CN219992668U - Municipal works road blowdown well structure - Google Patents

Abstract

The utility model provides a municipal engineering road sewage drain well structure, and relates to the field of pipeline sewage drain technologies. It comprises the following steps: the device comprises a well pipe, a rotary filter screen assembly, a turnover driving assembly and a waste collection box; the rotary filter screen component comprises a filter screen and a rotary shaft, two ends of the rotary shaft are connected with the inner wall of the well pipe, and the filter screen is hinged with the rotary shaft; the turnover driving assembly comprises a water collecting unit and a buoyancy unit, the buoyancy unit comprises a water containing tank, a buoyancy block and a connecting rod, the water collecting unit is configured to collect water in the well pipe, water is supplied to the water containing tank through a siphon pipe when the water in the water collecting unit reaches the water supply volume, the buoyancy block is arranged in the water containing tank and connected with the connecting rod, the connecting rod is also connected with a filter screen, and when the filter screen is turned over, accumulated matters on the filter screen can be discharged into a waste collecting tank; the header tank is configured to drain water when reaching a drain volume, and the water supply volume is greater than the drain volume. The utility model has the effect that the filter screen can maintain the overturning state for a long time, so that the accumulated matters on the filter screen are easy to be discharged into the waste collection box.

Description

Municipal works road blowdown well structure

Technical Field

The utility model relates to the field of pollution discharge technology, in particular to a municipal engineering road pollution discharge well structure.

Background

The municipal road sewage drain is a channel for the accumulated water on the road surface to enter the drainage pipeline. Some foreign matters (such as leaves and mud ash) exist in the accumulated water, and a wellhead or a drainage pipeline is blocked, so that the foreign matters need to be treated.

At present, a common practice of the municipal road sewage well is to arrange a filtering device (such as a filter screen) inside the well to separate foreign matters from accumulated water. And a part of the sewage well is internally provided with a part of area for storing the separated foreign matters.

The Chinese patent with the publication number of CN218911702U discloses a municipal sewage well, sewage and household garbage are left to fall onto a filter screen through a well pipe, garbage is filtered, water flows downwards to enter the inner side of a sewer, when the garbage is filtered to a certain extent, water flow can be blocked, then buoyancy can be generated on a floating block after the water flow is piled up, the floating block rises to enable a filter screen to incline to change the water flow direction, the water flow and piled up garbage are flushed into a waste collection box along the filter screen, then the sewage is discharged into the sewer through a sewage drain pipe after being filtered through a material collecting frame, the household garbage is stored in the waste collection box, after the water flow is discharged, the filter screen is automatically aligned due to time eccentricity, however, after the floating block rises to drive the filter screen to overturn, the water accumulation is extremely reduced in buoyancy of the floating block due to water loss, that is restored to an initial state in a very short time after the filter screen is overturned, effective overturn cannot be carried out, and the piled up on the filter screen is difficult to fall into the waste collection box.

Disclosure of Invention

In order to solve the problem that the overturning time of the filter screen is too short and the accumulation on the filter screen is not easy to enter the waste collection box, the utility model provides a sewage well structure capable of controlling the overturning time of the filter screen.

The utility model provides a municipal engineering road sewage drain well structure, which adopts the following technical scheme: a municipal works road blowdown well structure includes well pipe, rotation filter screen subassembly, upset drive assembly and collection useless case. The rotary filter screen component comprises a filter screen and a rotating shaft, wherein two ends of the rotating shaft are connected with the inner wall of the well pipe, and the filter screen is hinged with the rotating shaft. The turnover driving assembly comprises a water collecting unit and a buoyancy unit, the buoyancy unit comprises a water containing tank, a buoyancy block and a connecting rod, the water collecting unit is configured to collect water in the well pipe and supply water to the water containing tank when the water in the water collecting unit reaches the water supply volume, the buoyancy block is arranged in the water containing tank and connected with the connecting rod, the connecting rod is also connected with a filter screen, and when the filter screen is turned over, accumulated matters on the filter screen can be discharged into the waste collecting tank; the water holding tank is configured to drain water when a drain volume is reached and the water supply volume is greater than the drain volume.

