CN113235719B

CN113235719B - Municipal drainage system

Info

Publication number: CN113235719B
Application number: CN202110659546.8A
Authority: CN
Inventors: 游彬; 游利萍; 何子星; 黄少强
Original assignee: Guangdong Haosheng Construction Engineering Co ltd
Current assignee: Guangdong Haosheng Construction Engineering Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2022-08-23
Anticipated expiration: 2041-06-15
Also published as: CN113235719A

Abstract

The application relates to a municipal drainage system, which relates to the technical field of municipal drainage equipment and comprises a drainage well vertically arranged underground, an inspection well cover arranged at the well mouth of the drainage well and a purification box arranged in the drainage well, wherein the top and the bottom of the purification box are both open, the top opening of the purification box is communicated with the well mouth of the drainage well, a conical cylinder which is arranged in an inverted manner is arranged in the purification box, and the side wall of the conical cylinder is provided with a plurality of filtering holes for filtering accumulated water; install in the circular cone section of thick bamboo and carry out the clearance subassembly of clearing up to filtering the hole, the clearance subassembly is including rotating the axis of rotation of connecting in circular cone section of thick bamboo diapire, the axis of rotation and the axis coincidence of circular cone section of thick bamboo, the bottom of axis of rotation extends to the below and the rigid coupling of circular cone section of thick bamboo and has a plurality of helical blade, the top of axis of rotation extends to in the circular cone section of thick bamboo and the rigid coupling has the cleaning brush that a plurality of slopes set up, the brush hair of every cleaning brush supports tightly with the inside wall of circular cone section of thick bamboo. This application has the effect of being convenient for discharge the ponding on road surface fast.

Description

Municipal drainage system

Technical Field

The application relates to the technical field of municipal drainage equipment, in particular to a municipal drainage system.

Background

At present, a municipal drainage system is a system for discharging and cleaning rainwater, domestic sewage and industrial wastewater, and is widely used in the work of municipal construction.

In the rainy day, because be mingled with debris such as a large amount of leaves and silt in the ponding on road surface, debris mix get into the underground piping through the drainage shaft in the ponding after, pile up in the underground piping easily to reduce underground piping's drainage ability, cause the underground piping to take place the condition of blockking up even, and then probably appear the ponding on the road and be difficult to the circumstances of in time discharging.

Disclosure of Invention

In order to facilitate discharging the ponding on road surface fast, this application provides a municipal drainage system.

The application provides a municipal drainage system adopts following technical scheme:

a municipal drainage system comprises a drainage well vertically arranged underground, an inspection well cover arranged at the well mouth of the drainage well and a purification box arranged in the drainage well, wherein the top and the bottom of the purification box are both open, the top opening of the purification box is communicated with the well mouth of the drainage well, a conical cylinder which is arranged in an inverted manner is arranged in the purification box, and the side wall of the conical cylinder is provided with a plurality of filtering holes for filtering accumulated water; install in the circular cone section of thick bamboo and carry out the clearance subassembly of clearing up to filtering the hole, the clearance subassembly is including rotating the axis of rotation of connecting in circular cone section of thick bamboo diapire, the axis of axis and the coincidence of the axis of circular cone section of thick bamboo, the bottom of axis of rotation extends to the below of circular cone section of thick bamboo and the rigid coupling has a plurality of helical blade, the top of axis of rotation extends to in the circular cone section of thick bamboo and the rigid coupling has the cleaning brush of a plurality of slopes settings, every the brush hair of cleaning brush supports tightly with the inside wall of circular cone section of thick bamboo.

By adopting the technical scheme, after the accumulated water on the road surface flows into the drainage well, the accumulated water firstly falls into the inner side wall of the conical cylinder, then the accumulated water is filtered by the filter hole, impurities mixed in the accumulated water are filtered and then are left in the conical cylinder, the filtered accumulated water impacts the spiral blade after penetrating through the filter hole, so that the spiral blade is driven to rotate, the spiral blade rotates to drive the rotating shaft to rotate, the rotating shaft rotates to drive the cleaning brush to rotate, the cleaning brush rotates to clean the filter hole, the blocked filter hole is convenient to dredge, the probability that the accumulated water cannot continuously flow after the filter hole is blocked by the impurities is reduced, and the accumulated water on the road surface is convenient to quickly discharge; the spiral blade is impacted to rotate by utilizing the gravitational potential energy of accumulated water, so that the energy is saved and the environment is protected.

