CN112726768B - Drainage system with double-track drainage mechanism - Google Patents

Abstract

The present invention relates to a drainage system with a dual track drainage mechanism. The drainage system comprises a double-layer drainage grate, a transmission mechanism, a power mechanism and a drainage mechanism. The power mechanism provides power for the transmission mechanism and drives the double-layer drainage grate to do relative shearing movement. The discharging mechanism comprises a double discharging pipe, double tracks, track wheels, track wheel connecting rods, a garbage penetrating plate and a garbage collection box. The double tracks comprise left tracks and right tracks which are parallel and obliquely arranged, and the same number of track wheels with the same height are arranged in the double tracks in one-to-one correspondence. The crawler wheel connecting rod is connected with crawler wheels with the same height in the two crawler belts. The tracks are all turned from the low position to the high position. And discharging the sheared water and garbage to the double tracks. The garbage penetrating plate is arranged on the outer side of one low end of the double tracks, the garbage collecting box is arranged below one high end of the double tracks, and garbage and water sheared by the double-layer drainage grate are discharged through the garbage penetrating plate or collected through the garbage collecting box, so that the problem of sewer blockage can be effectively solved.

Description

Drainage system with double-track drainage mechanism

Technical Field

The invention relates to the field of ground drainage devices, in particular to a drainage mechanism structure of a drainage system.

Background

The current treatment modes applied to drainage systems in the market are mainly blocking and cutting off pollution paths in advance and carrying out later-stage manual treatment, wherein the blocking and cutting off pollution paths in advance are mainly artificial slogan warning, buoyancy walls or fixed planes for blocking and splitting, and the manual treatment carries out procedures of garbage collection, mashing, separation and the like. At present, the prior patent CN202020134110.8 utilizes a wind power system to blow the garbage flowing down in steps into a crushing system, and most of the patents such as CN201921123496.6 are designed to have strong blocking to block excessive rainwater, but the problem of garbage blockage is not solved, and only the garbage can not enter, but the garbage cannot be eliminated.

Disclosure of Invention

The invention aims to solve the technical problem of providing a garbage disposal and blocking system for solving the problem of sewer blockage of urban roads in rainy days.

To this end, the present invention provides a drainage system with a dual track drainage mechanism. 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 discharging mechanism comprises a double discharging pipe, double tracks, track wheels, track wheel connecting rods, a garbage penetrating plate and a garbage collection box. The double tracks comprise a left track and a right track, and the left track and the right track are mutually parallel and obliquely arranged; the left crawler belt and the right crawler belt are internally provided with the crawler wheels with the same number and the same height in a one-to-one correspondence manner. The crawler wheel connecting rod is horizontally arranged, and two ends of the crawler wheel connecting rod are respectively connected with crawler wheels with the same height as the left crawler belt and the right crawler belt. The crawler wheel is driven by the power mechanism to rotate. The upper surfaces of the double tracks are seen from the lower position to the upper position. And the water and the garbage sheared by the double-layer drainage grate are discharged to the double track through double drainage pipes. The outer side of one end of the double-track is low is provided with the garbage penetrating plate, the garbage penetrating plate is communicated with the sewer outwards, the lower side of one end of the double-track is provided with the garbage collection box, and garbage and water sheared by the double-layer drainage grate are discharged through the garbage penetrating plate or collected through the garbage collection box. Through double-deck drainage comb shearing system and two track rubbish classification system, discharge little rubbish and water, collect the big rubbish that is not cut into pieces and further handle, effectively improve sewer jam problem.

As a further improvement of the drainage system with the double-track drainage mechanism, three track wheels are arranged in each track, and the three track wheels in each track are parallel to each other and distributed on the same inclined straight line; three crawler wheels in each crawler belt are arranged from low to high and are respectively a low crawler wheel, a middle crawler wheel and a high crawler wheel; the two low-position crawler wheels are fixedly connected through a horizontal crawler wheel connecting rod, the two middle-position crawler wheels are fixedly connected through a horizontal crawler wheel connecting rod, and the two high-position crawler wheels are fixedly connected through a horizontal crawler wheel connecting rod; the upper surface of the crawler belt is changed from a low-level crawler belt wheel to a high-level crawler belt wheel, and the lower surface of the crawler belt is changed from the high-level crawler belt wheel to the low-level crawler belt wheel. The water flow impacts the surface of the crawler belt, the water and the small garbage flow downwards, and the large garbage which is not sheared separately is adsorbed by the crawler belt to move upwards and fall into the garbage collection box.

As a further improvement of the drainage system with three crawler wheels, the power mechanism drives the crawler wheel connecting rod between the two middle crawler wheels to rotate, and the two low crawler wheels and the two high crawler wheels rotate along with the connecting rod as driven wheels.

As a further improvement of the drainage system with three crawler wheels, three upright support columns are arranged in the drainage system and respectively support three crawler wheel connecting rods, and each crawler wheel connecting rod can pass through one support column in a rotatable mode.

As a further improvement of the drainage system with the double-track drainage mechanism, the double tracks are arranged at an inclined angle of 15 degrees relative to the horizontal plane, so that the classification of large garbage and small garbage is facilitated.

As a further improvement of the drainage system with the double-track drainage mechanism, the drainage system comprises a housing, wherein an upper layer drainage grate is arranged on the top surface of the housing; a lower layer drainage grate is arranged below the upper layer drainage grate in the outer cover, and the upper layer drainage grate and the lower layer drainage grate form the double-layer drainage grate; the transmission mechanism and the power mechanism are both arranged in the outer cover; the garbage penetrating plate is arranged on one side wall of the outer cover; the garbage collection box penetrates out of the other side wall of the outer cover.