By adopting the technical scheme, the well pipe, the rotary filter screen assembly, the overturning driving assembly and the waste collecting box are arranged, in the use process, sundries such as fallen leaves and the like flow into the well pipe through the well cover under the drive of water flow, and the filter screen in the well pipe can separate the sundries from water, so that the sundries are accumulated on the filter screen; the filter screen will be blocked after sundries on the filter screen are accumulated to a certain extent, accumulated water is caused to appear on the part above the filter screen inside the well pipe, when accumulated water reaches a certain amount, the water collecting unit in the overturning driving assembly can collect accumulated water in the well pipe and supply water to the water containing tank in the buoyancy unit when a set water supply volume is collected, so that the buoyancy block in the water containing tank floats upwards, the connecting rod can be pushed to drive the filter screen to overturn, and sundries accumulated on the filter screen can be discharged into the waste collecting tank along the inclined filter screen.

Specifically, the water collecting unit comprises a water collecting tank and a water supply siphon pipe, the water supply siphon pipe is a U-shaped pipe, the water supply siphon pipe comprises a water supply water absorbing section arranged at one end of the water supply siphon pipe bending part and a water supply water outlet section arranged at the other end of the water supply siphon pipe bending part, the water supply siphon pipe bending part and the water supply water absorbing section are both arranged in the water collecting tank, a water inlet arranged at the end part of the water supply water absorbing section is positioned between the bending part and the bottom wall of the water collecting tank, and the water supply water outlet section extends out of the water collecting tank and extends into the water containing tank.

Through adopting above-mentioned technical scheme, when the water level is higher than water supply siphon kink in the header tank, rivers pass through water supply siphon kink, fall along water supply play water section gravity, and then produce the siphon phenomenon, inhale the water that reaches the water supply volume in the header tank into the flourishing water tank.

Further, the water collection tank is arranged on the side wall of the well pipe and is positioned above the filter screen. The water collecting tank is provided with a water inlet which is provided with a first garbage filter screen; the vertical height of the water inlet is higher than that of the bending part of the water supply siphon pipe.

By adopting the technical scheme, when the accumulated water in the well pipe flows into the water collecting tank through the water inlet, the first garbage filter screen can effectively prevent sundries contained in the accumulated water from entering the water collecting tank to block the water supply siphon; the vertical height of the water inlet is set to be higher than the vertical height of the water supply siphon bending part, so that the water level in the water collecting tank can be higher than the water supply siphon bending part, the siphoning phenomenon can be realized, and the water collecting tank can supply water to the water containing tank.

Further, a water baffle is arranged between the water containing tank and the filter screen, a through hole and a chute are arranged on the water baffle, the water supply siphon pipe penetrates through the through hole to be inserted into the water containing tank, and the connecting rod penetrates through the chute.

By adopting the technical scheme, when sewage flows down along the filter screen, the sewage is blocked by the water baffle and cannot fall into the water containing tank; the water baffle can not obstruct the water supply of the water supply siphon pipe and the movement of the connecting rod.

Specifically, the bottom of the water containing tank is provided with a drainage siphon which is a U-shaped pipe, the drainage siphon comprises a drainage siphon bending part, a drainage water absorbing section arranged at one end of the drainage siphon bending part and a drainage water discharging section arranged at the other end of the drainage siphon bending part, the drainage siphon bending part and the drainage water absorbing section are arranged in the water containing tank, a water inlet arranged at the end part of the drainage siphon is positioned between the drainage siphon bending part and the bottom wall of the water containing tank, and the drainage water discharging section extends out of the water containing tank and extends into a well pipe.

Through adopting above-mentioned technical scheme, when the water level is higher than drainage siphon kink in the water holding tank, rivers pass through drainage siphon kink, follow drainage play water section gravity whereabouts, and then produce the siphon phenomenon, will hold in the water holding tank reach the water drainage volume and discharge into the well pipe in.

Further, the bottom of the buoyancy block is provided with supporting legs so as to form a water containing and water passing space between the buoyancy block and the bottom wall of the water containing tank.

By adopting the technical scheme, the problem that the buoyancy block cannot float due to lack of upward buoyancy caused by the fact that the buoyancy block clings to the bottom wall of the water containing tank is avoided.

Further, a waste collection box water outlet is formed in the lower portion of the waste collection box, the waste collection box is communicated with the well pipe through the waste collection box water outlet, and a second garbage filter screen is arranged at the waste collection box water outlet.

By adopting the technical scheme, the sewage and the piled matters discharged into the waste collection box are separated under the action of the second garbage filter screen, the separated sewage is discharged into the well pipe through the water outlet of the waste collection box, and impurities are left in the waste collection box.