Preferably, a funnel body which is coaxial with the conical barrel is arranged in the purification box and is positioned below the conical barrel, the spiral blade is positioned right below a water outlet of the funnel body, a plurality of spiral grooves which are circumferentially arranged at intervals are formed in the inner side wall of the funnel body, and the water outlet of each spiral groove faces the upper surface of each spiral blade and is communicated with the water outlet of the funnel body.

Through adopting above-mentioned technical scheme, fall into the helicla flute after ponding sees through the filtration pore in, the helicla flute leads ponding to be convenient for ponding slope downflow, helical blade receives behind the decurrent effort of ponding slope, takes place to rotate more easily.

Preferably, the diapire of inspection shaft lid is connected with the haulage rope, the other end of haulage rope is connected in the inside wall of purifying box, the outside wall of purifying box just can slide relatively with the inside wall butt of drainage well.

Through adopting above-mentioned technical scheme, the setting of haulage rope is convenient for make the purifying box hang in the drain well, when needs clear up the debris in the circular cone section of thick bamboo, operating personnel accessible is carried the mode of pulling the haulage rope and is taken out the purifying box from the drain well, and then is convenient for clear up debris.

Preferably, the cross sections of the drainage well and the purification box are rectangular, each side wall of the purification box is provided with an impurity cleaning component for cleaning the inner side wall of the drainage well, each impurity cleaning component comprises a driving shaft which is horizontally arranged and rotationally connected to the bottom wall of the purification box, a transmission shaft which is vertically arranged and rotationally connected to the side wall of the purification box and a driven shaft which is horizontally arranged and rotationally connected to the top wall of the purification box, a driving bevel gear is sleeved and fixed at the middle part of the driving shaft, a first transmission bevel gear is fixedly connected to the bottom end of the transmission shaft, the driving bevel gear is meshed with the first transmission bevel gear, a second transmission bevel gear is fixedly connected to the top end of the transmission shaft, a driven bevel gear is sleeved and fixed at the middle part of the driven shaft, the second transmission bevel gear is meshed with the driven bevel gear, and rotating rollers are fixedly connected to both ends of the driving shaft, the lateral wall of live-rollers supports tightly with the inside wall of drainage well, the equal rigid coupling in both ends of driven shaft has row's brush, the brush hair of row's brush supports tightly with the inside wall of drainage well.

By adopting the technical scheme, in the process that an operator pulls the purifying box through the traction rope, the rotating roller is rotated by the friction force of the inner side wall of the drainage well, the rotating roller rotates to drive the driving shaft to rotate, the driving shaft rotates to drive the driving bevel gear to rotate, the driving bevel gear rotates to drive the first transmission bevel gear to rotate, the first transmission bevel gear rotates to drive the transmission shaft to rotate, the transmission shaft rotates to drive the second transmission bevel gear to rotate, the second transmission bevel gear rotates to drive the driven shaft to rotate, the driven shaft rotates to drive the row brush to rotate, and the brush bristles of the row brush can clean the inner side wall of the drainage well in the rotating process; the four groups of impurity removing assemblies work simultaneously, so that the inner peripheral side wall of the drainage well is convenient to clean.

Preferably, the roof of purifying box still is provided with the scraper, the blade of scraper supports tightly with the inside wall of drainage well, just the driven shaft is located the top of scraper.

Through adopting above-mentioned technical scheme, at the in-process that the purifying box rises, the blade of scraper is convenient for scrape the stubborn filth that bonds at the drainage well inside wall down.

