Drainage device for bridge and culvert channel

Abstract

The utility model discloses a drainage device for a bridge and culvert channel, and particularly relates to the technical field of bridge and culvert drainage. The water draining strainers are arranged on the two sides of the bridge and culvert; the sewer pipe is obliquely arranged at the bottom of the bridge and culvert and is communicated with the sewer grate; the bottom surface of the mud settling part is lower than the lowest point of the sewer pipe; and the spiral scraper blade is rotationally arranged in the sewer pipe and is used for pushing sediments to the mud settling part. According to the drainage device for the bridge and culvert channel, the inner wall of the sewer pipe is scraped through the spiral scraping plate, settled sludge is scraped, the scraped sludge is conveyed along the spiral face of the spiral scraping plate through the spiral scraping plate in the rotating state, sediments originally deposited on the inner wall of the sewer pipe are gathered towards a sludge settling part, and due to the fact that the sediments have viscosity, the sediments can be separated from the inner wall of the sewer pipe. Sludge is agglomerated at the sludge settling part, so that the probability of blocking the sewer pipe is reduced, and unified cleaning is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge culvert water technology field, concretely related to a bridge culvert passageway drainage device. BACKGROUND

[0002] The drainage device of the bridge culvert passageway is mainly used for draining rainwater, snowmelt water and other water bodies, to ensure the safety and service life of the bridge culvert structure, and a drainage pipeline is usually arranged to rapidly drain the accumulated water and avoid damaging the structure.

[0003] In combination with the disclosure (announcement) No. CN220550464U, the disclosure (announcement) date is March 1, 2024, a kind of bridge culvert passageway is rapidly guided water device, including drainage seat, the drainage seat is evenly arranged at the both sides of bridge culvert pavement, and the side of drainage seat is provided with ladder platform, the side of ladder platform towards drainage seat is provided with several water guide grooves, and auxiliary shell is embedded and installed in the inside of ladder platform, the auxiliary shell is fixedly connected with ladder platform, the upper end surface of ladder platform is also provided with drainage groove.

[0004] But in the prior art including the above patent, the silt mixed in the road accumulated water can enter the ladder platform along the drainage groove, and then mix into the sewer pipe, which can form a mud block on the pipe wall and easily form a blockage after air drying. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of bridge culvert passageway drainage device, to solve the above problems.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme: a kind of bridge culvert passageway drainage device, including bridge culvert;

[0007] Drainage grate is arranged at the both sides of bridge culvert;

[0008] Inclinedly arranged in the bottom of bridge culvert and communicated with drainage grate sewer pipe;

[0009] Mud depositing part for containing sediment, the bottom surface is lower than the lowest point of sewer pipe;

[0010] Spiral scraper is rotatably arranged in sewer pipe and used to push sediment to mud depositing part.

[0011] As preferred, it further includes inspection well arranged on sewer pipe, the top surface is at the same height with the bottom surface of bridge culvert, and observation window is arranged on the top surface.

[0012] As preferred, the spiral scraper is arranged in the inspection well.

[0013] As preferred, it further includes impeller for driving spiral scraper to rotate.

[0014] As preferred, the helical scraper is provided with a plurality of supporting rods for winding sundries in a circumferential array.

[0015] As preferred, the helical scraper is slidably assembled with the supporting rods through a key groove.

[0016] As preferred, a converging opening is further provided along the length direction of the sewer pipe, which has a narrow opening.

[0017] As preferred, a suction opening is further provided in the sedimentation part.

[0018] As preferred, a suction pipe is communicated with the suction opening, and the end of the suction pipe is arranged towards the narrow opening.

[0019] As preferred, the inner diameter of the suction opening decreases along the water flow direction, and the wide bottom surface is flush with the bottom surface of the sedimentation part.

[0020] In the above technical solution, the drainage device for bridge and culvert passage has the following beneficial effects: the helical scraper scrapes the deposited sludge on the inner wall of the sewer pipe, the helical scraper in the rotating state transports the scraped sludge along the helical surface of the helical scraper, so that the deposited matter originally deposited on the inner wall of the sewer pipe is gathered to the sedimentation part, and due to the viscosity between the sediments, the sediments are gathered in the sedimentation part to reduce the plugging probability of the sewer pipe, and the cleaning is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0022] Figure 1 The overall three-dimensional schematic view provided by the embodiment of the present application;

[0023] Figure 2 The sewer grate and sewer pipe structure schematic view provided by the embodiment of the present application;

[0024] Figure 3 The inspection well cross-sectional structure schematic view provided by the embodiment of the present application;

[0025] Figure 4 The impeller and supporting rod structure schematic view provided by the embodiment of the present application.