Further, a decontamination pipeline leading to the ground surface is arranged on the waste collection box.

Through adopting above-mentioned technical scheme, can follow the decontamination pipeline of earth's surface conveniently and take out debris in the collection useless case to the earth's surface, avoided loaded down with trivial details dismantlement cleaning method.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. arranging a well pipe, a rotary filter screen assembly, a turnover driving assembly and a waste collection box, wherein in the use process, sundries such as fallen leaves flow into the well pipe through a well cover under the drive of water flow, and the filter screen in the well pipe can separate the sundries from water so that the sundries are accumulated on the filter screen; the filter screen will be blocked after sundries on the filter screen are accumulated to a certain extent, accumulated water is caused to appear on the part above the filter screen inside the well pipe, when accumulated water reaches a certain amount, the water collecting unit in the overturning driving assembly can collect accumulated water in the well pipe and supply water to the water containing tank in the buoyancy unit when a set water supply volume is collected, so that the buoyancy block in the water containing tank floats upwards, the connecting rod can be pushed to drive the filter screen to overturn, and sundries accumulated on the filter screen can be discharged into the waste collecting tank along the inclined filter screen.

2. Because the drainage volume that the water holding tank set for is less than the water supply volume that the supply tank set for, consequently can guarantee that buoyancy piece can float at certain height in certain time for the filter screen keeps the time of upset state longer, thereby can prevent that the accumulational debris on the filter screen from being difficult for getting into the condition in the collection useless case because of the filter screen upset is long too short, and then increased the blowdown efficiency of this equipment.

Drawings

Fig. 1 is a perspective view of a construction of a municipal works road trapway of the utility model.

Fig. 2 is a top view of the construction of the municipal works road trapway of the utility model.

Fig. 3 is a schematic cross-sectional view taken along section line A-A in fig. 2.

Fig. 4 is a schematic partial enlarged view of region C in fig. 3, in which a buoyancy unit is shown.

Fig. 5 is a schematic partial enlarged view of a region B in fig. 3, in which a water collecting unit is shown.

Fig. 6 is a schematic cross-sectional view taken along section line D-D in fig. 4.

Reference numerals: 1. a well pipe; 2. rotating the screen assembly; 21. a filter screen; 22. a rotating shaft; 3. a flip drive assembly; 31. a water collecting unit; 311. a water collection tank; 3111. a water inlet; 3112. a first garbage screen; 312. a water supply siphon; 3121. a water supply siphon pipe bending part; 3122. a water supply and absorption section; 3123. a water supply and water outlet section; 32. a buoyancy unit; 321. a water container; 322. a buoyancy block; 3221. support legs; 323. a connecting rod; 324. a drain siphon; 3241. a bent part of the drainage siphon pipe; 3242. a water draining and absorbing section; 3243. a water draining and discharging section; 4. a waste collection box; 41. a water outlet of the waste collection box; 42. a second garbage filter screen; 43. a decontamination duct; 5. a water baffle; 51. and a sliding groove.

Detailed Description

FIG. 1 is a perspective view of a municipal works road trapway structure of the utility model; fig. 2 is a top view of the construction of the municipal works road trapway of the utility model. Referring to fig. 1 and 2, a municipal works road sewage well structure, comprising: well pipe 1, rotary screen subassembly 2, upset drive assembly 3 and collection waste container 4. Fig. 3 is a schematic cross-sectional view taken along section line A-A in fig. 2, fig. 4 is a schematic enlarged partial view of region C in fig. 3, in which a buoyancy unit is shown, see fig. 3 and 4, the rotary screen assembly 2 comprises a screen 21 and a rotary shaft 22, both ends of the rotary shaft 22 being connected to the inner wall of the well pipe 1, the screen 21 being hinged to the rotary shaft 22. The tilting drive assembly 3 comprises a water collecting unit 31 and a buoyancy unit 32, wherein the buoyancy unit 32 comprises a water tank 321, a buoyancy block 322 and a connecting rod 323, the water collecting unit 31 is capable of collecting accumulated water in the well pipe 1 and supplying water to the water tank 321 when the water collecting unit 31 collects water to reach a water supply volume.

