CN112726769B

CN112726769B - Drainage system

Info

Publication number: CN112726769B
Application number: CN202011622374.9A
Authority: CN
Inventors: 杨昊天; 何佳璐; 韩耀霆; 刘亚茹; 姜峰
Original assignee: Huaqiao University
Current assignee: Huaqiao University
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2024-05-31
Anticipated expiration: 2040-12-30
Also published as: CN112726769A

Abstract

The invention relates to a drainage system which is installed under the ground. The drainage system comprises a double-layer drainage grate, a transmission mechanism, a power mechanism and a drainage mechanism. The power mechanism is connected with the transmission mechanism, and the transmission mechanism is connected with the double-layer drainage grate to drive the double-layer drainage grate to do relative shearing movement; the water flow passing through the double-layer drainage grate provides power for the power mechanism and is discharged out of the system through the discharge mechanism. The drainage system includes a housing and a support plate within the housing. The transmission mechanism comprises a crank, a disc and an outer disc. The outer disc is arranged on the supporting plate, the disc is arranged in the outer disc, and a convex cylinder is respectively arranged on the outer disc, the disc and the lower layer drainage grate; the crank is provided with three sections of holes which are respectively connected with three convex cylinders. The power mechanism drives the disc to rotate in the circular groove of the outer disc. The transmission mechanism converts the circular motion of the disc into the back-and-forth linear motion of the lower layer drainage grate, and performs shearing motion relative to the upper layer drainage grate, so that the fallen garbage is sheared and crushed, and the blockage of a sewer is prevented.

Description

Drainage system

Technical Field

The invention relates to the field of ground drainage devices, in particular to a drainage system which comprises a double-layer drainage grate, a transmission mechanism, a power mechanism and a drainage mechanism.

Background

When heavy rain is produced, some underground garages and urban roads often have the condition that garbage blocks the inlet of a sewer, and in recent years, a plurality of water blocking and draining systems are arranged on the market, so that in order to solve the condition that branches and leaves and garbage and sediment are blocked, most of patents such as CN201921123496.6 have the scheme that the scheme is that the design block is strong to block excessive rainwater amount, but the problem of garbage blocking is not solved, and only garbage can be guaranteed not to enter, but garbage cannot be eliminated. The water-blocking drainage system disclosed in the patent CN202020134110.8 is to blow garbage into a fan crushing system by wind power, so that potential energy of water is not utilized well.

Disclosure of Invention

The invention aims to solve the technical problem of providing a garbage disposal and discharge system utilizing water energy so as to solve the problem of water channel blockage of urban roads in rainy days.

To this end, the present invention provides a drainage system that is installed under the ground. The drainage system comprises a double-layer drainage grate, a transmission mechanism, a power mechanism and a drainage mechanism. The power mechanism is connected with the transmission mechanism, the transmission mechanism is connected with the double-layer drainage grate, and the transmission mechanism drives the double-layer drainage grate to do relative shearing movement; the water flow passing through the double-layer drainage grate provides power for the power mechanism and is discharged out of the system through the drainage mechanism. The drainage system comprises an outer cover, and a ground drainage grate is arranged on the top surface of the outer cover; a fixed supporting plate is arranged in the outer cover; the lower layer drainage grate is arranged below the ground drainage grate on the supporting plate, and the ground drainage grate and the lower layer drainage grate form the double-layer drainage grate.

