CN116163206A - Rainwater drainage system for bridge - Google Patents

Abstract

The invention discloses a rainwater drainage system for a bridge, comprising a bridge body and a rainwater drainage assembly, the rainwater drainage assembly includes a gutter, a diversion pipe and a pressure relief pipe, the gutter has a The ditch at the top and the drain at the bottom of the gutter, the gutter is closed by a cover, the cover has a water leak, and the diversion pipe communicates with the gutter through the drain; the pressure relief The pipe is installed on the side wall of the gutter to connect the gutter with the preset environment; the gutter is arranged at one end of the bridge body in the transverse direction, and the bottom surface of the gutter is inclined downward along the preset direction I; The rainwater drainage assembly also includes a collecting pipe connected to the bottom of the diversion pipe, the collecting pipe is inclined downward along the preset direction II, and the preset direction I is opposite to the preset direction II; The drainage efficiency of rainwater can reduce the collection of rainwater on the bridge deck, reduce the blockage of drainage pipes by garbage, etc., and reduce the damage of rainwater to the bridge deck pavement.

Description

Stormwater drainage systems for bridges

technical field

The invention relates to the field of bridge drainage systems, in particular to a rainwater drainage system for bridges.

Background technique

Bridges are indispensable road buildings in urban construction in modern society. Since bridges are very important traffic fortresses in modern society, people attach great importance to the safety of bridges. In rainy weather, in order to avoid bridges There will not be too much water on the bridge, which will cause safety hazards to the driving of vehicles. Drainage devices will be added to the current bridge construction.

However, due to the small drainage of bridge drainage pipes, when the rainfall is too large, the rainwater cannot be quickly discharged from the bridge deck, and it will stagnate on the bridge deck and accumulate relatively deep water, resulting in traffic jams, which will cause bridges, Vehicles and other safety hazards will also cause peeling and loosening of the bridge deck pavement layer, potholes, etc. At the same time, when it rains, the rainwater will impact and bring in a large amount of garbage, which will easily block the drainage pipes.

Therefore, in order to solve the above problems, there is a need for a rainwater drainage system for bridges, which can improve the drainage efficiency of rainwater, reduce the collection of rainwater on the bridge deck, reduce the blockage of drainage pipes by garbage, etc., and reduce the impact of rainwater on the bridge deck. Destruction of layers.

Contents of the invention

In view of this, the purpose of the present invention is to overcome the defects in the prior art and provide a rainwater drainage system for bridges, which can improve the drainage efficiency of rainwater, reduce the collection of rainwater on the bridge deck, and reduce the impact of garbage on the drainage pipes at the same time. Blockage, reducing the damage of rainwater to the pavement layer of the bridge deck.

The rainwater drainage system for bridges of the present invention includes a bridge body and a rainwater drainage assembly, and the rainwater drainage assembly includes a gutter for collecting accumulated water on the bridge body and a guide for discharging the accumulated water in the gutter Flow pipe, the gutter has a ditch opening at the top of the gutter and a drain outlet at the bottom of the gutter, the ditch is closed by a cover plate, and the cover plate has a water leak, the water leak is Multiple ones are arranged on the cover plate, and the guide pipe communicates with the gutter through the drain port;

The rainwater drainage assembly also includes a pressure relief pipe, and the pressure relief pipe is installed on the side wall of the gutter to communicate the gutter with the preset environment;

The water collection ditch is arranged at one end of the bridge body in the transverse direction, and the bottom surface of the water collection ditch is inclined downward along the preset direction I;

The rainwater drainage assembly also includes a collecting pipe connected to the bottom of the diversion pipe, the collecting pipe is in the shape of a strip extending along the length direction of the bridge body, and the collecting pipe is inclined downward along the preset direction II, so The aforementioned preset direction I and preset direction II are in opposite directions.

Furthermore, the gutter is in the shape of a strip extending along the length of the bridge body, and the rainwater drainage components are arranged in two groups on both sides of the transverse middle of the bridge body.

