CN114622640A

CN114622640A - Rainwater grate capable of automatically preventing and clearing blockage

Info

Publication number: CN114622640A
Application number: CN202210225523.0A
Authority: CN
Inventors: 付兴伟
Original assignee: Yangtze Ecology and Environment Co Ltd
Current assignee: Yangtze Ecology and Environment Co Ltd
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-06-14
Anticipated expiration: 2042-03-07
Also published as: CN114622640B

Abstract

The invention relates to the technical field of drainage, in particular to a rainwater grate capable of automatically preventing and clearing blockage, which comprises a grate box, wherein the grate box comprises an upper grate plate and a lower grate plate, through holes for water passing are formed in the upper grate plate and the lower grate plate, a plurality of fixed plates are arranged on the upper grate plate at intervals, a movable plate is arranged between the two fixed plates, an unpowered rotating device is arranged in the grate box and connected with the movable plate, when the unpowered rotating device rotates, the movable plate is driven to move to change the distance between the movable plate and the fixed plates, and the unpowered rotating device comprises a parallel double-crank mechanism and a hydrodynamic rotating wheel device for driving the parallel double-crank mechanism to rotate. The invention utilizes the unpowered rotating device with a pure mechanical structure and accumulated water, dredges the blocked grids by automatically adjusting the interval size of the grids in real time, realizes the continuous accumulated water formed by blocking due to sundries carried by rainwater confluence, and has the advantages of reliable operation and no need of manual monitoring and management.

Description

Rainwater grate capable of automatically preventing and clearing blockage

Technical Field

The invention relates to the technical field of drainage, in particular to a rainwater grate capable of automatically preventing and clearing blockage.

Background

The rainwater grate is used as an important urban drainage infrastructure and is spread on the road surface of a street lane, so that the rainwater grate can play the roles of draining, preventing large-size sundries from flowing into a drainage pipeline to cause blockage, being embedded into the road surface and not influencing the normal passing of people and vehicles on the road surface and the like. At present, the rainwater grate of fixed grid type is generally adopted, when meeting the rain flood weather, sundries such as paper scraps, melon peels, leaves, ash residues, dust, hair and the like on the road surface are often wrapped and clamped along with rainwater, are gathered into a plurality of parts and then flow to the upper part of the rainwater grate grid, and are easily clamped in the gap of the grid to block the grate to cause water accumulation on the road surface, so that the normal traveling of vehicles and pedestrians is seriously influenced, and even the accidents which endanger the personal safety and property are caused, and the problem becomes a serious difficult point problem in the operation and maintenance of a municipal drainage pipe network.

Patent document CN 104831808B discloses a technical idea of blocking prevention through a grid plate with a special structure, but because the grid plate adopts a fixed structural form, when the blocking reaches a certain degree, the rainwater grid in the scheme loses the prevention effect, and the scheme cannot effectively clear the blocking after the blocking occurs, and the risk of water accumulation and flooding still exists.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the rainwater grate capable of automatically preventing and clearing blockage.

In order to solve the technical problems, the invention adopts the technical scheme that: the rainwater grate capable of automatically preventing and clearing blockage comprises a grate box, wherein the grate box comprises an upper grate plate and a lower grate plate, through holes for water passing are formed in the upper grate plate and the lower grate plate, a plurality of fixed plates are arranged on the upper grate plate at intervals, a movable plate is arranged between the two fixed plates, a unpowered rotating device is arranged in the grate box, the unpowered rotating device is connected with the movable plate, and when the unpowered rotating device rotates, the movable plate is driven to move so as to change the distance between the movable plate and the fixed plates.

In a preferred scheme, the unpowered rotating device comprises a parallel double-crank mechanism and a hydrodynamic rotating wheel device for driving the parallel double-crank mechanism to rotate.

In a preferable scheme, the parallel double-crank mechanism comprises a main shaft and a driven shaft which are rotatably connected between an upper grate plate and a lower grate plate of the grate box through bearings, and the main shaft and the driven shaft are hinged with a movable plate through a crank; the water-driven rotating wheel device comprises a rotating wheel connected to the main shaft and a volute fixedly arranged in the grate box, and the bottom of the volute is connected with a water drain pipe; the upper grate plate of the grate box is provided with a water conduit, the lower port of the water conduit is correspondingly provided with a connecting pipe, and the connecting pipe is communicated to the inside of the volute.

In a preferred scheme, a scroll spring is connected between the main shaft and the grate box and used for resetting the movable plate.

In a preferable scheme, the water diversion pipe comprises a horizontal pipe section and a vertical pipe section, a pressure spring is arranged in the vertical pipe section, and the lower end of the pressure spring is abutted to the inside of the upper grate plate.