The transmission mechanism comprises a crank, a disc and an outer disc; the outer disc is fixedly arranged on the supporting plate, the disc is fit into a circular groove formed in the outer disc, an outer convex cylinder is arranged on the upper surface of the outer disc, an inner convex cylinder is arranged at the edge of the upper surface of the disc, and a tail end convex cylinder is arranged on the upper surface of the lower layer drainage grate; the crank is of a strip-shaped structure, is horizontally arranged and is provided with three sections of longitudinally penetrated holes, and the three sections of holes are sequentially a first section of holes, a second section of holes and a third section of holes from one end to the other end; the first section of hole is cylindrical, the diameter of the first section of hole is the same as that of the convex cylinder, and the convex cylinder penetrates into the first section of hole upwards; the second section of hole is strip-shaped, the width of the second section of hole is the same as the diameter of the inner convex cylinder, and the inner convex cylinder penetrates into the second section of hole upwards; the third section of hole is a strip-shaped hole with an open end, the width of the third section of hole is the same as the diameter of the convex cylinder at the end, and the convex cylinder at the end penetrates into the strip-shaped hole with the open end upwards.

The outer side surface of the outer disc is provided with a sliding groove which is arranged at one end far away from the outer convex cylinder; a sliding block is arranged on the side surface of the lower layer drainage grate, and the sliding block is embedded into the sliding groove; the power mechanism drives the disc to rotate in the circular groove of the outer disc.

The power mechanism drives the disc to rotate, the inner convex cylinder on the disc rotates circumferentially, the crank rotates along with the inner convex cylinder, the crank rotates by taking the outer convex cylinder as an approximate rotation center, the tail end of the crank moves back and forth in an arc manner, and the lower layer drainage grate is limited in a linear chute through a sliding block of the lower layer drainage grate, so that the tail end convex cylinder inserted into a third section hole of the crank moves back and forth in a linear manner, namely, the lower layer drainage grate moves back and forth relative to the fixed ground drainage grate, fallen garbage can be sheared, and the sheared garbage can be smoothly discharged out of the system into a sewer without blocking the sewer.

As a further improvement of the drainage system, the lower layer drainage grate comprises a cylindrical drainage grate and a rectangular drainage grate which are arranged on the same layer and are relatively fixed; the cylindrical drainage grate and the rectangular drainage grate are distributed on two sides of the tail end convex cylinder. The rectangular drainage grate has sharp edges, so that garbage can be easily sheared, and the cylindrical drainage grate can also shear garbage relative to the ground drainage grate by shearing motion, so that garbage can be easily permeated, and garbage retention is reduced. The above-mentioned driving mechanism is used for converting the circular motion of the disk into the back-and-forth linear motion of the cylindrical drain grate and the rectangular drain grate, and the cylindrical drain grate and the rectangular drain grate can be moved back and forth every time the disk rotates for one circle.

As a further improvement of the drainage system, the grid lines of the cylindrical drainage grid and the long rectangular drainage grid are linear and are perpendicular to the grid lines of the ground drainage grid, and the cylindrical drainage grid and the long rectangular drainage grid move back and forth along the grid line direction of the ground drainage grid. The vertically crossed grid lines can smoothly cut garbage.

As a further improvement of the drainage system, the power mechanism is arranged in the outer cover and is positioned below the supporting plate, and comprises a water turbine, a first bevel gear, a second bevel gear, a third bevel gear, a fourth bevel gear and a connecting rod; the hydraulic turbine is fixedly connected with a first bevel gear below through a section of vertical connecting rod, the vertical first bevel gear is meshed with a horizontal second bevel gear, the second bevel gear is fixedly connected with a horizontal third bevel gear through a section of horizontal connecting rod, the third bevel gear is meshed with a vertical fourth bevel gear, and the fourth bevel gear passes through the outer disc upwards through a section of vertical connecting rod and is connected with the disc; the water turbine rotates through water flow impact, and water energy is effectively utilized.

As a further improvement of the drainage system, the power mechanism further comprises a booster propeller for increasing the impact force of water flow, and the booster propeller is arranged right above the water turbine. When the water flow speed is too low, the impact force of the water flow on the water turbine is increased through the booster propeller, so that the water turbine rotates faster.

