sides of the artificial wetland tank; a sealing mechanism used for sealing the joint of the water collecting pipe and the rotating pipe is arranged between the rotating pipe and the water collecting pipe;

a driving device for driving the water level adjusting pipe to rotate is arranged between the rotating pipe and the adjusting tank, and comprises a first motor fixed at the top of the adjusting tank, a driving sprocket fixed on the outer peripheral surface of the output end of the first motor, a driven sprocket fixed on one side of the rotating pipe close to the artificial wetland tank, and a chain for enabling the driving sprocket and the driven sprocket to be linked; and a fixing device used for fixing the orientation of the water level adjusting pipe is arranged between the rotating pipe and the adjusting tank.

By adopting the technical scheme, the first motor drives the driving chain wheel to rotate, the driving chain wheel drives the driven chain wheel to rotate through the chain, the driven chain wheel drives the water level adjusting pipe to rotate through the rotating pipe, and the height of the opening end of the water level adjusting pipe is adjusted; when the open end of the water level adjusting pipe faces downwards, the height of the open end of the water level adjusting pipe is lower than that of the open end of the wetland water outlet pipe, and water flows out of the wetland water outlet pipe; when the open end of the water level adjusting pipe is upward, the open end of the water level adjusting pipe is higher than the open end of the wetland water outlet pipe, and water flows back to the adjusting tank from the water collecting tank through the water collecting pipe. The direction of the opening end of the water level adjusting pipe is adjusted through the first motor, and then the flowing direction of water flow in the water collecting pipe is adjusted.

The utility model discloses further set up to: the fixing device comprises a second motor and two clamping plates which are fixed on one side of the adjusting tank, which is far away from the artificial wetland pool, a first connecting rod which is rotatably arranged on the opposite inner sides of the two clamping plates, a second connecting rod which is hinged with one end of the first connecting rod, which is far away from the second motor, a fixed circular pipe which is arranged on the peripheral surface of the rotating pipe in a sliding manner along the axial direction of the driven chain wheel, and a clamping mechanism which is arranged between the fixed circular pipe and the rotating pipe and is used for clamping the rotating; a square bulge is fixed on the peripheral surface of the fixed circular tube and hinged with the end part of the second connecting rod; and the output end of the second motor is fixedly connected with the end part of the first connecting rod.

Through adopting above-mentioned technical scheme, the second motor drives first connecting rod and rotates, because the contained angle grow between first connecting rod and the second connecting rod to make the linear distance between first connecting rod tip and the second connecting rod tip grow, the second connecting rod drives fixed pipe and slides to being close to collector pipe one side along the rotating tube axial, is convenient for drive fixed pipe through the second motor and follows the rotating tube axial and slide.

The utility model discloses further set up to: the clamping mechanism comprises a pressing piece fixed on the peripheral surface of the rotating pipe, two sinking grooves oppositely formed in one side, close to the artificial wetland pool, of the fixed circular pipe, two first springs respectively fixed on the opposite inner sides of the two sinking grooves, and two pressing pieces arranged in the two sinking grooves in a sliding mode along the radial direction of the fixed circular pipe; one ends of the two first springs, which are close to the rotating pipe, are fixedly connected with one sides of the pressing pieces, which are far away from the rotating pipe, respectively; a pressing component used for pushing the pressing piece to move towards one side far away from the rotating pipe is arranged between the pressing piece and each pressing piece; the two pressing pieces and the two sinking grooves are correspondingly provided with limiting assemblies for preventing the pressing pieces from being separated from the sinking grooves.

Through adopting above-mentioned technical scheme, fixed pipe slip in-process, the pressing part contacts with the pressing part, and the pressing part radially supports along fixed pipe and presses the pressing part under the first spring action to make the rotating tube be fixed in fixed pipe, be convenient for make the open end of water level control pipe keep towards unchangeable when first motor output end stop rotating.

The utility model discloses further set up to: the limiting assembly comprises a circular groove formed at the bottom of the sinking groove, a limiting circular ring fixed on the inner circumferential surface of the circular groove, a limiting circular sheet arranged in the circular groove in a sliding manner along the radial direction of the fixing circular pipe, and a connecting shaft fixed on one side of the limiting circular sheet close to the rotating pipe; one end of the connecting shaft, which is close to the rotating tube, is fixedly connected with one side of the pressing piece, which is far away from the rotating tube.

Through adopting above-mentioned technical scheme, first spring exerts elasticity to the pressing piece, and the pressing piece drives the connecting axle and slides in the circular slot, and the connecting axle stops sliding when sliding to spacing disk and spacing ring contact, is convenient for reduce the possibility that the connecting axle breaks away from the circular slot to make the pressing piece keep sliding in heavy inslot.