[0026] Explanation of reference signs:

[0027] 1, bridge; 2, sewer pipe; 3, sewer grate; 4, observation window; 5, inspection well; 6, impeller; 61, spiral scraper; 62, support rod; 63, assembly ring; 7, converging port; 71, narrow port; 8, sedimentation section; 9, suction port; 91, suction pipe. DETAILED DESCRIPTION

[0028] In order for those skilled in the art to better understand the technical scheme of the present application, the present application will be further described in detail below with reference to the drawings.

[0029] As shown in the drawings, a bridge culvert passage drainage device, comprising a bridge culvert 1; Figures 1-4 A sewer grate 3 is arranged on both sides of the bridge culvert 1.

[0030] A sewer pipe 2 is arranged at the bottom of the bridge culvert 1 and is in communication with the sewer grate 3.

[0031] A sedimentation section 8 is used to contain sediments, and the bottom surface is lower than the lowest point of the sewer pipe 2.

[0032] A spiral scraper 61 is rotatably arranged in the sewer pipe 2 and is used to push the sediments towards the sedimentation section 8.

[0033] Specifically, the bottom of the bridge culvert 1 is inclined to both sides with the center line as the highest point, so that the accumulated water automatically flows to both sides under the influence of gravity. The accumulated water enters the sewer pipe 2 through the sewer grate 3, and larger debris such as stones are intercepted on the top side by the sewer grate 3.

[0034] Further, the spiral scraper 61 can be driven to rotate by a driving motor or a worm gear and worm shaft rotary drive, and the outer wall of the spiral scraper 61 is limited by the inner wall of the sewer pipe 2 to shrink towards the shaft, so that the spiral scraper 61 scrapes the inner wall of the sewer pipe 2 to scrape up the deposited sludge. The spiral scraper 61 in the rotating state transports the scraped sludge along the spiral surface of the spiral scraper 61, and the transport direction is towards the sedimentation section 8, so that the originally deposited sediments in the inner wall of the sewer pipe 2 are gathered towards the sedimentation section 8. Since the sediments have adhesion between each other, the sediments are gathered in the sedimentation section 8 to reduce the probability of blocking the sewer pipe 2, and it is convenient to clean up uniformly.

[0035] In the above technology, the spiral scraper 61 scrapes the inner wall of the sewer pipe 2 to scrape up the deposited sludge, and the spiral scraper 61 in the rotating state transports the scraped sludge along the spiral surface of the spiral scraper 61, so that the originally deposited sediments in the inner wall of the sewer pipe 2 are gathered towards the sedimentation section 8. Since the sediments have adhesion between each other, the sediments are gathered in the sedimentation section 8 to reduce the probability of blocking the sewer pipe 2, and it is convenient to clean up uniformly.

[0036]

[0037] ​As a further provided embodiment of the utility model, further include the inspection well 5 set up on the sewer pipe 2, its top surface is with the bridge culvert 1 bottom surface same height, and the top surface is provided with the observation window 4.

[0038] Specifically, the inspection well 5 is arranged at the middle of the bridge culvert 1, and the sedimentation part 8 is arranged at the bottom of the inspection well 5, when dredging is needed, the staff only needs to open the observation window 4 to clean the sedimentation part 8, and when daily maintenance is needed, the inside of the inspection well 5 can be checked through the observation window 4, so that the garbage that is difficult to degrade can be easily identified and removed in time.

[0039] As a further provided embodiment of the utility model, the spiral scraper 61 is arranged through the inspection well 5.

[0040] Specifically, the spiral scraper 61 rotates to drive the water flow to form a small vortex, so as to increase the flow rate of the water flow at the sedimentation part 8, and reduce the thickness of the sediment by water flow scouring. When the spiral scraper 61 needs to be maintained, it only needs to be opened by the observation window 4, without the need for staff to go down to disassemble, which is beneficial to long-term use.

[0041] As a further provided embodiment of the utility model, further include the impeller 6 for driving the spiral scraper 61 to rotate.

[0042] Specifically, the inspection well 5 is arranged at the side of the flow direction, and the assembly ring 63 is arranged at the side of the flow direction, the assembly ring 63 can be detachably assembled by bolts or flanges, the impeller 6 is rotatably arranged on the assembly ring 63, and the spiral scraper 61 is fixedly arranged on the impeller 6. The water flow in the sewer pipe 2 will impact the impeller 6 and drive the impeller 6 to rotate, thereby driving the spiral scraper 61 to rotate, and the rotation speed of the impeller 6 is related to the flow rate of the water flow, when the water flow is large, the rotation speed of the impeller 6 is fast, so that the cleaning efficiency of the spiral scraper 61 on the inner wall of the sewer pipe 2 is higher, and the sewer pipe 2 is prevented from being blocked when the flow is large, so that the sewage overflows into the bridge culvert 1.