Preferably, the below rigid coupling of purifying box has the counter weight frame, the spacing groove has been seted up to the lateral wall of counter weight frame, the spout has been seted up to the position that the inside wall of drainage well corresponds the spacing groove, be provided with spacing subassembly in the spout, spacing subassembly includes that stopper and rigid coupling that slide in the spout along the horizontal direction are close to the spacing spring of the inside one end of spout in the stopper, the other end rigid coupling of spacing spring is in the tank bottom of spacing groove, the one end that the stopper is close to the spacing groove sets to the coniform of pegging graft complex with the spacing groove.

By adopting the technical scheme, when the purification box moves downwards under the action of self gravity and gravity of the weight frame, the outer side wall of the weight frame extrudes the conical end part of the limiting block, so that the limiting block is pushed into the sliding groove, the limiting spring is in a compressed state at the moment, when the limiting groove moves to be communicated with the sliding groove, the limiting block moves towards the direction close to the limiting groove under the action of the limiting spring until the conical end part of the limiting block is inserted into the limiting groove, so that the weight frame is limited, the weight frame is prevented from continuously moving downwards, and the purification box and the weight frame are fixed in the drainage well; it should be noted that, at this moment, the conical end of the limiting block is not completely inserted into the limiting groove, and the traction rope is in a tensioning state, and when the limiting block is required to be separated from the limiting groove, an operator only needs to lift the traction rope upwards through a tool.

Preferably, the one end of inspection shaft lid articulates in one side of pumping shaft well head, the sliding tray has been seted up to the diapire of inspection shaft lid, the sliding tray extends and upwards inclines gradually to set up from the hinged end of inspection shaft lid to the expansion end, the sliding tray internal slipping is connected with the metal ball, the top and the metal ball fixed connection of haulage rope, the tank bottom rigid coupling of sliding tray highest position has the magnetic block that attracts the metal ball.

Through adopting above-mentioned technical scheme, when the inspection shaft lid is in the closed condition, the metal ball adsorbs on the magnetic block, and the haulage rope is in the tensioning state, makes its in-process of opening gradually at operating personnel pulling inspection shaft lid's expansion end, and the metal ball separates with the magnetic block earlier, follows the sliding tray and slides downwards gradually after that to alleviate the pulling force of inspection shaft lid to the haulage rope, and then be convenient for open the inspection shaft lid.

Preferably, the side wall of the limiting block is embedded with a plurality of balls, and the balls are rotationally connected to the side wall of the sliding groove.

Through adopting above-mentioned technical scheme, the setting up of ball has alleviateed the frictional force between stopper and the spout lateral wall to stability when having improved the stopper and having removed.

Preferably, a magnetic suction pipe for attracting the limiting block is fixedly inserted into the limiting groove.

Through adopting above-mentioned technical scheme, the setting of magnetism pipe is inhaled and is convenient for strengthen the joint strength between stopper and the spacing groove.

Preferably, the inside wall threaded connection of purifying box has solid fixed ring, the bottom rigid coupling of haulage rope in solid fixed ring.

Through adopting above-mentioned technical scheme, solid fixed ring detachably connects in the purifying box to be convenient for change the haulage rope.

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

1. after the accumulated water on the road surface flows into the drainage well, the accumulated water firstly falls into the inner side wall of the conical cylinder, then the accumulated water is filtered by the filter hole, impurities mixed in the accumulated water are filtered and then left in the conical cylinder, the filtered accumulated water passes through the filter hole and then impacts the spiral blade, so that the spiral blade is driven to rotate, the spiral blade rotates and drives the rotating shaft to rotate, the rotating shaft rotates and drives the cleaning brush to rotate, the cleaning brush rotates and cleans the filter hole, the blocked filter hole is convenient to dredge, the probability that the accumulated water cannot continuously flow after the filter hole is blocked by the impurities is reduced, and the accumulated water on the road surface is convenient to quickly discharge; the spiral blade is impacted to rotate by utilizing the gravitational potential energy of accumulated water, so that the energy is saved and the environment is protected;

2. when the accumulated water falls into the spiral groove after penetrating through the filter hole, the spiral groove guides the accumulated water, so that the accumulated water flows downwards in an inclined mode conveniently, and the spiral blade is more prone to rotating after being subjected to the action force of the accumulated water in the inclined mode;