As a further improvement of the drainage system, the drainage mechanism comprises a left crawler belt and a right crawler belt which are parallel to each other and are obliquely arranged, and further comprises a garbage penetrating plate and a garbage collection box. The garbage penetrating plate is arranged at the outer sides of the lower ends of the left crawler belt and the right crawler belt and is communicated with a sewer. The garbage collection box is arranged below the high ends of the left crawler belt and the right crawler belt. The left crawler belt and the right crawler belt are connected to the second bevel gear through connecting rods, and the rotation of the second bevel gear drives the upper surfaces of the left crawler belt and the right crawler belt to turn from a low position to a high position. Because the crawler belt has certain adsorption force on the big garbage, most of the water flows downwards to flow out of the garbage penetrating plate, and the big garbage which is not sheared by the double-layer drainage grate falls into the garbage collection box along with the upward movement of the crawler belt, and is treated again after being collected.

As a further improvement of the drainage system, the garbage permeation plate is provided with square grid holes for permeation of garbage, the grid holes are square with the side length of 2-8 cm, large garbage which is not adsorbed by the crawler belt can be prevented, and sewer blockage is prevented.

As a further improvement of the drainage system, a left large round hole and a right large round hole which are adjacent to the lower layer drainage grate are arranged on the support plate, a drainage pipe is connected below the left large round hole to the upper part of the left crawler belt, a drainage pipe is connected below the right large round hole to the upper part of the right crawler belt, and large garbage which is not sheared is separated by the crawler belt.

As a further improvement of the drainage system, square array small holes close to the lower layer drainage grate are arranged on the supporting plate, and water flow passing through the square array small holes impacts the power mechanism to drive the power mechanism to rotate. The square array small holes pass through water and small garbage to prevent the running of the power mechanism from being blocked.

As a further improvement of the drainage system, a water level sensor is arranged in the outer cover and can be started and stopped according to the water level control system.

The drainage system can improve the blockage situation of the sewer of the urban road in rainy days and reduce the phenomenon of garbage blockage caused by too small water flow speed and too much garbage.

Drawings

Fig. 1 is an overall assembly schematic of the drainage system of the present invention.

Fig. 2 is a schematic view of the drainage system of fig. 1 with the cover removed.

Fig. 3 is an enlarged view of the transmission mechanism of the cylindrical drain grate and the elongated rectangular drain grate of fig. 2.

Fig. 4 is a schematic diagram of a power mechanism of the drainage system of the present invention.

Fig. 5 is a top view of the booster propeller of fig. 4.

Fig. 6 is a schematic view showing a bottom view of the drainage mechanism of the present invention in a drainage system.

Reference numerals: the garbage collection device comprises a housing 1, a ground draining grate 2, a cylindrical draining grate 3, a long rectangular draining grate 4, a tail end convex cylinder 31, a crank 5, a disc 6, an inner convex cylinder 61, an outer disc 7, an outer convex cylinder 71, a sliding chute 72, a supporting plate 8, a left large round hole 81, a square array small hole 82, a right large round hole 83, a garbage penetrating plate 9, a garbage collection box 10, a booster propeller 11, a water turbine 12, a first bevel gear 13, a middle support column 130, a second bevel gear 14, a third bevel gear 15, a fourth bevel gear 16, a bearing pedestal 160, a left crawler 17, a right crawler 18, a low crawler wheel 19, a middle crawler wheel 20, a high crawler wheel 21 and a partition 22.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Example 1

The drainage system comprises a double-layer drainage grate, a transmission mechanism of a lower-layer drainage grate, a power mechanism and a drainage mechanism. As shown in fig. 1, the drainage system of the present invention is assembled in its entirety, and is installed under the ground. The drainage system of fig. 1 includes a housing 1 and an internal drainage device. The top surface of the outer cover 1 is provided with a ground drainage grate 2, and the ground drainage grate 2 is flush with the ground and is used for leaking ground water and garbage to drain into a sewer.