The buoyancy block 322 is disposed in the water container 321 and connected with the connecting rod 323, the connecting rod 323 is further connected with the filter screen 21, the rotating shaft 22 is disposed in the middle of the filter screen 21, and in an initial state, the filter screen 21 can be balanced under the gravity of the buoyancy block 322, and when the bottom of the buoyancy block 322 is in contact with the bottom wall of the water container 321, the filter screen 21 should be in a horizontal state. When the water collecting unit 31 supplies water to the water containing tank 321, the buoyancy block 322 floats upwards and pushes the connecting rod 323 to move upwards so as to drive the filter screen 21 to turn over, so that the accumulated matters on the filter screen 21 can be discharged into the waste collecting tank 4 along with accumulated water.

It should be noted that, when the water containing tank 321 is configured to drain water when reaching the drainage volume, the water supply volume set by the water collecting unit 31 should be greater than the drainage volume set by the water containing tank 321, so that when the water containing tank 321 drains water, the water collecting unit 31 can still supply water to the water containing tank 321 continuously, so that the buoyancy block 322 can be kept in a floating state for a longer time, the filter screen 21 can be kept in a state of being turned and inclined for a long time, so that the sediment on the filter screen 21 can flow to the waste collecting tank 4 under the drive of accumulated water for a longer time, and thus the sediment can be conveniently discharged into the waste collecting tank 4.

Fig. 5 is a schematic partial enlarged view of a region B in fig. 3, in which a water collecting unit is shown. Referring to fig. 4 and 5, in one embodiment, the water collecting unit 31 is provided to include a water collecting tank 311 and a water supply siphon 312. The water siphon 312 is a U-shaped pipe, and specifically includes a water siphon bend 3121, a water suction section 3122 provided at one end of the water siphon bend 3121, and a water discharge section 3123 provided at the other end of the water siphon bend 3121. The water supply siphon pipe bending part 3121 and the water supply water suction section 3122 are both provided in the water collection tank 311, and the water supply siphon pipe 312 is arranged such that a water inlet of an end of the water supply water suction section 3122 is located between the water supply siphon pipe bending part 3121 and a bottom wall of the water collection tank 311, and the water supply water outlet section 3123 extends out of the water collection tank 311 and into the water containing tank 321. When the water level in the water collection tank 311 is higher than the water supply siphon bend 3121, the water in the water collection tank 311 reaches the water supply volume, and the water flow will fall by gravity along the water supply outlet 3123 through the water supply siphon bend 3121, thereby generating siphoning phenomenon, and sucking the water in the water collection tank 311 into the water container 321.

Referring to fig. 5, in one embodiment, the water collection unit 31 is arranged to comprise a water collection tank 311 provided on a side wall of the well pipe 1 above the screen 21. The water collection tank 311 is provided with a water inlet 3111, and a first garbage filter 3112 is arranged at the water inlet 3111. When the accumulated water in the well pipe 1 flows into the water collecting tank 311 through the water inlet 3111, the first garbage screen 3112 can effectively prevent impurities contained in the accumulated water from entering the water collecting tank 311 to block the water supply siphon 312. It should be noted that the vertical height of the water inlet 3111 should be set to be higher than the vertical height of the water supply siphon bent portion 3121 so that the water level in the water collection tank 311 can be higher than the water supply siphon bent portion 3121, thereby enabling the water supply siphon 312 to siphon water, and realizing the water supply of the water collection tank 311 to the water containing tank 321.

Referring to fig. 4, in one embodiment, a water baffle 5 is provided between the water tank 321 and the filter screen 21, a through hole and a chute 51 are provided on the water baffle 5, a water supply siphon tube 312 is inserted into the water tank 321 through the through hole, and a connecting rod 323 is provided through the chute 51. When sewage flows down along the filter screen 21, it is blocked by the water baffle 5 not to fall into the water container 321, and the chute 51 is provided so that the water baffle 5 does not obstruct the movement of the link 323.

Fig. 6 is a schematic cross-sectional view taken along section line D-D in fig. 4. Referring to fig. 4 and 6, in one embodiment, a drain siphon pipe 324 is disposed at the bottom of the water tank 321, the drain siphon pipe 324 is a U-shaped pipe, and the drain siphon pipe 324 specifically includes a drain siphon pipe bending portion 3241, a drain water absorbing section 3242 disposed at one end of the drain siphon pipe bending portion 3241, and a drain water discharging section 3243 disposed at the other end of the drain siphon pipe bending portion 3241. The drain siphon bend 3241 and the drain suction section 3242 are both arranged inside the water tank 321, and the drain siphon 324 is arranged such that the water inlet at the end of the drain suction section 3242 is between the drain siphon bend 3241 and the bottom wall of the water tank 321, and the drain outlet section 3243 extends out of the water tank 321 and into the well pipe 1. When the water level in the water tank 321 is higher than the water discharge siphon bend 3241, the water in the water tank 321 reaches the water discharge volume, and the water flow passes through the water discharge siphon bend 3241 and falls along the water discharge section 3243 by gravity, so that a siphon phenomenon is generated, and the water in the water tank 321 is discharged into the well pipe 1.