3. in the process that an operator pulls the purifying box through a traction rope, the rotating roller is rotated by the friction force of the inner side wall of the drainage well, the rotating roller rotates to drive the driving shaft to rotate, the driving shaft rotates to drive the driving bevel gear to rotate, the driving bevel gear rotates to drive the first transmission bevel gear to rotate, the first transmission bevel gear rotates to drive the transmission shaft to rotate, the transmission shaft rotates to drive the second transmission bevel gear to rotate, the second transmission bevel gear rotates to drive the driven shaft to rotate, the driven shaft rotates to drive the row brush to rotate, and the brush bristles of the row brush can clean the inner side wall of the drainage well in the rotating process; the four groups of impurity removing assemblies work simultaneously, so that the inner peripheral side wall of the drainage well is convenient to clean.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a partial cross-sectional view of a well lid in an embodiment of the present application.

Fig. 3 is a schematic structural view of the purge tank and the trash removal assembly in the embodiment of the present application.

Fig. 4 is a schematic structural diagram of a limiting assembly in the embodiment of the present application.

Fig. 5 is a partial sectional view of the purge tank in the embodiment of the present application.

Description of reference numerals: 1. a drainage well; 11. a chute; 2. an inspection well cover; 21. a sliding groove; 22. water filtering holes; 23. a concealed handle; 24. an extension groove; 31. a purification box; 32. a conical cylinder; 321. a filtration pore; 33. a funnel body; 331. a helical groove; 34. a counterweight frame; 341. a limiting groove; 4. cleaning the assembly; 41. a rotating shaft; 42. a helical blade; 43. a cleaning brush; 51. a hauling rope; 52. a metal ball; 53. a magnetic block; 54. a fixing ring; 6. clearing the impurity assembly; 61. a drive shaft; 62. a drive shaft; 63. a driven shaft; 64. a drive bevel gear; 65. a first drive bevel gear; 66. a second drive bevel gear; 67. a driven bevel gear; 68. a rotating roller; 69. arranging brushes; 7. a scraper; 8. a limiting component; 81. a limiting block; 82. a limiting spring; 83. a ball bearing; 84. magnetic suction pipe.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses municipal drainage system. Referring to fig. 1, municipal drainage system includes drainage shaft 1, inspection shaft lid 2, purifying box 31 and clear miscellaneous subassembly 6, and drainage shaft 1 and purifying box 31 are the tubular structure of transversal personally submitting the rectangle, and drainage shaft 1 sets up in the underground vertically, and purifying box 31 installs in drainage shaft 1. The top and the bottom of purifying box 31 are the open setting, and the open-top of purifying box 31 and the well head intercommunication of pumping shaft 1, and purifying box 31 is used for purifying the ponding that flows into in pumping shaft 1.

Referring to fig. 1, inspection shaft lid 2 is rectangle lid structure, and inspection shaft lid 2 is installed in the well head of drainage well 1, and inspection shaft lid 2's one end articulates in one side of drainage well 1 well head. The lateral wall of inspection shaft lid 2 both sides all is provided with a plurality of drainage hole 22 to be convenient for carry out the primary filtration to the ponding on road surface. In order to open the inspection well cover 2 conveniently, the upper surface of inspection well cover 2 movable end is provided with hidden handle 23, and not only the operating personnel of being convenient for opens inspection well cover 2, does not also influence the planarization of inspection well cover 2 upper surface simultaneously. When the inspection well cover 2 is in a closed state, the upper surface of the inspection well cover 2 is flush with the top wall of the drainage well 1. The impurity removing assembly 6 is disposed in the purification box 31 so as to facilitate cleaning of the inner side wall of the drain well 1.