Fig. 2 is a schematic view of the drainage system of fig. 1, with the cover 1 removed. The internal drainage device comprises a lower layer drainage grate positioned right below the ground drainage grate 2, wherein the two layers of drainage grate are arranged at close distance, and the interval is 1-10 cm for effective shearing movement. The lower layer drainage grate is of a strip-shaped U-shaped groove structure, a cylindrical drainage grate 3 and a strip-shaped rectangular drainage grate 4 are fixedly arranged in the strip-shaped U-shaped groove at intervals, and a protruding sliding block is further arranged on the outer side face of the lower layer drainage grate. The cylindrical drainage grate 3 and the long rectangular drainage grate 4 can be integrally driven to move so as to cut and shear solid garbage falling from the ground drainage grate 2, and garbage accumulation entering a sewer is reduced.

Fig. 3 is an enlarged view of the transmission mechanism of the cylindrical drain grate 3 and the elongated rectangular drain grate 4 of fig. 2. The transmission mechanism for the cylindrical drainage grate 3 and the rectangular drainage grate 4 to move back and forth comprises a crank 5, a disc 6 and an outer disc 7. The disc 6 fits into a circular groove formed in the outer disc 7, and the disc 6 can be driven by a power mechanism to rotate in the circular groove. An inner convex cylinder 61 is arranged on the upper surface of the disc 6 near the edge, an outer convex cylinder 71 is arranged on the upper surface of the outer disc 7, which is not positioned in the circular groove, a sliding groove 72 is arranged on the outer side surface of the outer disc 7, and the outer convex cylinder 71 is arranged on one side far away from the sliding groove 72. The sliding block of the lower layer drainage grate is embedded into the sliding groove 72, and the sliding block can slide in the sliding groove 72 under the action of external force.

A tail end convex cylinder 31 is arranged in the U-shaped groove of the lower layer drainage grate and between the cylindrical drainage grate 3 and the rectangular drainage grate 4. The crank 5 is of a strip-shaped structure and is horizontally arranged, and the crank 5 is provided with three sections of longitudinally penetrated holes, wherein the three sections of holes are sequentially a first section of hole, a second section of hole and a third section of hole from one end to the other end. The first section of hole is cylindrical, the diameter of the first section of hole is consistent with that of the outer convex cylinder 71, and the outer convex cylinder 71 penetrates into the first section of hole upwards; the second section of hole is strip-shaped, the width of the second section of hole is the same as the diameter of the inner convex cylinder 61, and the inner convex cylinder 61 penetrates into the second section of hole upwards and can slide in the strip-shaped hole; the third section of hole is an open-ended strip-shaped hole, the width of which is the same as the diameter of the end convex cylinder 31, and the end convex cylinder 31 penetrates upwards into the open-ended strip-shaped hole.

The disc 6 is driven by a power mechanism connected with the lower end of the disc 6 to rotate, the inner convex cylinder 61 moves circularly along with the disc, the circular motion of the inner convex cylinder 61 drives the crank 5 to rotate in a fan shape by taking the outer convex cylinder 71 as an approximate circle center, the tail convex cylinder 31 is driven to move back and forth in a third section hole of the crank 5, and the moving track of the tail end of the crank 5 becomes an arc of the fan-shaped rotating pattern. Since the sliding block of the lower layer drainage grate is limited in the sliding groove 72, the end convex cylinder 31 moves linearly back and forth relative to the sliding groove 72, and accordingly, the cylindrical drainage grate 3 and the long rectangular drainage grate 4 move linearly back and forth along the sliding groove 72. Therefore, the cylindrical drainage grate 3 and the strip rectangular drainage grate 4 do back and forth linear motion relative to the fixed ground drainage grate 2, and the grid lines of the cylindrical drainage grate 3 and the strip rectangular drainage grate 4 are perpendicular to the grid lines of the ground drainage grate 2, so that the back and forth motion can effectively cut hard and brittle matters such as branches, and the problem that the water outlet cannot be normally drained due to accumulation and blockage of sundries such as dead leaves and dead branches is effectively avoided. The rectangular drainage grate 4 has sharp edges, garbage is easy to cut, and the cylindrical drainage grate 3 can cut garbage relative to the ground drainage grate 2 in the cutting motion, so that garbage can be easily penetrated, and garbage retention is reduced. From the above, the transmission mechanism is used for converting the circular motion of the disc 6 into the back-and-forth linear motion of the cylindrical drain grate 3 and the rectangular drain grate 4.