Referring to FIG. 4, in one embodiment, support legs 3221 are provided at the bottom of buoyancy block 322 to provide a water passage space between buoyancy block 322 and the bottom wall of water reservoir 321. Avoiding buoyancy block 322 from failing to float due to lack of upward buoyancy caused by the fact that buoyancy block 322 is clung to the bottom wall of water containing tank 321.

Referring to fig. 3, in one embodiment, the upper part of the waste collection tank 4 is provided with a waste inlet suitable for water flow and sediment to pass through, the lower part of the waste collection tank 4 is also provided with a waste collection tank water outlet 41, the waste collection tank 4 is communicated with the well pipe 1 through the waste collection tank water outlet 41, and a second waste filter screen 42 is arranged at the waste collection tank water outlet 41. The sewage and the sediment discharged into the waste collection tank are separated by the second garbage filter 42, the separated sewage is discharged into the well pipe 1 through the waste collection tank water outlet 41, and the impurities are left in the waste collection tank 4.

Referring to fig. 3, in one embodiment, the waste bin 4 is provided with a decontamination duct 43 leading to the surface. The cleaning personnel can directly use the negative pressure pump to be connected with the port of the decontamination pipeline 43, which extends out of the ground surface, so that sundries in the waste collection box 4 can be pumped to the ground surface, and the cleaning mode is simpler and more convenient.

The working process of the municipal engineering road sewage drain well structure in use is specifically as follows:

in the use process, sundries such as fallen leaves and the like flow into the well pipe 1 through the well cover under the drive of water flow, and the filter screen 21 in the well pipe 1 can separate the sundries from water, so that the sundries are accumulated on the filter screen 21; when sundries on the filter screen 21 are accumulated to a certain extent, the filter screen 21 is blocked, so that accumulated water is generated in a part above the filter screen 21 in the well pipe 1, and when the accumulated water reaches a certain amount, the accumulated water in the well pipe enters the water collecting tank 311 through the water inlet 3111, and the accumulated water is separated from the sundries under the action of the first garbage filter screen 3112. When the water level in the water collection tank 311 is higher than the water supply siphon pipe bending part 3121, a siphon phenomenon is induced, and unilateral water supply of the water collection tank 311 to the water containing tank 321 is achieved. Other water leaking along the gaps of the filter screen 21 will be blocked by the water baffle 5 and cannot enter the water containing tank 321.

When the water supply from the drain siphon pipe 324 flows into the water containing tank 321, the water flows into the water passing space formed between the buoyancy block 322 and the bottom wall of the water containing tank 321 by the bottom supporting leg 3221 of the buoyancy block 322, the buoyancy block 322 in the water containing tank 321 is pushed to float upwards, and the connecting rod 323 is further pushed to drive the filter screen 21 to turn over, so that sundries accumulated on the filter screen 21 can be discharged into the waste collecting tank 4 along with the water accumulating along the inclined filter screen 21. When the water level in the water container 321 reaches the drainage volume, which is higher than the drainage siphon bend 3241, the water flows through the drainage siphon bend 3241 and falls along the drainage outlet 3243 by gravity, thus generating siphoning phenomenon, and sucking the water reaching the drainage volume in the water container 321 into the well pipe 1.

At this time, since the water supply volume set by the water collecting unit 31 is greater than the water discharge volume set by the water containing tank 321, the water level in the water containing tank 321 can be maintained stable until the water collecting unit 31 stops supplying water. Thus, the buoyancy block 322 is not dropped by the water level drop, so that the filter screen 21 can be maintained in a state of being turned upside down for a long time, so that the accumulation on the filter screen 21 is discharged into the waste collection tank 4 along with the water flow, and the filter screen 21 can be restored to an original horizontal state when all water in the water storage tank 321 is discharged into the well pipe.

On the other hand, the sewage and the sediment discharged into the waste collection tank are separated by the second garbage screen 42, and the separated sewage is discharged into the well pipe 1 through the waste collection tank water outlet 41, and the impurities are left in the waste collection tank 4.