The utility model discloses further set up to: the pressing component comprises two inclined planes which are respectively arranged on the opposite inner sides of the pressing part and the pressing part.

Through adopting above-mentioned technical scheme, support the pressing part through the inclined plane after pressing part and pressing part contact to make the pressing part radially move to heavy inslot along fixed pipe, be convenient for impress the pressing part in heavy inslot.

The utility model discloses further set up to: the fixed circular tube is fixed with the fender ring that is used for preventing the rotating tube to pass fixed circular tube near second motor one side, it is used for carrying out absorbing damper to the rotating tube to keep off to be provided with between ring and the rotating tube.

Through adopting above-mentioned technical scheme, it is spacing and then prevent fixed pipe to continue to move to one side of being close to the collector pipe through keeping off the ring to the rotating pipe, reduces because the possibility that the pressfitting piece that the excessive movement of fixed pipe caused breaks away from with the pressing part.

The utility model discloses further set up to: the damping assembly comprises a second spring fixed on one side, close to the rotating pipe, of the baffle ring and a damping plate fixed on one end, far away from the baffle ring, of the second spring.

Through adopting above-mentioned technical scheme, the shock attenuation board is supported to being close to second motor one side after the contact of rotating tube and shock attenuation board, and the shock attenuation board is the rotating tube shock attenuation under the elastic force effect of second spring, reduces the rotating tube and keeps off the possibility that the ring bumps.

The utility model discloses further set up to: the sealing mechanism comprises an annular groove arranged on the peripheral surface of the water collecting pipe and a sealing strip fixed on the peripheral surface of the rotating pipe and used for being connected with the annular groove in an inserting mode.

Through adopting above-mentioned technical scheme, the water droplet that water level control pipe and collector pipe junction overflowed can be blockked by the sealing strip when to the sealing strip, is convenient for reduce the possibility that the water droplet that overflows flows out the rotating tube.

To sum up, the utility model discloses compare and have following beneficial effect in prior art:

1. the direction of the opening end of the water level adjusting pipe is adjusted through chain transmission, so that the flow direction of water flow in the water collecting pipe is adjusted;

2. the fixed circular tube is connected with the second motor through the connecting rod, so that the fixed circular tube is driven by the second motor to slide along the axial direction of the rotating tube;

3. the rotating pipe is fixed in the fixed circular pipe in a mode that the pressing piece is pressed against the pressing piece, so that the opening end of the water level adjusting pipe is kept unchanged in orientation.

Drawings

Fig. 1 is a schematic structural view of the present invention;

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

FIG. 3 is a schematic structural view of the center display driving device of the present invention;

FIG. 4 is an enlarged schematic view at A of FIG. 1;

FIG. 5 is an enlarged schematic view at B of FIG. 2;

FIG. 6 is an enlarged schematic view at C of FIG. 2;

fig. 7 is an enlarged schematic view at D in fig. 3.

In the figure: 1. an artificial wetland pool; 11. a regulating tank; 12. a water collecting tank; 13. a water collection pipe; 14. a wetland water outlet pipe; 15. rotating the tube; 16. a water level regulating pipe; 17. a water outlet valve; 2. a sealing mechanism; 21. an annular groove; 22. a sealing strip; 3. a drive device; 31. a first motor; 32. a drive sprocket; 33. a driven sprocket; 34. a chain; 4. a fixing device; 41. a second motor; 42. a splint; 43. a first link; 44. a second link; 45. fixing a circular tube; 451. a square bulge; 46. a clamping mechanism; 461. a pressing member; 462. sinking a groove; 463. a first spring; 464. a pressing member; 465. a pressing component; 4651. a bevel; 466. a limiting component; 4661. a circular groove; 4662. a limiting ring; 4663. limiting the wafer; 4664. a connecting shaft; 467. a baffle ring; 468. a shock absorbing assembly; 4681. a second spring; 4682. a shock absorbing plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example (b): an automatic adjusting system for the water level of an artificial wetland is shown in fig. 1 and 2 and comprises an adjusting tank 11 and a water collecting tank 12 which are respectively arranged at two sides of an artificial wetland tank 1, a water collecting pipe 13 which is arranged in the artificial wetland tank 1 in a penetrating way, a wetland water outlet pipe 14 which is vertically fixed on the outer peripheral surface of the water collecting pipe 13, a rotating pipe 15 which is rotationally connected with the water collecting pipe 13 and a water level adjusting pipe 16 which is fixed on the inner peripheral surface of the rotating pipe 15; the wetland water outlet pipe 14 is positioned in the water collecting tank 12, and one end of the water collecting pipe 13 far away from the wetland water outlet pipe 14 is fixedly connected with a water outlet valve 17; the water level adjusting pipe 16 is L-shaped and is positioned in the adjusting tank 11, one end of the water collecting pipe 13 close to the water level adjusting pipe 16 is bent upwards to be above the water surface and is rotatably connected with the water level adjusting pipe 16 through the rotating pipe 15; a sealing mechanism 2 for sealing the joint of the water collecting pipe 13 and the rotating pipe 15 is arranged between the rotating pipe 15 and the water collecting pipe 13. And adjusting the water level adjusting pipe 16 and enabling the open end of the water level adjusting pipe 16 to face downwards, wherein the open end of the water level adjusting pipe 16 is lower than the open end of the wetland water outlet pipe 14, water flows out of the wetland water outlet pipe 14, when the open end of the water level adjusting pipe 16 faces upwards, the open end of the water level adjusting pipe 16 is higher than the open end of the wetland water outlet pipe 14, and water flows back to the adjusting tank 11 from the water collecting tank 12 through the water collecting pipe 13.