As shown in fig. 2, the drainage system of the present invention further comprises a support plate 8, wherein the outer tray 7 and the lower drainage grate are mounted on the support plate 8, and the support plate 8 is fixed on the outer cover 1. Three groups of holes are formed in the supporting plate 8, are close to the lower layer drainage grate and are used for draining the sheared garbage and water. The first set of holes is a left large circular hole 81 adjacent to the cylindrical drain grate 3. The second set of apertures is a central square array of apertures 82. The third group of holes is a right large round hole 83, which is close to the rectangular drainage grate 4. Wherein, the water and the fine garbage flowing into the middle square array small holes 82 flow to the power mechanism of the drainage system, the mechanical energy of the water flow is converted into the mechanical energy of the power mechanism, and the water and the garbage flowing into the left large round hole 81 and the right large round hole 83 flow to the drainage mechanism of the drainage system.

As shown in fig. 4, an enlarged schematic view of the power mechanism of fig. 1 is shown. The power mechanism of the drainage system comprises a booster propeller 11, a water turbine 12, a first bevel gear 13, a second bevel gear 14, a third bevel gear 15, a fourth bevel gear 16 and a connecting rod. The booster propeller 11 is connected by a conduit (not shown in fig. 5) to a square array of orifices 82 above. The top view of the booster propeller 11 is shown in fig. 5, and includes three blades, a central shaft, a cross fixed to the central shaft, and a peripheral protection ring. The center of the water turbine 12 is a section of vertical connecting rod, and the booster propeller 11 is rotatably sleeved on the vertical connecting rod of the water turbine 12 through the center thereof. The booster propeller 11 is driven by electric power, and three blades rotate to cause negative pressure, so that water flow passes through blade gaps rapidly and impacts the water turbine 12 below rapidly, the water flow pushes the water turbine 12 to rotate, the mechanical energy of the water flow is converted into the mechanical energy of the water turbine 12, and when accumulated water to be discharged is increased, the increased water flow accelerates the rotation of the water turbine 12, so that the reciprocating frequency of the lower-layer drainage grate is increased, and garbage is dredged. The vertical connecting rod at the center of the water turbine 12 is fixedly connected to the first bevel gear 13 below, so that the water turbine 12 can drive the first bevel gear 13 to rotate. The vertical first bevel gear 13 is meshed with the horizontal second bevel gear 14, the second bevel gear 14 is fixedly connected with the horizontal third bevel gear 15 through a section of horizontal connecting rod, the third bevel gear 15 is meshed with the vertical fourth bevel gear 16, a section of vertical connecting rod is fixedly connected above the fourth bevel gear 16, and the vertical connecting rod passes through the outer disc 7 through a bearing and is fixedly connected with the disc 6. The vertical connecting rod of the fourth bevel gear 16 to the disc 6 also passes down through the fourth bevel gear 16 and is connected to a spacer 22 (spacer 22 as in fig. 1) provided inside the housing 1 by means of a bearing housing 160, providing support for the fourth bevel gear 16. The conical surfaces of the first bevel gear 13, the second bevel gear 14, the third bevel gear 15 and the fourth bevel gear 16 which are meshed with each other are limited to the outer periphery of the gears, and the central positions of the bevel gears are all planar and are not contacted. A middle support column 130 is arranged right below the first bevel gear 13, the lower end of the middle support column 130 is fixed on the interlayer 22, and a vertical connecting rod connecting the water turbine 12 and the first bevel gear 13 also passes through the center of the first bevel gear 13 downwards and is connected with the upper end of the middle support column 130 through a bearing seat.