In the preferred scheme, the cross section of the horizontal pipe section of the water conduit is semicircular, and a grid is arranged at the port of the water conduit.

In a preferable scheme, the radius of the upper port of the connecting pipe is not less than that of the lower port of the water conduit.

In a preferred embodiment, the main shaft and the driven shaft are connected to two ends of the movable plate through cranks, respectively.

The invention also provides a method for preventing urban roads from seeping water, which comprises the step of installing the rainwater grate for automatically preventing and clearing blockage at the road sewer.

In the preferred scheme, the rainwater grate capable of automatically preventing and clearing blockage is installed, so that an upper grate plate of the grate box is flush with the road surface, the horizontal pipe section of the water conduit is higher than the road surface by a certain height, and the height is the depth of allowing water to accumulate on the road.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention utilizes the unpowered rotating device with a pure mechanical structure and accumulated water, and dredges the blocked grids by automatically adjusting the interval size of the grids in real time, thereby preventing the rainwater from converging and carrying sundries to form continuous accumulated water due to blockage;

2. the invention provides motive power for pushing the crank to rotate by locally utilizing the accumulated water and the hydrodynamic rotating wheel device, does not need to provide additional power source, and provides an additional drainage channel for the accumulated water, thereby achieving two purposes.

3. When urban roads are prevented from ponding by using the rainwater grate for automatically preventing and clearing blockage, the height of the water conduit can be installed according to the designed ponding depth of the roads, so that the rainwater grate can be flexibly adjusted and applied to all the roads.

4. In the use process of the rainwater grate, because no external power source is provided, all the actuating mechanisms are of pure mechanical structures, manual operation and monitoring are not needed in the use process, and the use and maintenance cost is low.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic top view of the present invention.

Fig. 4 is a schematic sectional view along the direction B-B in fig. 3.

FIG. 5 is a schematic bottom view of the present invention.

FIG. 6 is a schematic bottom view of the present invention.

Fig. 7 is a schematic structural view of the unpowered rotary device in the invention.

FIG. 8 is a schematic structural view of a water conduit according to the present invention.

Fig. 9 is a schematic structural view of the spindle of the present invention.

Fig. 10 is a schematic view of the structure of the volute of the present invention.

FIG. 11 is a schematic view showing a state of the movable plate after the movable plate moves during the use of the present invention.

Fig. 12 is a bottom view of the device of fig. 11.

Fig. 13 is a schematic view of the assembled state of the present invention.

In the above drawings: 10. a grate box; 11. an upper grate plate; 12. a lower grid plate; 13. a fixing plate; 14. a movable plate; 15. a water conduit; 15-1, horizontal pipe section; 15-2, vertical pipe sections; 16. a connecting pipe; 17. compressing the spring; 18. a grid; 20. an unpowered rotating device; 30. a parallel double crank mechanism; 31. a main shaft; 32. a driven shaft; 33. a crank; 34. a volute spiral spring; 40. a hydrodynamic runner apparatus; 41. a rotating wheel; 42. a volute; 43. a drain pipe; 50. a road shoulder; 51. a road surface.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the embodiments.

Example 1

Referring to fig. 1 to 13, as an embodiment of the present invention, a rainwater grate capable of automatically preventing and clearing clogging is provided, which includes a grate box 10, the grate box 10 includes an upper grate plate 11 and a lower grate plate 12, through holes for passing water are formed on the upper grate plate 11 and the lower grate plate 12, a plurality of fixed plates 13 are arranged on the upper grate plate 11 at intervals, a movable plate 14 is arranged between every two fixed plates 13, a non-powered rotating device 20 is arranged in the grate box 10, the non-powered rotating device 20 is connected with the movable plate 14, and when the non-powered rotating device 20 rotates, the movable plate 14 is driven to move to change a distance between the movable plate 14 and the fixed plates 13; the unpowered rotating device 20 comprises a parallel double-crank mechanism 30 and a hydrodynamic rotating wheel device 40 for driving the parallel double-crank mechanism 30 to rotate; the parallel double-crank mechanism 30 comprises a main shaft 31 and a driven shaft 32 which are rotatably connected between the upper grid plate 11 and the lower grid plate 12 of the grid box 10 through bearings, and the main shaft 31 and the driven shaft 32 are hinged with the movable plate 14 through a crank 33; the water-driven rotating wheel device 40 comprises a rotating wheel 41 connected to the main shaft 31 and a volute 42 fixedly arranged on the lower grid plate 12 of the grid box 10, and the bottom of the volute 42 is connected with a water drainage pipe 43; the upper grid plate 11 of the grid box 10 is also provided with a water conduit 15, the lower port of the water conduit 15 is correspondingly provided with a connecting pipe 16, and the connecting pipe 16 is communicated to the inside of the volute 42.