As shown in fig. 3, a driving device 3 for driving the water level adjusting pipe 16 to rotate is arranged between the rotating pipe 15 and the adjusting tank 11, and the driving device 3 comprises a first motor 31 fixed at the top of the adjusting tank 11, a driving sprocket 32 fixed on the outer peripheral surface of the output end of the first motor 31, a driven sprocket 33 fixed on one side of the rotating pipe 15 close to the artificial wetland tank 1, and a chain 34 for linking the driving sprocket 32 and the driven sprocket 33; a fixing device 4 for fixing the orientation of the water level adjusting pipe 16 is arranged between the rotating pipe 15 and the adjusting tank 11. The first motor 31 drives the driving sprocket 32 to rotate, the driving sprocket 32 drives the driven sprocket 33 to rotate through the chain 34, and the driven sprocket 33 drives the water level adjusting pipe 16 to rotate through the rotating pipe 15, so as to adjust the height of the opening end of the water level adjusting pipe 16.

As shown in fig. 3 and 4, the fixing device 4 includes a second motor 41 and two clamping plates 42 fixed on one side of the adjusting tank 11 far from the artificial wetland tank 1, a first connecting rod 43 rotatably mounted on the opposite inner sides of the two clamping plates 42, a second connecting rod 44 hinged to one end of the first connecting rod 43 far from the second motor 41, a fixed circular tube 45 slidably arranged on the outer circumferential surface of the rotating tube 15 along the axial direction of the driven sprocket 33, and a clamping mechanism 46 arranged between the fixed circular tube 45 and the rotating tube 15 for clamping the rotating tube 15; a square protrusion 451 is fixed on the outer peripheral surface of the fixed circular tube 45, and the square protrusion 451 is hinged with the end part of the second connecting rod 44; the output end of the second motor 41 is fixedly connected with the end of the first connecting rod 43. The second motor 41 drives the first connecting rod 43 to rotate, and the included angle between the first connecting rod 43 and the second connecting rod 44 is increased, so that the linear distance between the end of the first connecting rod 43 and the end of the second connecting rod 44 is increased, and the second connecting rod 44 drives the fixed circular tube 45 to slide along the axial direction of the rotating tube 15 to the side close to the water collecting tube 13.

As shown in fig. 6, the clamping mechanism 46 includes a pressing member 461 fixed on the outer peripheral surface of the rotating tube 15, two sinking grooves 462 oppositely arranged on one side of the fixed circular tube 45 close to the artificial wetland pool 1, two first springs 463 respectively fixed on the opposite inner sides of the two sinking grooves 462, and two pressing members 464 respectively slidably arranged in the two sinking grooves 462 along the radial direction of the fixed circular tube 45, one ends of the two first springs 463 close to the rotating tube 15 are respectively fixedly connected with one sides of the pressing members 464 far away from the rotating tube 15, a pressing member 465 for pushing the pressing members 464 to move towards one side far away from the rotating tube 15 is respectively arranged between the pressing member 461 and each pressing member 464, and a limiting member 466 for preventing the pressing members 464 from separating from the sinking grooves 462 is correspondingly arranged between the two pressing members 464 and the two sinking grooves 462. The fixed circular tube 45 slides on the outer circumferential surface of the rotating tube 15 to the side close to the water collecting tube 13, and after the pressing piece 464 contacts with the pressing piece 461, the pressing piece 464 presses the pressing piece 461 under the action of the first spring 463, so that the rotating tube 15 is fixed in the fixed circular tube 45.