Through the above connection structure, the water flow pushes the water turbine 12 to rotate, the first bevel gear 13 rotates along with the water flow, the second bevel gear 14 is driven to rotate, the third bevel gear 15 rotates coaxially with the water flow, and the fourth bevel gear 16 is driven to rotate, so that the disc 6 is pushed to rotate in the circular groove of the outer disc 7, and the cylindrical drainage grate 3 and the strip rectangular drainage grate 4 do back and forth linear movement through the cooperation of the fixed inner convex cylinder 61 on the disc 6 and the sliding connection crank 5 and the transmission mechanism of the crank 5, so that the cylindrical drainage grate 3 and the strip rectangular drainage grate 4 do shearing movement in cooperation with the ground drainage grate 2 fixed above, solid garbage flowing in from the ground drainage grate 2 can be sheared, and the aim of crushing and cleaning garbage is achieved. The bevel gear and the connecting rod fixed with the bevel gear can be fixed through the shaft fit of the H7/H6 hole. Wherein the first bevel gear 13 and the fourth bevel gear 16 are identical in shape and size, and the second bevel gear 14 and the third bevel gear 15 are identical in shape and size.

Fig. 6 is a schematic view of the bottom view of fig. 2, including the discharge mechanism. The discharging mechanism comprises a double discharging pipe, double tracks, track wheels, a track wheel connecting rod, a garbage penetrating plate 9 and a garbage collecting and storing box 10. The double tracks are arranged in parallel, are equal in size, are inclined by 15 degrees relative to the horizontal plane, and are driven to rotate by the power mechanism. The double tracks are divided into a left track 17 and a right track 18 according to the azimuth, three track wheels are arranged in each group of tracks, the three track wheels are parallel and on the same inclined straight line, and the two groups of six track wheels are equal in size. The crawler belt is obliquely arranged relative to the horizontal plane, so that the three crawler belt wheels are also arranged from low to high, the crawler belt comprises a low crawler belt wheel 19, a middle crawler belt wheel 20 and a high crawler belt wheel 21, the upper surface of the crawler belt is turned from the low crawler belt wheel 19 to the high crawler belt wheel 21, and the lower surface of the crawler belt is turned from the high crawler belt wheel 21 to the low crawler belt wheel 19. Wherein the middle crawler wheel 20 of the left crawler 17 is fixed outside the horizontal connecting rod between the second bevel gear 14 and the third bevel gear 15, and synchronously rotates along with the horizontal connecting rod. Since the first bevel gear 13 is meshed with the second bevel gear 14, the meshed conical surfaces are limited to the outer periphery of the gears, and the central positions of the two bevel gears are all planar and not contacted, a horizontal connecting rod is fixedly connected to the central plane of the second bevel gear 14, and the horizontal connecting rod rotatably passes through the middle position supporting column 130 and is fixed on the end surface of the middle position crawler wheel 20 of the right crawler belt 18, so that the two middle position crawler wheels 20 realize coaxial synchronous rotation. The second bevel gear 14 rotates clockwise when viewed from the front surface toward the center plane thereof, thereby moving the upper surface of the crawler belt from the lower position to the higher position. The lower crawler wheel 19 of the left crawler 17 and the lower crawler wheel 19 of the right crawler 18 are fixedly connected through a section of horizontal connecting rod in interference fit to realize coaxial synchronous rotation, the horizontal connecting rod is supported by a shorter supporting column, and the supporting column is also fixed on a interlayer 22 arranged inside the outer cover 1. The high-position crawler wheels 21 of the left crawler belt 17 and the high-position crawler wheels 21 of the right crawler belt 18 are fixedly connected through a section of horizontal connecting rod in an interference fit mode to realize coaxial synchronous rotation, and the horizontal connecting rod is supported in the garbage collection box 10 through a higher supporting column. During the running of the track, the middle crawler wheel 20 is a driving wheel, and the low crawler wheel 19 and the high crawler wheel 21 are driven wheels. The high-level crawler wheel 21 serves as a conveying end of the crawler from which large garbage will fall into the garbage collection box 10 below. The garbage collection box 10 penetrates through the interlayer 22 downwards, is abutted to the inner bottom surface of the outer cover 1, laterally penetrates out of the side wall of the outer cover 1, and large garbage flows out of the outer cover 1 through the garbage collection box 10 and can be collected manually for further treatment.