After a period of time, cleaning staff can directly use tools such as a negative pressure pump to pump sundries in the waste collection box 4 to the ground surface from the dirt removal pipeline 43 on the ground surface, and the cleaning mode is simpler and more convenient.

It is noted that relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (8)

1. A municipal works road drain well structure, characterized in that includes: the device comprises a well pipe (1), a rotary filter screen assembly (2), a turnover driving assembly (3) and a waste collection box (4); the rotary filter screen assembly (2) comprises a filter screen (21) and a rotating shaft (22), two ends of the rotating shaft (22) are connected with the inner wall of the well pipe (1), and the filter screen (21) is hinged with the rotating shaft (22); the turnover driving assembly (3) comprises a water collecting unit (31) and a buoyancy unit (32), the buoyancy unit (32) comprises a water containing tank (321), a buoyancy block (322) and a connecting rod (323), the water collecting unit (31) is configured to collect water in the well pipe (1) and supply water to the water containing tank (321) when the water in the water collecting unit (31) reaches a water supply volume, the buoyancy block (322) is arranged in the water containing tank (321) and is connected with the connecting rod (323), the connecting rod (323) is also connected with the filter screen (21), and when the filter screen (21) is turned, a deposit on the filter screen (21) can be discharged into the waste collecting tank (4); the water holding tank (321) is configured to drain water when reaching a drain volume, and the water supply volume is greater than the drain volume.

2. The municipal works road trapway structure according to claim 1, wherein: the water collecting unit (31) comprises a water collecting tank (311) and a water supply siphon (312), the water supply siphon (312) is a U-shaped pipe, the water supply siphon (312) comprises a water supply siphon bending part (3121) and a water supply water suction section (3122) arranged at one end of the water supply siphon bending part (3121) and a water supply water outlet section (3123) arranged at the other end of the water supply siphon bending part (3121), the water supply siphon bending part (3121) and the water supply water suction section (3122) are arranged in the water collecting tank (311), a water inlet arranged at the end part of the water supply water suction section (3122) is positioned between the water supply siphon bending part (3121) and the bottom wall of the water collecting tank (311), and the water supply water outlet section (3123) extends out of the water collecting tank (311) and extends into the water holding tank (321).

3. The municipal works road trapway structure according to claim 2, wherein: the water collecting tank (311) is arranged on the side wall of the well pipe (1), the water collecting tank (311) is arranged above the filter screen (21), the water collecting tank (311) is provided with a water inlet (3111), and the water inlet (3111) is provided with a first garbage filter screen (3112); the vertical height of the water inlet (3111) is higher than the vertical height of the water supply siphon bend (3121).

4. The municipal works road trapway structure according to claim 2, wherein: be equipped with breakwater (5) between flourishing water tank (321) with filter screen (21), be equipped with through-hole and spout (51) on breakwater (5), water supply siphon (312) pass the through-hole is in order to insert flourishing water tank (321), connecting rod (323) are worn to locate in spout (51).

5. The municipal works road drain well structure according to any one of claims 1 to 4, wherein: the water containing tank (321) bottom is equipped with drainage siphon (324), drainage siphon (324) are U type pipe, drainage siphon (324) are including drainage siphon kink (3241) and locate drainage water-absorbing section (3242) of one end of drainage siphon kink (3241) and locate drainage water-emitting section (3243) of the other end of drainage siphon kink (3241), drainage siphon kink (3241) with drainage water-absorbing section (3242) all are located in water containing tank (321), just drainage siphon (324) are arranged as the water inlet of the tip of drainage water-absorbing section (3242) is in between drainage siphon kink (3241) and the diapire of water containing tank (321), drainage water-emitting section (3243) stretch out in water containing tank (321) and extend to in well pipe (1).

6. The municipal works road trapway structure according to claim 5, wherein: the bottom of the buoyancy block (322) is provided with supporting legs (3221) so as to form a water through space between the buoyancy block (322) and the bottom wall of the water containing tank (321).

7. The municipal works road trapway structure according to claim 1, wherein: the lower part of the waste collection box (4) is provided with a waste collection box water outlet (41), the waste collection box (4) is communicated with the well pipe (1) through the waste collection box water outlet (41), and a second garbage filter screen (42) is arranged at the waste collection box water outlet (41).

8. The municipal works road trapway structure according to claim 7, wherein: the waste collection box (4) is provided with a decontamination pipeline (43) leading to the ground surface.