As a further improvement of the drainage system with the double-track drainage mechanism, the garbage permeation plate is provided with square grid holes for permeation of garbage, the grid holes are square with the side length of 3-10 cm, and small garbage and water which are sheared can permeate, so that individual large garbage can be prevented from permeating to block a sewer.

As a further improvement of the drainage system with the double-track drainage mechanism of the invention, the drainage system is also provided with a supporting plate which is fixed in the outer cover; the lower layer drainage grate and the transmission mechanism are fixed above the supporting plate, and the power mechanism and the drainage mechanism are both connected below the supporting plate.

As a further improvement of the drainage system with the double-track drainage mechanism, the left large round hole and the right large round hole which are adjacent to the double-layer drainage grate are arranged on the supporting plate, a drainage pipe is connected to the upper part of the left track below the left large round hole, and a drainage pipe is connected to the upper part of the right track below the right large round hole.

As a further improvement of the drainage system with the double-track drainage mechanism, the square array small holes adjacent to the double-layer drainage grate are also 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.

This scheme is based on present drainage system refuse disposal problem, utilize the mechanical energy of water to drive double-deck drainage comb and do shearing motion, effectively shear rubbish, through double track drainage system, rubbish sees through the board and covers track low-end rubbish fall to the ground scope completely, rubbish collection box covers track high-end rubbish fall to the ground scope completely, the track surface has certain adsorption capacity to big rubbish, to actual operation in-process, the rubbish of being cut garrulous by rubbish shearing system and falling into track by adsorbing rubbish and carry into rubbish collection box through rotatory track, can not be by absorptive little rubbish see through the board and send into the sewer, individual big rubbish of successful absorption is crossed the board separation by rubbish, prevent to fall into the sewer, can effectively dredge rubbish and prevent the jam problem.

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 3-10 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.

Claims (8)

1. A drainage system having a dual track drainage mechanism, characterized by: 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 discharging mechanism comprises a double discharging pipe, double tracks, track wheels, track wheel connecting rods, a garbage penetrating plate (9) and a garbage collection box (10); the double tracks comprise a left track (17) and a right track (18), and the left track (17) and the right track (18) are parallel to each other and are obliquely arranged; the left crawler belt (17) and the right crawler belt (18) are internally provided with the crawler wheels with the same number and the same height in a one-to-one correspondence manner; the crawler wheel connecting rod is horizontally arranged, and two ends of the crawler wheel connecting rod are respectively connected with crawler wheels with the same height as the left crawler belt (17) and the right crawler belt (18); the crawler wheel is driven by the power mechanism to rotate; the upper surfaces of the double tracks are seen from the lower position to the upper position; the water and the garbage sheared by the double-layer drainage grate are discharged to the double track through double drainage pipes; the outer side of one end of the double crawler belt, which is low, is provided with the garbage penetrating plate (9), the garbage penetrating plate (9) is communicated with a sewer outwards, the lower part of one end of the double crawler belt, which is high, is provided with the garbage collection box (10), and garbage and water sheared by the double-layer drainage grate are discharged through the garbage penetrating plate (9) or collected through the garbage collection box (10);

Three crawler wheels are arranged in each crawler belt, and the three crawler wheels in each crawler belt are parallel to each other and distributed on the same inclined straight line; three crawler wheels in each crawler belt are arranged from low to high and are respectively a low crawler wheel (19), a middle crawler wheel (20) and a high crawler wheel (21); the two low-position crawler wheels (19) are fixedly connected through a horizontal crawler wheel connecting rod, the two middle-position crawler wheels (20) are fixedly connected through a horizontal crawler wheel connecting rod, and the two high-position crawler wheels (21) are fixedly connected through a horizontal crawler wheel connecting rod; the upper surface of the crawler belt is turned from a low-level crawler belt wheel (19) to a high-level crawler belt wheel (21), and the lower surface of the crawler belt is turned from the high-level crawler belt wheel (21) to the low-level crawler belt wheel (19);

The double tracks are all inclined by 15 degrees relative to the horizontal plane.

2. The drainage system with dual track drainage mechanism of claim 1 wherein: the power mechanism drives the crawler wheel connecting rod between the two middle crawler wheels (20) to rotate, and the two low crawler wheels (19) and the two high crawler wheels (21) are used as driven wheels to rotate.

3. The drainage system with dual track drainage mechanism of claim 1 wherein: three upright support columns are arranged in the drainage system and respectively support three crawler wheel connecting rods, and each crawler wheel connecting rod respectively and rotatably penetrates through one support column.

4. The drainage system with dual track drainage mechanism of claim 1 wherein: the drainage system comprises an outer cover (1), wherein an upper layer drainage grate is arranged on the top surface of the outer cover (1); a lower layer drainage grate is arranged below the upper layer drainage grate in the outer cover (1), and the upper layer drainage grate and the lower layer drainage grate form the double-layer drainage grate; the transmission mechanism and the power mechanism are both arranged in the outer cover (1); the garbage penetrating plate (9) is arranged on one side wall of the outer cover (1); the garbage collection box (10) penetrates out of the other side wall of the outer cover (1).

5. The drainage system with dual track drainage mechanism of claim 4 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 3-10 cm.

6. The drainage system with dual track drainage mechanism of claim 4 wherein: the drainage system is also provided with a supporting plate (8), and the supporting plate (8) is fixed in the outer cover (1); the lower layer drainage grate and the transmission mechanism are fixed above the supporting plate (8), and the power mechanism and the drainage mechanism are both connected below the supporting plate (8).

7. The drainage system with dual track drainage mechanism of claim 6 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 double-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).

8. The drainage system with dual track drainage mechanism of claim 7 wherein: the support plate (8) is also provided with square array small holes (82) which are adjacent to the double-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.