In the discharge mechanism, a left large circular hole 81 connects one discharge pipe to the upper side of the left crawler belt 17, and a right large circular hole 83 connects the other discharge pipe to the upper side of the right crawler belt 18. The garbage penetrating plate 9 is vertically arranged outside the two low-position crawler wheels 19, and the lower end of the garbage penetrating plate is connected with the interlayer 22 inside the outer cover 1. The garbage penetrating plate 9 is used as the side wall of the outer cover 1, and is provided with grid holes for penetrating garbage, and the grids can be square and have a side length of 2-10 cm.

The garbage discharged from the left and right large circular holes 81 and 83 to the upper side of the track through the discharge pipe is adsorbed on the track during the rotation of the track due to the certain adsorption capacity of the track surface to the large garbage, and moves obliquely upward with the track, and falls into the garbage collection box 10. The refuse and water not adsorbed by the tracks flow downward and out of the tracks, passing through the grid holes of the refuse-permeable plate 9 into the sewer.

Example 2

As a second embodiment of the drainage system of the present invention, three sets of holes formed in the support plate 8 are each provided with a siphon type rain bucket to increase the water flow rate, increase the power transmission, and improve the rotational mechanical energy of the water turbine 12, and the other structures are the same as those of example 1.

The present invention is not limited to the above-described embodiments, and for example, the present invention may be configured to directly drive the water turbine 12 to rotate by electricity to provide the shearing power of the drain grate and the power of the crawler belt rotation without providing the booster propeller 11. The cylindrical drainage grate 3 and the rectangular drainage grate 4 in the lower layer drainage grate are not limited to the cylindrical and rectangular drainage grate, and can be blade pieces which are beneficial to cutting garbage.

Claims

1. A drainage system, install in subaerial, its characterized in that: the drainage system comprises a double-layer drainage grate, a transmission mechanism, a power mechanism and a drainage mechanism; the power mechanism is connected with the transmission mechanism, the transmission mechanism is connected with the double-layer drainage grate, and the transmission mechanism drives the double-layer drainage grate to do relative shearing movement; the water flow passing through the double-layer drainage grate provides power for the power mechanism and is discharged out of the system through the discharge mechanism; the drainage system comprises an outer cover (1), and a ground drainage grate (2) is arranged on the top surface of the outer cover (1); a fixed supporting plate (8) is arranged in the outer cover (1); a lower layer drainage grate is arranged below the ground drainage grate (2) on the supporting plate (8), and the ground drainage grate (2) and the lower layer drainage grate form the double-layer drainage grate;

The transmission mechanism comprises a crank (5), a disc (6) and an outer disc (7); the outer disc (7) is fixedly arranged on the supporting plate (8), the disc (6) is fit into a circular groove formed in the outer disc (7), an outer convex cylinder (71) is arranged on the upper surface of the outer disc (7), an inner convex cylinder (61) is arranged at the edge of the upper surface of the disc (6), and a tail end convex cylinder (31) is arranged on the upper surface of the lower layer drainage grate; the crank (5) is of a strip-shaped structure, is horizontally arranged and is provided with three sections of longitudinally penetrated holes, and the three sections of holes are sequentially a first section of hole, a second section of hole and a third section of hole from one end to the other end; the first section of hole is cylindrical, the diameter of the first section of hole is the same as that of the outer convex cylinder (71), and the outer convex cylinder (71) penetrates into the first section of hole upwards; the second section of hole is strip-shaped, the width of the second section of hole is the same as the diameter of the inner convex cylinder (61), and the inner convex cylinder (61) penetrates into the second section of hole upwards; the third section of hole is a strip-shaped hole with an open end, the width of the third section of hole is the same as the diameter of the end convex cylinder (31), and the end convex cylinder (31) penetrates into the strip-shaped hole with the open end upwards;