Further, there are a plurality of drain outlets, and the plurality of drain outlets are arranged on the bottom surface of the gutter along the preset direction I;

The diversion pipe is a straight-through pipe I, and there are multiple diversion pipes. The diversion pipes are in one-to-one correspondence with the drain outlets, and the plurality of diversion pipes communicate with the header.

Further, the high end of the collecting pipe in the height direction is the far water end of the collecting pipe, and the low end of the collecting pipe in the height direction is the near water end of the collecting pipe;

The higher end of the bottom of the gutter in the height direction is the far water end of the gutter, and the lower end of the bottom of the gutter in the height direction is the near water end of the gutter;

The far water end of the collecting pipe is located on the inner side of the near water end of the collecting ditch, so that there is a gap between the far water end of the collecting pipe and the near water end of the collecting ditch arranged outside the near water end of the collecting pipe along the preset direction I. rectification section.

Further, the drain port is closed by a water filter sheet, and the water filter sheet has a water filter port, and there are multiple water filter ports arranged on the water filter sheet.

Further, the diameter of the water filter port is smaller than that of the water leakage port.

Further, a filter screen cover is arranged at one end of the pressure relief pipe close to the gutter, and the filter screen cover has filter holes for rainwater to pass through.

Further, the pressure relief pipe is a straight-through pipe II, the end of the pressure relief pipe connected to the water collection ditch is the water inlet of the pressure relief pipe, and the end of the pressure relief pipe connected to the preset environment is the water outlet of the pressure relief pipe. In the height direction, the water inlet end of the pressure relief pipe is located at the top of the water outlet end of the pressure relief pipe.

Further, the rainwater drainage assembly further includes a support plate, which is installed in the gutter to form a support for the cover plate.

Further, the bottom surface of the cover plate protrudes downward along the height direction to form a clamping block, and the top surface of the support plate is recessed downward along the height direction to form a clamping groove, and the clamping block and the clamping groove are adapted so that the cover plate is limited to the support plate.

The beneficial effects of the present invention are: a rainwater drainage system for bridges disclosed by the present invention has the following advantages:

a. The present invention makes the water in the gutter flow from one end to the other end by setting the bottom surface of the gutter as an inclined surface, so that the water in the gutter is in a flowing state, which is beneficial for the water flow on the gutter to flow from one end to the other. The diversion pipe at the bottom is discharged into the collecting pipe, and then discharged into the ground drainage facilities through the collecting pipe through the drain pipe. At the same time, the setting of the inclined surface increases the speed of the water flow and improves the impact of the water flow. During the flow of water in the gutter, the sundries in the gutter can be rushed from one end to the other and gathered together, which facilitates the cleaning of the sundries in the gutter later, improves the cleaning efficiency, and reduces the The labor intensity of the workers, through the setting of the water filter, can effectively prevent the debris from entering the diversion pipe and causing the pipe to be blocked. The speed of the water flow in the collecting pipe is increased, and the impact force of the water flow is improved, so that the sediment and dust are not easy to deposit in the pipeline under the impact of the water flow in the pipeline, so that the pipeline is smooth.

b. Through the setting of the pressure relief pipe, when there is a heavy rainstorm, the drainage effect of the drainage pipe cannot be decompressed, which will cause a large amount of accumulated water in the gutter. When the accumulated water in the gutter overflows the inlet of the pressure relief pipe When it is at the water outlet, the accumulated water in the gutter will flow outward through the pressure relief pipe, thereby speeding up the drainage speed in the gutter, which is beneficial to the decompression of the gutter, further improving the drainage efficiency, and avoiding accumulation. Water accumulates on the bridge, which is beneficial to the passage of vehicles, and through the setting of the filter screen cover, it can effectively prevent debris from entering the pressure relief pipe and causing blockage.