Referring to fig. 1 and 2, a sliding groove 21 is formed in the inspection well cover 2, the sliding groove 21 extends from the hinged end of the inspection well cover 2 to the movable end and gradually inclines upwards, the highest position of the sliding groove 21 is located in the middle of the inspection well cover 2, and the sliding groove 21 is located between the water filtering holes 22 on two sides. Extension groove 24 has been seted up to the diapire of inspection shaft lid 2, and extension groove 24 and sliding tray 21 intercommunication and syntropy extend. Be provided with haulage rope 51 between inspection shaft lid 2 and the purifying box 31, the top of haulage rope 51 is passed extension groove 24 and is extended to in the sliding tray 21 and the rigid coupling has metal ball 52, metal ball 52 slides in the sliding tray 21, four strands of ropes are set to the bottom of haulage rope 51, the other end rigid coupling of every strand of rope has solid fixed ring 54, four solid fixed ring 54 and the four inside wall one-to-one of purifying box 31, every solid fixed ring 54 threaded connection is in the inside wall that is close to the top of purifying box 31. The pulling rope 51 can slide in the extending groove 24 along the water direction, and a magnetic block 53 for attracting the metal ball 52 is fixed on the bottom wall of the highest position of the sliding groove 21.

Referring to fig. 1 and 3, the impurity removing assemblies 6 are provided in four groups, and the four groups of impurity removing assemblies 6 correspond to the four side walls of the purification box 31 one by one. Clear miscellaneous subassembly 6 of every group includes driving shaft 61, transmission shaft 62 and driven shaft 63, and driving shaft 61 level sets up and rotates through the bearing frame and connect in the diapire of purifying box 31, and the vertical setting of transmission shaft 62, transmission shaft 62 run through the lateral wall of purifying box 31 and rotate through the lateral wall of bearing and purifying box 31 and be connected. The driven shaft 63 is horizontally disposed, and the driven shaft 63 is rotatably connected to the top wall of the purification box 31 through a bearing housing. A driving bevel gear 64 is fixedly sleeved on the middle portion of the driving shaft 61, a first transmission bevel gear 65 is fixedly connected to the bottom end of the driven shaft 63, and the driving bevel gear 64 is meshed with the first transmission bevel gear 65. The top end of the transmission shaft 62 is fixedly connected with a second transmission bevel gear 66, a driven bevel gear 67 is fixedly sleeved in the middle of the driven shaft 63, and the second transmission bevel gear 66 is meshed with the driven bevel gear 67. Both ends of the driving shaft 61 are fixedly connected with rotating rollers 68, and the side walls of the rotating rollers 68 are tightly abutted against the inner side walls of the drainage well 1 and can roll relatively. The two ends of the driven shaft 63 are fixedly connected with row brushes 69, and the bristles of the row brushes 69 are tightly propped against the inner side wall of the drainage well 1. In order to further clear up the inside wall to drainage well 1, the roof rigid coupling of purifying box 31 has scraper 7, and the blade of scraper 7 supports tightly and can slide relatively with drainage well 1's inner wall. The scraper 7 extends in the circumferential direction of the drain well 1, and the scraper 7 is located between the driven shaft 63 and the ceiling wall of the purification box 31.

Referring to fig. 1 and 4, a counterweight frame 34 is fixedly connected to the lower portion of the purification box 31 through a connecting rod, the counterweight frame 34 is a rectangular frame structure, four limiting grooves 341 are formed in the outer side wall of the counterweight frame 34, and the four limiting grooves 341 correspond to the four side walls of the counterweight frame 34 one to one. The inside wall of drainage well 1 corresponds the position of spacing groove 341 and has seted up spout 11, all is provided with spacing subassembly 8 in every spout 11, and spacing subassembly 8 includes stopper 81 and spacing spring 82. The limiting block 81 slides in the sliding groove 11 along the horizontal direction, the limiting spring 82 is fixedly connected to one end of the limiting block 81 far away from the counterweight frame 34, and the other end of the limiting spring 82 is fixedly connected to the bottom of the sliding groove 11 facing the counterweight frame 34.