[0043] As a further provided embodiment of the utility model, a plurality of support rods 62 for winding sundries are arranged on the spiral scraper 61 in a circumferential array.

[0044] Specifically, the support rod 62 can form a nearly cylindrical stable structure with the spiral scraper 61, so that the spiral scraper 61 maintains the abutting state on the inner wall of the sewer pipe 2, thereby always rubbing the inner wall of the sewer pipe 2, and at the same time, the spiral scraper 61 drives the support rod 62 to rotate during rotation, and the vortex generated by rotation throws sundries away from the spiral scraper 61 by centrifugal force, and finally converges in the sedimentation part 8 under the action of gravity, so that the center of the water flow is relatively clean, and the probability of blockage is reduced. Flexible sundries such as plastic bags will be wound during the rotation of the support rod 62, and only the spiral scraper 61 and the support rod 62 need to be cleaned by opening the observation window 4 when cleaning is needed.

[0045] As further provided by the utility model, the spiral scraper 61 and the supporting rod 62 are assembled through a key groove.

[0046] Specifically, the spiral scraper 61 has elasticity in the axial direction due to its structure, so that the spiral scraper 61 is retracted along the supporting rod 62, and the pitch is in a changing state. When the resistance of the sundries on the inner wall of the sewer pipe 2 to the spiral scraper 61 is large, the spiral scraper 61 will be elongated and the elastic force will be increased. After the sundries are scraped off, the resistance is lost, so that the elastic force of the spiral scraper 61 is released and retracted. This process makes the sludge on the spiral scraper 61 be shaken off and slide along the supporting rod 62, thereby achieving the effect of self-cleaning.

[0047] As further provided by the utility model, the sewer pipe 2 further comprises a converging opening 7 arranged along the length direction of the sewer pipe 2, which has a narrow opening 71.

[0048] Specifically, the inner diameter of the converging opening 7 decreases along the water flow direction to form the narrow opening 71 at the port. Since the sewer pipe 2 is arranged obliquely, the direction from the high position of the sewer pipe 2 to the low position is the water flow direction. When the water flow passes through the converging opening 7, the flow rate gradually increases, and the flow rate is the largest at the narrow opening 71 and has a certain impact force. In combination with the arrangement of the spiral scraper 61, the water flow at the center of the sewer pipe 2 is relatively clean. Therefore, although the cross section of the narrow opening 71 is small, the water flow at the center is clean and has a large impact force, so it is difficult to be blocked by sludge.

[0049] As further provided by the utility model, the sewer pipe 2 further comprises a suction opening 9 arranged in the sludge settling part 8.

[0050] Specifically, the suction opening 9 can be suctioned by a sludge suction pump, or be suctioned by a negative pressure mechanism by a cleaning personnel, or be suctioned by other suction methods known to those skilled in the art. Since the sludge has viscosity between each other, the sludge gathers in the sludge settling part 8, and the sludge settling part 8 forms a layered state from top to bottom. In combination with the suction opening 9, the lower layer of sludge is discharged without interfering with the upper layer of relatively clean water flow.

[0051] As further provided by the utility model, the suction opening 9 is connected with a suction pipe 91, and the end of the suction pipe 91 is arranged towards the narrow opening 71.

[0052] Specifically, during the drainage process, when the water flow passes through the converging opening 7, the flow rate of the water flow increases due to the decrease in the cross section. The dynamic pressure increases, and the static pressure inside the narrow opening 71 decreases at the same time, so that a low-pressure area is generated at the narrow opening 71. The low-pressure area actively sucks the inside of the suction pipe 91, and in combination with the suction opening 9, the sludge is suctioned to the narrow opening 71. Subsequently, the water flow has a large impact force under the convergence of the narrow opening 71, and the water flow scatters the gathered sludge to avoid blockage, thereby improving the drainage efficiency and reducing the cleaning difficulty.

[0053] As further provided by the utility model, the inner diameter of the suction port 9 decreases along the water flow direction, and the wide bottom surface is flush with the bottom surface of the sludge portion 8.

[0054] Specifically, the suction port 9 is in the shape of a trumpet mouth, and the bottom surface of the sludge portion 8 is at the lowest point. The sludge is collected in the sludge portion 8 under the action of gravity and is then sucked, as shown in the figure. Figure 3 The height of the suction port 9 is lower than that of the suction pipe 91, so that when the accumulated water in the sewer pipe 2 is less, the sludge in the sludge portion 8 will not enter the sewer pipe 2 along the suction pipe 91 to cause pollution in the pipe wall. Only when the water flow is large, the sludge is discharged, and the sludge under the large water flow is difficult to stay in the inner wall of the sewer pipe 2, further avoiding the pollution of the pipe wall.