c. By setting the support plate, the cover plate is supported, and the support plate is provided with a round hole for penetrating the pressure relief pipe. By setting the cooperation between the block and the slot, the cover plate is positioned. It is convenient to quickly install and disassemble the cover plate. When installing the cover plate, you only need to align the four blocks at the bottom of the cover plate with the slots on the support plate, so that the cover plates are connected together from end to end in sequence. It can effectively avoid the occurrence of displacement of the cover plate.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment:

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the front view structure schematic diagram of the present invention;

Fig. 3 is a side view structural representation of the present invention;

Fig. 4 is a schematic structural view of the cover plate separation gutter of the present invention;

Fig. 5 is a schematic structural view of the separation drain of the water filter sheet of the present invention;

Fig. 6 is the structural representation of the pressure relief pipe that has filter screen cover of the present invention;

Fig. 7 is a schematic structural view of the sub-cover plate of the present invention;

Fig. 8 is a schematic diagram of the structure along the line A-A of Fig. 2 of the present invention.

Detailed ways

Fig. 1 is a schematic structural view of the present invention, as shown in the figure, the top and the bottom refer to the top and the bottom in the height direction, the horizontal direction is the width direction of the bridge body 1, and the vertical direction is the width direction of the bridge body 1 The length direction is not repeated here; the rainwater drainage system for bridges in this embodiment includes a bridge body 1 and a rainwater drainage assembly, and the rainwater drainage assembly includes a gutter 2 for collecting water accumulated on the bridge body 1 And the diversion pipe 5 for discharging the accumulated water in the gutter 2, the diversion pipe 5 communicates with the drain pipe 7 through the collector pipe 6, and the collector pipe 6 communicates with the bottom of the diversion pipe 5, so The drainage pipe 7 is used to discharge the rainwater in the gutter 2 into the ground drainage facilities, and the gutter 2 has a ditch opening at the top of the gutter 2 and a drain 12 at the bottom of the gutter 2, the gutter 2 The rainwater discharge method of the gutter 2 is similar to direct discharge, which can make full use of the gravitational potential energy of the rainwater, speed up the discharge of rainwater in the gutter 2, and reduce the collection of rainwater in the gutter 2. The plate is closed, and the cover plate has a water leakage port 14, and the water leakage port 14 is arranged on the cover plate, and the guide pipe 5 communicates with the water collection ditch 2 through the drain port 12;

The water collecting ditch 2 is arranged at one end of the bridge body 1 in the transverse direction. Of course, the water collecting ditch 2 can also be arranged obliquely in the middle of the bridge body 1 in the transverse direction or through the transverse middle of the bridge body 1 in the longitudinal direction of the bridge body 1 according to actual conditions. The front end and the rear end are to meet the drainage needs, so I won’t go into details here. The water collection ditch 2 described in this plan is arranged at one end of the bridge body 1 in the transverse direction, so as to reduce the interference on the driving surface or pedestrian surface of the bridge body 1, and also benefit rainwater. Converging on the bridge surface, the water collecting ditch 2 is in the shape of a strip extending along the length direction of the bridge body 1, and the longitudinal ends of the water collecting ditch 2 are closed. Further, the cross section of the water collecting ditch 2 The surface is rectangular, which is beneficial to the formation of the water collecting ditch 2 . The bridge body 1 has a lateral side wall of the water collecting ditch 2 extending upwards to form a side beam 15 for protecting the water collecting ditch 2 .

Furthermore, the rainwater drainage components are two groups respectively arranged on both sides of the transverse middle part of the bridge body 1, and the gutters 2 in the two groups of rainwater drainage components are symmetrical about the central axis crossing the transverse middle part of the bridge body 1. Axisymmetrically arranged at both ends of the bridge body 1 in the transverse direction, the bridge body 1 is symmetrically separated by the central axis in the transverse middle of the bridge body 1, and the corresponding side walls at the two ends of the bridge body 1 in the transverse direction respectively extend upward to form an The side girders 15 with a one-to-one correspondence make the rainwater drainage system for the bridge more beautiful, and at the same time can further accelerate the discharge efficiency of rainwater on the bridge deck, further improve the protection of the bridge body 1, and reduce the rainwater on the bridge deck. The collection of rainwater reduces the damage to the pavement layer of the bridge deck.