As shown in fig. 6, the position-limiting assembly 466 includes a circular groove 4661 opened at the bottom of the sinking groove 462, a position-limiting ring 4662 fixed on the inner circumferential surface of the circular groove 4661, a position-limiting disc 4663 slidably arranged in the circular groove 4661 along the radial direction of the fixed circular tube 45, and a connecting shaft 4664 fixed on one side of the position-limiting disc 4663 close to the rotating tube 15, wherein one end of the connecting shaft 4664 close to the rotating tube 15 is fixedly connected to one side of the pressing member 464 far from the rotating tube 15. The first spring 463 applies an elastic force to the pressing member 464, the pressing member 464 drives the connecting shaft 4664 to slide in the circular groove 4661, and the connecting shaft 4664 stops sliding when the limiting circular piece 4663 contacts with the limiting circular ring 4662, so that the pressing member 464 is limited.

As shown in fig. 6, the pressing member 465 includes two inclined surfaces 4651 respectively disposed on opposite inner sides of the pressing member 461 and the pressing member 464. After the pressing piece 461 contacts with the pressing piece 464, the pressing piece 464 is pressed by the inclined surface 4651, so that the pressing piece 464 moves towards the inner side of the sinking groove 462 along the radial direction of the fixed circular tube 45.

As shown in fig. 5, a stop ring 467 for preventing the rotating pipe 15 from passing through the fixed circular pipe 45 is fixed to the fixed circular pipe 45 at a side close to the second motor 41, and a damping assembly 468 for damping the rotating pipe 15 is disposed between the stop ring 467 and the rotating pipe 15. The stop ring 467 limits the rotating pipe 15 and prevents the fixed circular pipe 45 from moving to the side close to the water collecting pipe 13, so as to reduce the possibility that the pressing part 461 and the pressing part 464 are separated due to the excessive movement of the fixed circular pipe 45.

As shown in fig. 5, the damper assembly 468 includes a second spring 4681 fixed to the stopper 467 at a side close to the rotation pipe 15 and a damper plate 4682 fixed to an end of the second spring 4681 remote from the stopper 467. After the rotating tube 15 is contacted with the damping plate 4682, one side of the rotating tube 15 close to the second motor 41 is pressed against the damping plate 4682, the damping plate 4682 damps the rotating tube 15 under the action of the elastic force of the second spring 4681, and the possibility that the rotating tube 15 collides with the stop ring 467 is reduced.

As shown in fig. 7, the sealing mechanism 2 includes an annular groove 21 opened on the outer peripheral surface of the water collecting pipe 13 and a sealing strip 22 fixed to the outer peripheral surface of the rotary pipe 15 for being inserted into the annular groove 21. When water drops overflowing from the joint of the water level adjusting pipe 16 and the water collecting pipe 13 flow to the sealing strip 22, the water drops can be blocked by the sealing strip 22, so that the possibility that the overflowing water drops flow out of the rotating pipe 15 is reduced.

The working principle of the embodiment is as follows:

the first motor 31 drives the driving sprocket 32 to rotate, the driving sprocket 32 drives the driven sprocket 33 to rotate through the chain 34, and the driven sprocket 33 drives the water level adjusting pipe 16 to rotate through the rotating pipe 15, so that the height of the opening end of the water level adjusting pipe 16 is adjusted; the second motor 41 drives the first connecting rod 43 to rotate, and as the included angle between the first connecting rod 43 and the second connecting rod 44 is increased, the linear distance between the end part of the first connecting rod 43 and the end part of the second connecting rod 44 is increased, and the second connecting rod 44 drives the fixed circular pipe 45 to slide towards one side close to the water collecting pipe 13 along the axial direction of the rotating pipe 15; the fixed circular tube 45 slides on the outer circumferential surface of the rotating tube 15 to the side close to the water collecting tube 13, after the pressing piece 464 contacts with the pressing piece 461, the pressing piece 464 presses the pressing piece 464 through the pressing component 465, and the pressing piece 464 presses the pressing piece 461 under the action of the first spring 463, so that the rotating tube 15 is fixed in the fixed circular tube 45.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an artificial wetland water level automatically regulated system, is including dividing equalizing basin (11) and catch basin (12) of locating artificial wetland pond (1) both sides, running through collector pipe (13) and the vertical wetland outlet pipe (14) that set up in artificial wetland pond (1) outer peripheral face, its characterized in that: the water level controller also comprises a rotating pipe (15) which is rotationally connected with the water collecting pipe (13) and a water level adjusting pipe (16) which is fixed on the inner circumferential surface of the rotating pipe (15); a sealing mechanism (2) used for sealing the joint of the water collecting pipe (13) and the rotating pipe (15) is arranged between the rotating pipe (15) and the water collecting pipe (13);