When the comb box 10 is installed, the comb box 10 is embedded in a road pipe well, the upper surface of the comb box 10 is superposed with a road surface 51, and a square through hole is formed in the middle of the comb box 10 and used for draining water; c-shaped grooves are formed in two side edges of the through hole, the inner sides of the C-shaped grooves form a lower water grating through fixing plates 13 and movable plates 14 which are arranged at intervals, and meanwhile, 7-shaped stepped holes are formed in the positions, close to the outer edge, of an upper cover plate of the grate box 10 and used for installing water guide pipes 15; when installed, the penstock 15 is brought close to one side of the shoulder 50.

When in use, when the water accumulation depth reaches a preset height, namely the height of the water drinking pipe 15 is higher, when the water accumulation depth is accumulated due to the blockage of the debris on the lower water grid of the grate box 10, the water flow can flow into the water guiding pipe 15; the lower end surface of the connecting pipe 16 is connected with a volute 42, the volute 42 is a hollow circular ring and is located on the lower grid plate 12 of the grid box 10, the runner 41 connected to the main shaft 31 has a plurality of fixed guide vanes, when inflowing water flows out through the volute 42, a circular amount is generated, so that the runner 41 is pushed to rotate and flows out into a drain well along a drain pipe 43 through a through hole in the middle of the runner 41, wherein the drain pipe 43 is a hollow circular pipe and is fixedly connected with the lower surface of the runner 41 and extends out of the lower grid plate 12 of the grid box 10, when the runner 41 rotates, the main shaft 31 is driven to rotate, so that the main shaft 31 drives a crank to rotate, displacement of the movable plate 14 is realized, namely, the gap between the remaining fixed plates 13 of the movable plate 14 is changed.

Example 2

Referring to fig. 1-13, as a preferred embodiment of the present invention, on the basis of embodiment 1, a volute spiral spring 34 is connected between a main shaft 31 and a grate box 10, the volute spiral spring 34 is used for returning to a movable plate 14, a water conduit 15 comprises a horizontal pipe section 15-1 and a vertical pipe section 15-2, the horizontal pipe section 15-1 of the water conduit 15 is a semi-cylindrical hollow pipe, and the end part of the water conduit is connected with a grid 18, so as to prevent the pipe from being blocked due to the inflow of large-sized impurities during water diversion, the bottom surface of the horizontal pipe section 15-1 is a plane and is slightly higher than the upper surface of an upper grate plate 11 after installation, and the height difference between the bottom surface of the horizontal pipe section 15-1 and the upper surface of the upper grate plate 11 is the allowable height of surface water accumulation.

In the embodiment, the vertical pipe section 15-2 of the water conduit 15 is a cylindrical hollow pipe, a boss is arranged on a 7-shaped stepped hole for installing the water conduit 15 on the grate box 10 and used for installing a pressure spring 17, the bottom of the pressure spring 17 is fixed on the end surface of the boss, the top of the pressure spring 17 is in contact with the inner wall of the top of the horizontal pipe section 15-1 of the water conduit 15, when a vehicle or a person passes through the grate box 10 and extrudes the water conduit 15, the water conduit 15 vertically moves downwards in the 7-shaped stepped hole of the grate box until the top of the horizontal pipe section 15-1 is superposed with the road surface, the pressure spring 17 compresses along with the downward movement of the water conduit 15 and plays a role in buffering when the water conduit 15 displaces downwards; the connecting pipe 16 is an L-shaped cylindrical hollow pipe, the upper end surface of the connecting pipe 16 is fixedly attached to the lower surface of the upper grid plate 11, the axis of the connecting pipe 16 is coincident with the axis of the vertical pipe section 15-2 of the water conduit 15, and the radius of the connecting pipe 16 is not smaller than the diameter of the water conduit 15, so that water flowing from the water conduit 15 can completely flow into the connecting pipe 16, and a sufficient hydraulic potential can be ensured to maintain the power required for driving the hydrodynamic rotating wheel device 40 to rotate.

In this embodiment, the inner end of the spiral spring 34 is fixedly connected to the main shaft 31, and the outer end of the spiral spring 34 is fixedly connected to the upper grate plate 11, because of the introduction of the spiral spring 34, when the accumulated water impacts the hydrodynamic rotating wheel device 40 to block, the spiral spring 34 deforms, and when the accumulated water is eliminated, the movable plate 14 is restored to the position of the gap preset with the fixed plate 13 under the restoring action of the spiral spring 34; the movable plate 14 is "pi" shaped, that is, two "L" shaped supporting legs are fixedly connected to two ends of the lower portion of the rectangular flat plate, wherein the supporting leg at one end is hinged to the crank 33 on the main shaft 31, and the supporting leg at the other end is hinged to the crank on the driven shaft 32.