The cover plate in this solution is composed of a plurality of auxiliary cover plates 4 joined end to end, which is beneficial to the cleaning of specific areas and the maintenance of local areas of the drainage system. 4, the purpose of the arrangement of the water leakage port 14 is to reduce the blockage of the drainage pipe by the garbage larger than the size of the water leakage port 14 while draining the water. The shape of the interval distribution is enough to meet the drainage function and the function of filtering large-sized garbage, so I won’t go into details here. As shown in the figure, the secondary cover plate 4 in this solution is in the shape of a rectangle extending longitudinally, and the water leakage port 14 is in the shape of Rectangular elongated shape, several leaking ports 14 are spaced from each other along the horizontal and vertical directions and are distributed in an orderly manner on the secondary cover plate 4;

The water outlet 12 is closed by the water filter 10, the water filter 10 has a water filter, and the water filter 10 is a plurality of arranged on the water filter 10; Caliber, the water filter port described in this program is circular hole-shaped, and the water filter sheet 10 is distributed with a plurality of water filter ports; the arrangement of the water filter sheet 10 with the water filter port in the gutter 2 can further play a role in filtering The effect of further filtering the garbage entering the water collecting ditch 2 through the auxiliary cover plate 4 to prevent the blockage of the drainage pipe. The water sheet 10 is separated from the drain outlet 12 to ensure the water filtration function of the water filter sheet 10; the cooperation of the water filter sheet 10 and the auxiliary cover plate 4 can ensure the rapid collection of rainwater in the gutter 2, and prevent garbage and other sundries from being discharged into the rainwater disturbance and improve the drainage efficiency of rainwater.

The rainwater drainage assembly also includes a brace 3, which is installed in the gutter 2 to support the cover; the arrangement of the brace 3 in the gutter 2 can improve the performance of the cover in collecting water. The installation strength in the ditch 2 prevents damage to the cover plate when the amount of rainwater is too large. The damage method is not limited to the pressure of the amount of rainwater and the impact of the potential energy of rainwater accumulation, which will not be described here. The support plate 3 can Arranged in the gutter 2 or arranged in the gutter 2 along the longitudinal direction or in the middle of the gutter 2, both can meet the function of supporting the cover plate, and the arrangement method to reduce the interference to the drainage is appropriate. This will not be repeated;

The bottom surface of the cover plate protrudes downward along the height direction to form a clamping block 11, and the top surface of the support plate 3 is recessed downward along the height direction to form a clamping groove 9, and the clamping block 11 and the clamping groove 9 are adapted, so The above-mentioned adaptation refers to the fit in size, that is, there is no gap or a very small gap after the block 11 and the slot 9 are matched, so that the cover plate is limited on the support plate 3 to prevent the cover plate from being placed on the gutter 2 The detachment on the top, through the cooperation between the setting block 11 and the slot 9, plays a role in positioning the auxiliary cover 4, which is convenient for quickly installing and dismounting the auxiliary cover 4 in a certain area. When installing the auxiliary cover 4 , it is only necessary to disengage the four blocks 11 at the bottom of the auxiliary cover 4 from the slots 9 on the support plate 3, and the end and tail of the auxiliary cover 4 are sequentially connected together to form a cover, which can effectively avoid the Displacement of the plate.

The supporting boards 3 in this solution are two correspondingly arranged on the lateral side walls of the gutter 2, and the two supporting boards 3 form supports for several auxiliary cover plates 4, and as shown in the figure, the auxiliary The cover plate 4 is a rectangle that is assembled on two support plates 3 at the end, and four blocks 11 are formed on each secondary cover plate 4 in a rectangular distribution, and the four blocks 11 are symmetrically distributed in the lateral direction at the bottom of the secondary cover plate 4 At both ends, the symmetry axis of the four blocks 11 is the central axis that divides the sub-cover 4 symmetrically through the lateral middle of the sub-cover 4 , and the corresponding two support plates 3 for installing the sub-cover 4 are also provided with The number of card slots 9 in one-to-one correspondence with the number of blocks 11 satisfies the stable installation of the auxiliary cover plate 4 on the support plate 3 and plays the role of effectively filtering water and blocking garbage.