a driving device (3) for driving the water level adjusting pipe (16) to rotate is arranged between the rotating pipe (15) and the adjusting tank (11), and the driving device (3) comprises a first motor (31) fixed at the top of the adjusting tank (11), a driving sprocket (32) fixed on the outer peripheral surface of the output end of the first motor (31), a driven sprocket (33) fixed on one side of the rotating pipe (15) close to the artificial wetland tank (1), and a chain (34) for enabling the driving sprocket (32) and the driven sprocket (33) to be linked; and a fixing device (4) for fixing the orientation of the water level adjusting pipe (16) is arranged between the rotating pipe (15) and the adjusting tank (11).

2. The constructed wetland water level automatic regulating system according to claim 1, characterized in that: the fixing device (4) comprises a second motor (41) and two clamping plates (42) which are fixed on one side, far away from the artificial wetland pool (1), of the adjusting pool (11), a first connecting rod (43) which is rotatably installed on the opposite inner sides of the two clamping plates (42), a second connecting rod (44) which is hinged with one end, far away from the second motor (41), of the first connecting rod (43), a fixed circular tube (45) which is arranged on the outer peripheral surface of the rotating tube (15) in an axial sliding mode along a driven chain wheel (33), and a clamping mechanism (46) which is arranged between the fixed circular tube (45) and the rotating tube (15) and used for clamping the rotating tube (15); a square protrusion (451) is fixed on the outer peripheral surface of the fixed round tube (45), and the square protrusion (451) is hinged with the end part of the second connecting rod (44);

the output end of the second motor (41) is fixedly connected with the end part of the first connecting rod (43).

3. The constructed wetland water level automatic regulating system according to claim 2, characterized in that: the clamping mechanism (46) comprises a pressing part (461) fixed on the outer peripheral surface of the rotating pipe (15), two sinking grooves (462) oppositely arranged on one side of the fixed circular pipe (45) close to the artificial wetland pool (1), two first springs (463) respectively fixed on the opposite inner sides of the two sinking grooves (462) and two pressing parts (464) respectively arranged in the two sinking grooves (462) in a sliding manner along the radial direction of the fixed circular pipe (45);

one ends of the two first springs (463) close to the rotating pipe (15) are respectively fixedly connected with one side of the pressing piece (464) far away from the rotating pipe (15);

a pressing component (465) used for pushing the pressing piece (464) to move towards one side far away from the rotating pipe (15) is respectively arranged between the pressing piece (461) and each pressing piece (464);

and a limiting assembly (466) for preventing the pressing piece (464) from being separated from the sinking groove (462) is correspondingly arranged between the two pressing pieces (464) and the sinking grooves (462).

4. The constructed wetland water level automatic regulating system according to claim 3, characterized in that: the limiting assembly (466) comprises a circular groove (4661) arranged at the bottom of the sinking groove (462), a limiting circular ring (4662) fixed on the inner circumferential surface of the circular groove (4661), a limiting circular sheet (4663) arranged in the circular groove (4661) in a sliding manner along the radial direction of a fixed circular tube (45) and a connecting shaft (4664) fixed on one side, close to the rotating tube (15), of the limiting circular sheet (4663);

one end of the connecting shaft (4664) close to the rotating pipe (15) is fixedly connected with one side of the pressing piece (464) far away from the rotating pipe (15).

5. The constructed wetland water level automatic regulating system according to claim 3, characterized in that: the pressing component (465) comprises two inclined surfaces (4651) which are respectively arranged on the opposite inner sides of the pressing part (461) and the pressing part (464).

6. The constructed wetland water level automatic regulating system according to claim 2, characterized in that: fixed pipe (45) are close to second motor (41) one side and are fixed with and are used for preventing that rotating tube (15) pass fender ring (467) of fixed pipe (45), keep off and be provided with between ring (467) and rotating tube (15) and be used for carrying out absorbing damper (468) to rotating tube (15).

7. The constructed wetland water level automatic regulating system according to claim 6, characterized in that: the shock absorption assembly (468) comprises a second spring (4681) fixed on one side of the stop ring (467) close to the rotating pipe (15) and a shock absorption plate (4682) fixed on one end, far away from the stop ring (467), of the second spring (4681).

8. The constructed wetland water level automatic regulating system according to claim 1, characterized in that: the sealing mechanism (2) comprises an annular groove (21) arranged on the outer peripheral surface of the water collecting pipe (13) and a sealing strip (22) which is fixed on the outer peripheral surface of the rotating pipe (15) and is used for being spliced with the annular groove (21).