[0055] Working principle: the accumulated water enters the sewer pipe 2 through the sewer grate 3, and larger debris such as stones is intercepted on the top side by the sewer grate 3. The water flow in the sewer pipe 2 will impact the impeller 6 and drive the impeller 6 to rotate, thereby driving the spiral scraper 61 to rotate.

[0056] The spiral scraper 61 has elasticity in the axial direction due to its structure, so that the spiral scraper 61 will slide and contract along the support rod 62, so that the pitch is in a changing state. When the resistance of the debris on the inner wall of the sewer pipe 2 to the spiral scraper 61 is large, the spiral scraper 61 will be elongated and the elastic force will be increased. After the debris is removed, the resistance is lost, so that the elastic force of the spiral scraper 61 is released and contracted. This process causes the sludge on the spiral scraper 61 to be shaken off and slide along the support rod 62. The vortex generated by rotation will throw the debris away from the spiral scraper 61 by centrifugal force, and finally gather in the sludge portion 8 under the action of gravity. The water flow at the center is relatively clean, and the probability of blockage is reduced. Flexible debris such as plastic bags will be wound during the rotation of the support rod 62. When cleaning is needed, the spiral scraper 61 and the support rod 62 can be cleaned by opening the observation window 4.

[0057] When the water flow passes through the converging port 7, the flow rate of the water flow increases due to the decrease in cross-sectional area. The dynamic pressure increases, and the static pressure inside the narrow port 71 decreases at the same time, so that a low-pressure area is generated at the narrow port 71. The low-pressure area will actively suck the suction pipe 91, and then the sludge will be sucked to the narrow port 71 by the suction port 9. Subsequently, the water flow impact force is large under the convergence of the narrow port 71, and the water flow will disperse the agglomerated sludge to avoid blockage.

[0058] When the accumulated water in the sewer pipe 2 is less, the sludge in the sludge portion 8 will not enter the sewer pipe 2 along the suction pipe 91 to cause pollution in the pipe wall. Only when the water flow is large, the sludge is discharged, and the sludge under the large water flow is difficult to stay in the inner wall of the sewer pipe 2, further avoiding the pollution of the pipe wall.

[0059] The above has only described certain exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above drawings and descriptions are illustrative in nature, and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A drainage device for a bridge approach, characterized by, The utility model relates to a bridge culvert (1) for sewage treatment. A sewage grate (3) is arranged on both sides of the bridge culvert (1). A sewage pipe (2) is arranged on the bottom of the bridge culvert (1) and is in communication with the sewage grate (3). A sludge part (8) is arranged for containing the sludge, and the bottom surface of the sludge part (8) is lower than the lowest point of the sewage pipe (2). A spiral scraper (61) is arranged in the sewage pipe (2) and is used for pushing the sludge to the sludge part (8).

2. The bridge culvert passage drainage device according to claim 1, wherein An inspection well (5) is arranged on the sewage pipe (2), and the top surface of the inspection well (5) is at the same height as the bottom surface of the bridge culvert (1), and an observation window (4) is arranged on the top surface of the inspection well (5).

3. The bridge culvert passage drainage device according to claim 2, characterized by The spiral scraper (61) is arranged in the inspection well (5).

4. The bridge culvert passage drainage device according to claim 1, wherein A vane (6) is arranged for driving the spiral scraper (61) to rotate.

5. The bridge culvert passage drainage device according to claim 1, wherein A plurality of support rods (62) for winding sundries are arranged on the spiral scraper (61) in a circumferential array.

6. The bridge culvert drainage system of claim 5, wherein, The spiral scraper (61) and the support rod (62) are slidably assembled through a key groove.

7. The bridge culvert passage drainage device according to claim 1, wherein A narrow opening (7) is arranged along the length direction of the sewage pipe (2).

8. The bridge culvert passage drainage device according to claim 1, wherein A suction port (9) is arranged in the sludge part (8).

9. The bridge culvert drainage system of claim 8, wherein, A suction pipe (91) is in communication with the suction port (9), and the end of the suction pipe (91) is arranged towards the narrow opening (7).

10. The bridge culvert drainage system of claim 8, wherein, The inner diameter of the suction port (9) decreases along the water flow direction, and the bottom surface of the wide part is flush with the bottom surface of the sludge part (8).

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