The rainwater drainage assembly also includes a pressure relief pipe 8, which is installed on the side wall of the gutter 2 to communicate the gutter 2 with the preset environment. Of course, the pressure relief pipe 8 is installed in the gutter The side wall of 2 is also correspondingly pierced with the support plate 3 close to it, so that the pressure relief pipe 8 communicates the water collection ditch 2 with the preset environment, and the preset environment can be in the form of direct drainage of the external environment, or The form of the drainage pipe 7 connected to the ground drainage facility, etc., is advisable to speed up the discharge efficiency of rainwater in the gutter 2, so it will not be repeated here. Connected with the external environment, when the rainwater stored in the gutter 2 is too large to be discharged by the outlet 12, and the water level reaches the lowest point of the inlet end of the pressure relief pipe, it can be discharged through the bypass pressure relief pipe 8 to play a role The role of speeding up the rainwater discharge efficiency in the gutter 2; more clearly, when there is a heavy rainstorm, the drainage effect of the drainage pipe cannot be reduced, which will cause a large amount of water in the gutter 2. When the water in the gutter 2 When the accumulated water overflows the water inlet of the pressure relief pipe 8, the accumulated water in the water collection ditch 2 will flow outwards through the pressure relief pipe 8 in large quantities, thereby accelerating the drainage speed in the water collection ditch 2, which is beneficial to The decompression of the gutter 2 improves the drainage efficiency, avoids the accumulation of accumulated water on the bridge, and facilitates the passage of vehicles.

One end of the pressure relief pipe 8 near the gutter 2 is arranged with a filter screen cover 13, and the filter screen cover 13 has a filter hole 16 for rainwater to pass through; and through the setting of the filter screen cover 13, sundries can be effectively prevented Entering into the pressure relief pipe 8 to cause blockage, the arrangement of the filter screen cover 13 on the pressure relief pipe 8 can further filter the rainwater discharged by the pressure relief pipe 8, preventing debris and garbage that are larger than the size of the filter hole 16 from being The discharge of the pressure relief pipe 8 will cause danger. Further, the filter screen cover 13 is located in the water collection ditch 2 and installed at the water inlet end of the pressure relief pipe, which is beneficial to the installation of the overall structure. As shown in the figure, the filter screen cover 13 is sealed at one end The cylindrical shape, the opening of the cylindrical filter screen cover 13 is buckled and fixed on the water inlet end of the pressure relief pipe, which has the effect of protection, and at the same time expands the filtration area of the water inlet end of the pressure relief pipe to improve the discharge of rainwater discharged from the pressure relief pipe 8 efficiency.

The pressure relief pipe 8 is a straight-through pipe II. The meaning of the straight-through pipe II is that the structure of the pressure relief pipe 8 is a straight-through pipe structure, and any one of the prior art can be selected to achieve conduction. The purpose of the gutter 2 and the preset environment is appropriate, and will not be repeated here, to reduce the time for rainwater to circulate in the pressure relief pipe 8, and improve the efficiency of rainwater from the gutter 2 into the preset environment. 8 The end connected to the water collection ditch 2 is the inlet end of the pressure relief pipe, and the end of the pressure relief pipe 8 connected to the preset environment is the outlet end of the pressure relief pipe. In the height direction, the water inlet end of the pressure relief pipe is located at the discharge end The top of the water outlet end of the pressure pipe; further improving the drainage efficiency of the water collection ditch 2 by the pressure relief pipe 8.