Referring to fig. 1 and 4, in order to improve stability when the stopper 81 moves, a plurality of balls 83 are embedded in the circumferential sidewall of the stopper 81, the plurality of balls 83 are disposed at equal intervals in the circumferential direction of the stopper 81, and each ball 83 is in rolling connection with the sidewall of the sliding groove 11. In order to facilitate the insertion of the stopper 81 into the stopper groove 341, one end of the stopper 81 close to the weight rack 34 is set to be conical. In order to enhance the connection strength between the limiting block 81 and the counterweight housing 34, a magnetic suction pipe 84 is fixedly inserted into each limiting groove 341, and the conical end of the limiting block 81 is matched with the magnetic suction pipe 84 in an inserting manner. When the weight rack 34 drives the purification box 31 to descend together in the drainage well 1 until the limiting groove 341 is communicated with the sliding groove 11, the metal ball 52 and the magnetic block 53 are fixedly adsorbed, the traction rope 51 is in a tensioning state, and the conical end part of the limiting block 81 is not completely inserted into the magnetic suction pipe 84, so that the purification box 31 is fixed in the drainage well 1.

Referring to fig. 1 and 5, an inverted conical cylinder 32 is disposed in the purification box 31, and an outer sidewall of a top of the conical cylinder 32 is closely attached to an inner sidewall of the purification box 31 and fixedly connected thereto by bolts. The side wall of the conical cylinder 32 is provided with a plurality of filtering holes 321, and the filtering holes 321 are used for filtering the accumulated water again. In order to facilitate timely dredging of the filter hole 321, a cleaning assembly 4 is arranged in the conical cylinder 32. The cleaning assembly 4 comprises a rotating shaft 41, a helical blade 42 and a cleaning brush 43, the rotating shaft 41 is vertically arranged, the axis of the rotating shaft is overlapped with the axis of the conical cylinder 32, and the rotating shaft 41 is rotatably connected to the bottom wall of the conical cylinder 32 through a bearing. The number of the helical blades 42 is four, one end of each of the four helical blades 42 is fixedly connected to one end of the rotating shaft 41 extending to the lower side of the conical cylinder 32, and the four helical blades 42 are arranged at equal intervals along the circumferential direction of the rotating shaft 41. The number of the cleaning brushes 43 is two, the two cleaning brushes 43 are arranged obliquely upwards, and the bottom ends of the two cleaning brushes 43 are fixedly connected to one end of the rotating shaft 41 extending into the conical cylinder 32. The bristles of each cleaning brush 43 are tightly pressed against the inner side wall of the conical cylinder 32 and can slide relatively.

Referring to fig. 1 and 5, a funnel body 33 is disposed in the purification box 31 below the conical cylinder 32, and the radius of the top of the funnel body 33 is larger than that of the bottom thereof. The funnel 33 is coaxial with the conical cylinder 32, and the bottom of the conical cylinder 32 is inserted into the funnel 33. The outer side wall of the top of the funnel body 33 is tightly attached to the inner side wall of the purification box 31 and fixedly connected with the inner side wall through bolts. The spiral blade 42 is located right below the water outlet of the funnel body 33, the inner side wall of the funnel body 33 is provided with a plurality of spiral grooves 331, the plurality of spiral grooves 331 are arranged at equal intervals along the circumference of the funnel body 33, each spiral groove 331 extends from the water inlet of the funnel body 33 to the water outlet, and the water outlet of each spiral groove 331 faces the upper surface of the spiral blade 42.

The implementation principle of a municipal drainage system in the embodiment of the application is as follows:

when the purification box 31 needs to be fixed in the drainage well 1, an operator can push the purification box 31 and the weight rack 34 to move downwards in the drainage well 1 through a tool, the bottom of the weight rack 34 firstly extrudes the side wall of the conical end part of the limiting block 81, so that the limiting block 81 is pushed into the chute 11, the limiting spring 82 is in a compressed state at the moment, then the weight rack 34 continuously descends until the limiting groove 341 is communicated with the chute 11, the conical end part of the limiting block 81 is automatically inserted into the limiting groove 341 under the action of the limiting spring 82, and meanwhile, the limiting block 81 is inserted into the magnetic suction pipe 84. At this time, the metal ball 52 and the magnetic block 53 are attracted together, the pulling rope 51 is in a tensioned state, and the conical end of the stopper 81 is not completely inserted into the magnetic suction pipe 84, thereby fixing the purification box 31 in the drainage well 1.