When the automatic prevention and cleaning blocked rainwater grate provided by the invention is used for preventing urban road water accumulation, the automatic prevention and cleaning blocked rainwater grate is installed at a road sewer, and the upper grate plate 11 of the grate box 10 is flush with the road surface 51 during installation, so that the horizontal pipe section 15-1 of the water guide pipe 15 is higher than the road surface 51 by a certain height, namely the depth of the road water accumulation.

When preventing urban road ponding, the mounting height of leading water pipe 15 can be according to the relevant parameter of road design, especially allows the degree of depth of ponding to set up, through the pressure spring 17 of chooseing different length for use can.

The principle of the invention is as follows: when sundries such as paper scraps, melon peels, leaves, ash, dust, hair and the like converge along with rainwater to block gaps of a drainage grille (namely the fixed plate 13 and the movable plate 14) of the grate box 10 to cause water accumulation on the road surface, the road surface sundries are generally wrapped by particles, threads, scraps and other objects, on one hand, a space for being extruded or moved exists, on the other hand, the objects can be loosened by external force, when water accumulates on the road surface, the accumulated water enters the volute 42 through the water conduit 15 and the connecting pipe 16 to push the rotating wheel 41 and drive the main shaft 31 and the crank to rotate, and further drive the movable plate 14 to move, during the moving process, the movable plate 14 will press the sundries to move towards the fixed plate 13 on the adjacent side, at this time, the space between the movable plate and the fixed plate 13 on the adjacent side will increase, so that the impurities at the interval fall and the blockage is eliminated, rainwater flows into the pipe well at the interval from the gap, and the spiral spring 34 enables the movable plate 14 to return to the original position after the accumulated water is eliminated.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. The utility model provides an automatic rainwater grate of prevention and clearance jam, it includes the comb box, the comb box includes comb board and lower comb board, goes up and offers the through-hole that is used for crossing water on comb board and the lower comb board, go up the interval on the comb board and set up a plurality of fixed plates, characterized by: the movable plate is arranged between the two fixed plates, the unpowered rotating device is arranged in the grate box and connected with the movable plate, and when the unpowered rotating device rotates, the movable plate is driven to move so as to change the distance between the movable plate and the fixed plates.

2. The rainwater grate capable of automatically preventing and clearing the blockage according to the claim 1, which is characterized in that: the unpowered rotating device comprises a parallel double-crank mechanism and a hydrodynamic rotating wheel device for driving the parallel double-crank mechanism to rotate.

3. The rainwater grate capable of automatically preventing and clearing the blockage according to the claim 2, is characterized in that: the parallel double-crank mechanism comprises a main shaft and a driven shaft which are rotationally connected between an upper grate plate and a lower grate plate of the grate box through bearings, and the main shaft and the driven shaft are hinged with the movable plate through cranks; the water-driven rotating wheel device comprises a rotating wheel connected to the main shaft and a volute fixedly arranged in the grate box, and the bottom of the volute is connected with a water drain pipe; the upper grate plate of the grate box is provided with a water conduit, the lower port of the water conduit is correspondingly provided with a connecting pipe, and the connecting pipe is communicated into the volute.

4. The perforated strainer for rainwater capable of automatically preventing and clearing clogging according to claim 3, wherein: and a volute spiral spring is connected between the main shaft and the grate box and is used for resetting the movable plate.

5. A rainwater grate capable of automatically preventing and cleaning blockage according to claim 3, which is characterized in that: the water diversion pipe comprises a horizontal pipe section and a vertical pipe section, wherein a pressure spring is arranged in the vertical pipe section, and the lower end of the pressure spring is abutted to the inside of the upper grid plate.

6. The rainwater grate capable of automatically preventing and clearing the blockage according to the claim 5, which is characterized in that: the cross section of the horizontal pipe section of the water conduit is semicircular, and a grid is arranged at the port of the water conduit.

7. A rainwater grate capable of automatically preventing and cleaning blockage according to claim 3, which is characterized in that: the radius of the upper port of the connecting pipe is not less than that of the lower port of the water conduit.

8. A rainwater grate capable of automatically preventing and cleaning blockage according to claim 3, which is characterized in that: the main shaft and the driven shaft are respectively connected with the two end parts of the movable plate through cranks.

9. A method for preventing urban road ponding is characterized by comprising the following steps: comprising the step of installing the rainwater grate for automatically preventing and cleaning the blockage according to any one of claims 1 to 8 at the sewer port of the road.

10. The method for preventing urban road ponding according to claim 9, characterized in that: the rainwater grate capable of automatically preventing and clearing blockage is installed, so that an upper grate plate of the grate box is flush with the road surface, a horizontal pipe section of the water diversion pipe is higher than the road surface by a certain height, and the height is the depth of allowing water to accumulate on the road.