The pressure relief pipes 8 are arranged at intervals along the length direction of the water collection ditch 2, and further a plurality of pressure relief pipes 8 are evenly distributed on the length direction of the water collection ditch 2, so as to improve the pressure of the water collection ditch 2 when the water level is high. drainage efficiency.

In this embodiment, the bottom surface of the water collection ditch slopes obliquely downward along the predetermined direction I, and the bottom surface of the water collection ditch 2 slopes obliquely downward toward the predetermined direction I along the length direction of the bridge body 1 . When the amount of rainwater is not enough to be discharged straight through the water filter sheet 10, the rainwater is collected in the gutter 2, and the bottom surface of the gutter 2 is set as an inclined surface, so that the rainwater in the gutter 2 flows from the high end to the bottom of the gutter 2. The other end of the lower part flows, so that the rainwater in the gutter 2 is in a flowing state, which is beneficial for the water flow on the gutter 2 to be discharged from the diversion pipe 5 arranged at the bottom into the header 6, and then pass through the header 6. The drainage pipe 7 is discharged into the ground drainage facilities; the setting of the inclined surface has enhanced the speed of the water flow and improved the impact force of the water flow. The debris rushes from the high end to the low end and gathers together, so that it is convenient to clean up the sundries in the gutter 2 later, improves the cleaning efficiency, and reduces the labor intensity of the workers. Through the setting of the water filter 10 , can effectively prevent debris from entering the guide pipe 5 and causing pipe blockage to occur.

In this embodiment, the rainwater drainage assembly also includes a header 6 connected to the bottom of the diversion pipe 5, and the header 6 is in the shape of a strip extending along the length direction of the bridge body 1, that is, the header 6 is along the Arranged in the extending direction of the bridge, the collecting pipe is inclined downward along the preset direction II, and the collecting pipe 6 is inclined downward along the length direction of the bridge body 1 toward the preset direction II. The preset direction I and the preset direction The direction II is set to be in the opposite direction; the preset direction I and the preset direction II are opposite in the length direction of the bridge body, which further satisfies the effectiveness of rainwater confluence in the gutter 2 and the efficiency of rainwater discharge in the collector pipe 6, Of course, when the collecting ditch is arranged obliquely on the bridge body, the collecting pipe is connected to it at the bottom of the collecting ditch. Blocking demand, no longer repeat them here;

There are a plurality of drain outlets 12, and a plurality of drain outlets 12 are arranged on the bottom surface of the gutter 2 along a predetermined direction I, and further, a plurality of drain outlets 12 are evenly arranged from high to low along a preset direction I, When the water flows from high to low on the bottom surface of the gutter 2, it passes through the arranged drainage outlets 12 in sequence;

The guide pipe 5 is a straight-through pipe I, which further improves the discharge efficiency through the gravitational potential energy of rainwater. The meaning of the straight-through pipe I is that the structure of the guide pipe 5 is a straight-through pipe structure. It is advisable to realize the purpose of connecting the drain outlet 12 and the guide pipe 5, so I won’t go into details here. The guide pipe 5 is vertically arranged to further improve the discharge efficiency of rainwater and reduce the rainwater in the guide pipe. The time of circulation in the pipe 5 improves the efficiency of rainwater being introduced into the collector pipe 6 by the drain port 12. The guide tube 5 is multiple, and the guide tube 5 and the drain port 12 are in a one-to-one correspondence. The guide tube 5 communicates with the header 6 .

In this embodiment, the high end of the collecting pipe 6 in the height direction is the far water end of the collecting pipe, and the low end of the collecting pipe 6 in the height direction is the near water end of the collecting pipe. The direction from the far water end of the collecting pipe to the near water end of the collecting pipe is the preset direction II; a plurality of diversion pipes 5 connect the corresponding drain outlets 12 to the collecting pipe 6 in turn, and the rainwater drainage assembly also includes The drain pipe 7 near the water end of the collecting pipe is used to drain the rainwater in the gutter 2 into the ground drainage facilities. As shown in the figure, the drain pipe 7 is hidden near the collecting pipe near the water. The end supports the main support beam 17 supporting the bridge deck. Furthermore, the drain pipe 7 extends from bottom to top along the main support beam 17 and bends toward the near water end of the collecting pipe to communicate with the collecting pipe 6, so as to play a role in corresponding drainage. At the same time, it can also satisfy the aesthetics of the structure.