After operating personnel fixes purifying box 31 in drainage well 1, the ponding on road surface falls into the inside wall of circular cone section of thick bamboo 32 after the first filtration of inspection shaft lid 2, filters the hole 321 once more to ponding after that, and the debris that mix with in the ponding are stayed in circular cone section of thick bamboo 32 after being filtered.

The filtered accumulated water falls into the spiral groove 331 after penetrating through the filter holes 321, the spiral groove 331 guides the accumulated water so that the accumulated water flows obliquely downwards, the downward flowing accumulated water impacts the spiral blade 42 to drive the spiral blade 42 to rotate, the spiral blade 42 rotates to drive the rotating shaft 41 to rotate, the rotating shaft 41 rotates to drive the cleaning brush 43 to rotate, the cleaning brush 43 rotates to clean the filter holes 321 so as to dredge the blocked filter holes 321, and therefore the probability that the accumulated water cannot continuously flow after the filter holes 321 are blocked by sundries is reduced, and the accumulated water on the road surface is rapidly discharged; the helical blade 42 is impacted to rotate by utilizing the gravitational potential energy of accumulated water, so that the energy is saved and the environment is protected.

When an operator lifts the pulling rope 51 by a tool to lift the purification box 31 and the weight rack 34 in the drainage well 1, the side wall of the magnetic suction pipe 84 presses the conical end of the limiting block 81, so that the limiting block 81 is pushed into the sliding groove 11, and the limiting block 81 is separated from the magnetic suction pipe 84.

In the ascending process of the purification box 31, the rotating roller 68 is rotated by the friction force of the inner side wall of the drainage well 1, the rotating roller 68 rotates to drive the driving shaft 61 to rotate, the driving shaft 61 rotates to drive the driving bevel gear 64 to rotate, the driving bevel gear 64 rotates to drive the first transmission bevel gear 65 to rotate, the first transmission bevel gear 65 rotates to drive the transmission shaft 62 to rotate, the transmission shaft 62 rotates to drive the second transmission bevel gear 66 to rotate, the second transmission bevel gear 66 rotates to drive the driven shaft 63 to rotate, the driven shaft 63 rotates to drive the row brush 69 to rotate, and in the rotating process of the row brush 69, the bristles of the row brush 69 can clean the inner side wall of the drainage well 1; the four groups of impurity removing assemblies 6 work simultaneously, so that the inner peripheral side wall of the drainage well 1 is convenient to clean. Simultaneously, the blade of scraper 7 is convenient for scrape the stubborn filth that bonds at drainage well 1 inside wall down.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A municipal drainage system, characterized in that: the inspection well comprises a drainage well (1) vertically arranged underground, an inspection well cover (2) arranged at the well mouth of the drainage well (1) and a purification box (31) arranged in the drainage well (1), wherein the top and the bottom of the purification box (31) are open, the top opening of the purification box (31) is communicated with the well mouth of the drainage well (1), a conical cylinder (32) arranged in an inverted manner is arranged in the purification box (31), and a plurality of filtering holes (321) for filtering accumulated water are formed in the side wall of the conical cylinder (32); a cleaning assembly (4) for cleaning the filtering hole (321) is installed in the conical barrel (32), the cleaning assembly (4) comprises a rotating shaft (41) which is rotatably connected to the bottom wall of the conical barrel (32), the axis of the rotating shaft (41) is overlapped with the axis of the conical barrel (32), the bottom end of the rotating shaft (41) extends to the lower side of the conical barrel (32) and is fixedly connected with a plurality of spiral blades (42), the top end of the rotating shaft (41) extends into the conical barrel (32) and is fixedly connected with a plurality of obliquely arranged cleaning brushes (43), and bristles of each cleaning brush (43) are tightly abutted to the inner side wall of the conical barrel (32);

the bottom wall of the inspection well cover (2) is connected with a traction rope (51), the other end of the traction rope (51) is connected to the inner side wall of the purification box (31), and the outer side wall of the purification box (31) is abutted against the inner side wall of the drainage well (1) and can slide relatively;