The outer side surface of the outer disc (7) is provided with a chute (72) which is arranged at one end far away from the outer convex cylinder (71); a sliding block is arranged on the side surface of the lower layer drainage grate, and is embedded into the sliding groove (72); the power mechanism drives the disc (6) to rotate in the circular groove of the outer disc (7).

2. The drainage system of claim 1, wherein: the lower layer drainage grate comprises a cylindrical drainage grate (3) and a rectangular drainage grate (4) which are on the same layer and are relatively fixed; the cylindrical drainage grate (3) and the strip rectangular drainage grate (4) are distributed on two sides of the tail end convex cylinder (31).

3. The drainage system of claim 2, wherein: the grid lines of the cylindrical drainage grid (3) and the strip rectangular drainage grid (4) are linear and are perpendicular to the grid lines of the ground drainage grid (2), and the cylindrical drainage grid (3) and the strip rectangular drainage grid (4) move back and forth along the grid line direction of the ground drainage grid (2).

4. The drainage system of claim 1, wherein: the power mechanism is arranged in the outer cover (1) and is positioned below the supporting plate (8), and comprises a water turbine (12), a first bevel gear (13), a second bevel gear (14), a third bevel gear (15), a fourth bevel gear (16) and a connecting rod; the hydraulic turbine (12) is fixedly connected with a first bevel gear (13) below through a section of vertical connecting rod, the first vertical bevel gear (13) is meshed with a second horizontal bevel gear (14), the second bevel gear (14) is fixedly connected with a third horizontal bevel gear (15) through a section of horizontal connecting rod, the third bevel gear (15) is meshed with a fourth vertical bevel gear (16), and the fourth bevel gear (16) passes through the outer disc (7) upwards through a section of vertical connecting rod and is connected with the disc (6); the turbine (12) is rotated by the impact of the water flow.

5. The drainage system of claim 4 wherein: the power mechanism further comprises a booster propeller (11) for increasing the impact force of water flow, and the booster propeller (11) is arranged right above the water turbine (12).

6. The drainage system of claim 4 wherein: the discharging mechanism comprises a left crawler belt (17) and a right crawler belt (18) which are parallel to each other and are obliquely arranged, and further comprises a garbage penetrating plate (9) and a garbage collection box (10); the garbage penetrating plate (9) is arranged at the outer sides of the lower ends of the left crawler belt (17) and the right crawler belt (18), and the garbage collection box (10) is arranged below the upper ends of the left crawler belt (17) and the right crawler belt (18); the left crawler belt (17) and the right crawler belt (18) are connected to the second bevel gear (14) through connecting rods, and the rotation of the second bevel gear (14) drives the upper surfaces of the left crawler belt (17) and the right crawler belt (18) to turn from a low position to a high position.

7. The drainage system of claim 6 wherein: the garbage permeation plate (9) is provided with square grid holes for permeation of garbage, and the grid holes are square with the side length of 2-8 cm.

8. The drainage system of claim 7 wherein: the support plate (8) is provided with a left large round hole (81) and a right large round hole (83) which are adjacent to the lower layer drainage grate, a discharge pipe is connected below the left large round hole (81) to the upper part of the left crawler belt (17), and a discharge pipe is connected below the right large round hole (83) to the upper part of the right crawler belt (18).

9. A drainage system according to any of claims 1 to 8 wherein: the support plate (8) is provided with square array small holes (82) which are adjacent to the lower layer drainage grate, and water flow passing through the square array small holes (82) impacts the power mechanism to drive the power mechanism to rotate.

10. The drainage system of claim 1, wherein: a water level sensor is arranged in the outer cover (1).