The collecting pipe 6 is arranged obliquely, and the inclined direction of the collecting pipe 6 is opposite to that of the bottom surface of the water collecting ditch 2. The height of one end of the collecting pipe 6 connected to the drain pipe 7 is lower than the height of the other end. Setting the collecting pipe 6 obliquely speeds up the speed of the water flow in the collecting pipe 6 and improves the impact force of the water flow, so that the sediment and dust are not easy to deposit in the pipeline under the impact of the water flow in the pipeline, so that the pipeline is unblocked;

The high end of the bottom surface of the water collecting ditch 2 in the height direction is the far water end of the water collecting ditch, and the low end of the bottom surface of the water collecting ditch 2 in the height direction is the near water end of the water collecting ditch. The direction from the far water end of the ditch to the near water end of the catchment ditch is the preset direction I;

The far water end of the collecting pipe is located at the inner bottom of the near water end of the collecting ditch, so that there is a gap between the far water end of the collecting pipe and the near water end of the collecting ditch arranged outside the near water end of the collecting pipe along the preset direction I. The rectification section, the inner is the direction close to the longitudinal middle of the bridge in the longitudinal direction, and the outer and inner directions are opposite in the longitudinal direction, so that the rainwater flowing along the preset direction I gathers and the rainwater flowing along the preset direction II The collection direction is opposite, which is conducive to the discharge in this drainage system when the amount of rainwater is large;

When the rainwater collects in the gutter 2, since the bottom surface of the gutter 2 is arranged obliquely, the water filter sheet 10 that is located at the bottom surface of the gutter 2 and closes the drain 12 is used so that the water flow can flow along the preset direction I, During the confluence process, due to the density, the sand and stones at the bottom of the drainage ditch and other particulate sediments that can pass through the water filter will be discharged into the header 6 through the water filter on the water filter 10. The granular sediments are generally mud, sand, Stones and gravel, etc., particle sediments that cannot pass through the water outlet, sundries mixed in rainwater, and floating objects will be pushed to the rectification section by the potential energy generated by the collection of rainwater at the bottom of the inclined gutter 2; the inner side of the rectification section is At the far water end of the collecting pipe 6, the collecting pipe 6 is arranged along the predetermined direction II opposite to the predetermined direction I, which further improves the impact force of the rainwater when it flows from high to low in the water collecting ditch 2, and in the water collecting The lowest part of the ditch 2 gathers large particles of sediment, sundries mixed in rainwater, and floating objects in the rectification section, which is conducive to later cleaning, and can also reduce the blockage of the diversion pipe 5 and the header pipe 6. The rainwater in the flow pipe 6 is collected and discharged to the drain pipe 7 along the preset direction II to the ground drainage facility. At this time, the rainwater flows from the high end of the water collection pipe to the other low end, so that the rainwater in the flow pipe 6 is in a flow state. state, it is beneficial for the water flow in the collecting pipe 6 to be discharged into the drain pipe 7; the setting of the inclined collecting pipe 6 arranged in the opposite direction to the preset direction I increases the speed of the water flow and improves the impact force of the water flow. During the flow of water in the collecting pipe 6, the particulate sediment in the collecting pipe 6 can be flushed from the high end to the low other end to be discharged, thereby reducing the blockage of the collecting pipe 6 and improving the efficiency of the entire drainage system. It has been improved, and the occurrence of blockages in the corresponding pipelines can be greatly reduced during the rainwater discharge process, and it is also conducive to the cleaning of debris in the gutter 2. The gravity potential energy of rainwater combined with the specific rainwater discharge structure improves the flow of rainwater on bridges. It is a structural layout that can meet the needs of the current environment.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.