a counterweight frame (34) is fixedly connected below the purification box (31), a limiting groove (341) is formed in the outer side wall of the counterweight frame (34), a sliding groove (11) is formed in the position, corresponding to the limiting groove (341), of the inner side wall of the drainage well (1), a limiting component (8) is arranged in the sliding groove (11), the limiting component (8) comprises a limiting block (81) which slides in the sliding groove (11) along the horizontal direction and a limiting spring (82) which is fixedly connected to one end, close to the inner part of the sliding groove (11), of the limiting block (81), the other end of the limiting spring (82) is fixedly connected to the groove bottom of the sliding groove (11), and one end, close to the limiting groove (341), of the limiting block (81) is arranged to be in a conical shape which the limiting groove (341) is in an inserting fit;

the one end of inspection shaft lid (2) articulates in one side of drainage shaft (1) well head, sliding tray (21) have been seted up to the diapire of inspection shaft lid (2), sliding tray (21) extend and the tilt up setting gradually from the hinged end of inspection shaft lid (2) to the expansion end, sliding tray (21) internal slipping is connected with metal ball (52), the top and metal ball (52) fixed connection of haulage rope (51), the tank bottom rigid coupling of sliding tray (21) highest position has magnetic block (53) that attracts metal ball (52).

2. A municipal drainage system according to claim 1, wherein: a funnel body (33) which is coaxial with the conical barrel (32) is arranged below the conical barrel (32) in the purification box (31), the spiral blade (42) is positioned right below a water outlet of the funnel body (33), a plurality of spiral grooves (331) which are arranged along the circumferential direction of the funnel body (33) at intervals are formed in the inner side wall of the funnel body (33), and the water outlet of each spiral groove (331) faces to the upper surface of the spiral blade (42) and is communicated with the water outlet of the funnel body (33).

3. A municipal drainage system according to claim 1, wherein: the cross section of the drainage well (1) and the cross section of the purification box (31) are rectangular, impurity removing assemblies (6) used for cleaning the inner side wall of the drainage well (1) are arranged on each side wall of the purification box (31), each impurity removing assembly (6) comprises a driving shaft (61) which is horizontally arranged and rotatably connected to the bottom wall of the purification box (31), a transmission shaft (62) which is vertically arranged and rotatably connected to the side wall of the purification box (31) and a driven shaft (63) which is horizontally arranged and rotatably connected to the top wall of the purification box (31), a driving bevel gear (64) is fixedly sleeved in the middle of the driving shaft (61), a first transmission bevel gear (65) is fixedly connected to the bottom end of the transmission shaft (62), the driving bevel gear (64) is meshed with the first transmission bevel gear (65), and a second transmission bevel gear (66) is fixedly connected to the top end of the transmission shaft (62), the middle part cover of driven shaft (63) is established and is fixed with driven bevel gear (67), second drive bevel gear (66) and driven bevel gear (67) meshing, the equal rigid coupling in both ends of driving shaft (61) has live-rollers (68), the lateral wall of live-rollers (68) supports tightly with the inside wall of drainage well (1), the equal rigid coupling in both ends of driven shaft (63) has row brush (69), the brush hair of row brush (69) supports tightly with the inside wall of drainage well (1).

4. A municipal drainage system according to claim 3, wherein: the roof of purifying box (31) still is provided with scraper (7), the blade of scraper (7) supports tightly with the inside wall of drainage well (1), just driven shaft (63) are located the top of scraper (7).

5. A municipal drainage system according to claim 1, wherein: the lateral wall of stopper (81) inlays and is equipped with a plurality of balls (83), ball (83) rotate to be connected in the lateral wall of spout (11).

6. A municipal drainage system according to claim 1, wherein: a magnetic suction pipe (84) for attracting the limiting block (81) is fixedly inserted into the limiting groove (341).

7. A municipal drainage system according to claim 1, wherein: the inner side wall of the purifying box (31) is in threaded connection with a fixing ring (54), and the bottom end of the pulling rope (51) is fixedly connected to the fixing ring (54).