Claims (10)

1. A rainwater drainage system for a bridge, characterized in that: it comprises a bridge body and a rainwater drainage assembly, and the rainwater drainage assembly includes a gutter for collecting accumulated water on the bridge body and a drain for collecting water in the gutter. A diversion pipe for discharging accumulated water, the gutter has a ditch opening at the top of the gutter and a drain outlet at the bottom of the gutter, the ditch is closed by a cover plate, and the cover plate has a water leakage port, The water leakage port is arranged on the cover plate, and the diversion pipe communicates with the gutter through the drain port; The rainwater drainage assembly also includes a pressure relief pipe, and the pressure relief pipe is installed on the side wall of the gutter to communicate the gutter with the preset environment; The water collection ditch is arranged at one end of the bridge body in the transverse direction, and the bottom surface of the water collection ditch is inclined downward along the preset direction I; The rainwater drainage assembly also includes a collecting pipe connected to the bottom of the diversion pipe, the collecting pipe is in the shape of a strip extending along the length direction of the bridge body, and the collecting pipe is inclined downward along the preset direction II, so The aforementioned preset direction I and preset direction II are in opposite directions. 2. The rainwater drainage system for bridges according to claim 1, characterized in that: the gutter is in the shape of a strip extending along the length direction of the bridge body, and the rainwater drainage components are respectively arranged in the transverse direction of the bridge body Two groups on either side of the middle. 3. The rainwater drainage system for bridges according to claim 1, characterized in that: there are multiple drainage outlets, and the plurality of drainage outlets are arranged on the bottom surface of the gutter along the preset direction I; The diversion pipe is a straight-through pipe I, and there are multiple diversion pipes. The diversion pipes are in one-to-one correspondence with the drain outlets, and the plurality of diversion pipes communicate with the header. 4. The rainwater drainage system for bridges according to claim 1, characterized in that: the high end of the collecting pipe in the height direction is the far water end of the collecting pipe, and the low end of the collecting pipe in the height direction One end is the near water end of the collecting pipe; The higher end of the bottom of the gutter in the height direction is the far water end of the gutter, and the lower end of the bottom of the gutter in the height direction is the near water end of the gutter; The far water end of the collecting pipe is located on the inner side of the near water end of the collecting ditch, so that there is a gap between the far water end of the collecting pipe and the near water end of the collecting ditch arranged outside the near water end of the collecting pipe along the preset direction I. rectification section. 5. The rainwater drainage system for bridges according to claim 1, characterized in that: the water outlet is closed by a water filter, the water filter has a water filter, and the water filter is arranged on the water filter of multiple. 6 . The rainwater drainage system for bridges according to claim 5 , characterized in that: the diameter of the water filter opening is smaller than the diameter of the water leakage opening. 6 . 7. The rainwater drainage system for bridges according to claim 1, characterized in that: a filter screen cover is arranged on the end of the pressure relief pipe close to the gutter, and the filter screen cover has a filter screen for rainwater to pass through. hole. 8. The rainwater drainage system for bridges according to claim 1, characterized in that: the pressure relief pipe is a straight-through pipe II, and the end of the pressure relief pipe connected to the gutter is the water inlet end of the pressure relief pipe, The end of the pressure relief pipe connected to the preset environment is the outlet end of the pressure relief pipe, and in the height direction, the water inlet end of the pressure relief pipe is located on the top of the water outlet end of the pressure relief pipe. 9. The rainwater drainage system for bridges according to claim 1, characterized in that: the rainwater drainage assembly further comprises a support plate, and the support plate is installed in the gutter to form a support for the cover plate. 10. The rainwater drainage system for bridges according to claim 9, characterized in that: the bottom surface of the cover plate protrudes downward along the height direction to form a block, and the top surface of the brace plate goes downward along the height direction The depression forms a card slot, and the card block fits with the card slot so that the cover plate is limited on the support plate.

Images