Anti-leakage water collecting and draining structure at end part of water draining pipe for bridge

By installing a drainage collection device at the end of the bridge's drainage pipe and using flanges, rubber waterproof gaskets, and sealant to form a slope structure, the problem of water seepage between the bridge's drainage pipe and the beam was solved, improving the structural safety and durability of the bridge. Moreover, the construction is simple and cost-effective.

CN223880192UActive Publication Date: 2026-02-06SHANDONG TRAFFIC PLANNING DESIGN INST
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Patent Information

Application Number
CN202520200447.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2026-02-06
Estimated Expiration
2035-02-08

AI Technical Summary

Technical Problem

Water seepage between the bridge drainage pipe and the beam structure, especially the chloride ion water from de-icing agents in winter, corrodes the bridge structure, causing concrete cracking and steel corrosion, affecting structural safety and durability.

Method used

A drainage collection device is installed at the end of the drain pipe. A sloping structure is formed using flanges, rubber waterproof gaskets, and sealant. The device is fixed to the beam plate by flanges and sealed with polysulfide anti-corrosion sealant. The drainage collection device is made of PVC-U material, which is easy to construct.

Benefits of technology

It effectively prevents water seepage from eroding the superstructure, improves the safety and durability of the bridge structure, is easy to construct and has a low project cost, and does not change the existing drainage pipe structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bridge drain pipe end anti-seepage water collecting and draining structure which comprises a water collecting and draining device, the water collecting and draining device is of a pipe fitting structure, a flange plate is arranged at one end of the water collecting and draining device, and the end, provided with the flange plate, of the water collecting and draining device is arranged outside a drain pipe water outlet in a sleeved mode and fixed to a beam plate through the flange plate. A rubber waterproof gasket is arranged between a flange plate of the water collecting and draining device and a beam plate, the contact positions of the flange plate, the beam plate and the rubber waterproof gasket are evenly coated with sealant, the inner circumferential surface of the rubber waterproof gasket is coated with the sealant, and a slope is formed between the beam plate and the inner circumferential surface of the flange plate; seeped water in the gap between the water drain pipe and the beam body is drained through the anti-seepage water collecting and draining structure, the upper structure can be prevented from being eroded by the seeped water, and structural safety and durability are improved. The structure does not change the structure of the existing drain pipe, is suitable for drain pipes in various shapes, and is simple and convenient to construct and low in construction cost.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to bridge drainage device technical field, concretely relates to a bridge drainage pipe end anti -percolation water collecting and draining structure. BACKGROUND

[0002] The statements herein merely provide background information related to the utility model and do not necessarily constitute the prior art.

[0003] The function of bridge drainage pipe is mainly to drain the water on the bridge deck and the interlayer water in the bridge deck pavement to the bridge below in time to ensure the safety of driving on the bridge deck and prevent the water on the bridge deck and the interlayer water from eroding the superstructure of the bridge. SUMMARY

[0004] The utility model discloses a bridge drainage pipe end anti -percolation water collecting and draining structure can prevent the percolation of water from eroding the superstructure, improve the structural safety and durability, in addition, the structure does not change the existing drainage pipe structure, is applicable to various shapes drainage pipe, and construction is simple, and the project cost is low.

[0005] In order to realize the above-mentioned purpose, the utility model is through the following technical scheme to realize:

[0006] First, the utility model discloses an embodiment provides a bridge drainage pipe end anti -percolation water collecting and draining structure, including water collecting and draining device, the water collecting and draining device is pipe fitting structure and is provided with flange plate in one end, and the one end of water collecting and draining device with flange plate is set up in the outside of drainage pipe water outlet, and is fixed on the beam plate through flange plate, the flange plate of water collecting and draining device with the beam plate between setting rubber waterproof washer, the position of flange plate, beam plate and rubber waterproof washer between contact evenly daub sealant, the inner circumferential surface of rubber waterproof washer daub sealant, make the beam plate and the inner circumferential surface of flange plate form slope.

[0007] As a further technical scheme, a plurality of reserved holes are arranged on the flange plate, and the flange plate is fixed on the beam plate by penetrating the reserved holes through the fixed cannon nail.

[0008] As a further technical scheme, the thickness of the fixed cannon nail extending into the beam plate is not less than 30mm.

[0009] As a further technical scheme, the thickness of the sealant applied to the position where the flange plate, the beam plate and the rubber waterproof gasket contact is not less than 5mm.

[0010] As a further technical scheme, the sealant is polythiophene corrosion-resistant sealant.

[0011] As a further technical scheme, when the drain pipe is vertically arranged, the water collecting and draining device adopts a pipe with a circular cross section, and the inner diameter of the water collecting and draining device is greater than the outer diameter of the drain pipe.

[0012] As a further technical scheme, when the drain pipe is horizontally arranged, the water collecting and draining device adopts an L-shaped pipe with a rectangular cross section.

[0013] As a further technical scheme, a plurality of anchor holes are arranged on the flange plate of the water collecting and draining device, and the flange plate is fixed on the beam plate through the anchors.

[0014] As a further technical scheme, when the mounting surface of the flange plate is an inclined surface, the leveling is performed through cement mortar.

[0015] As a further technical scheme, the water collecting and draining device is made of hard polyvinyl chloride material.

[0016] The beneficial effects of the above-mentioned embodiments of the utility model are as follows:

[0017] The bridge drain pipe end anti-seepage water collecting and draining structure provided by the utility model can make the seepage water between the existing drain pipe and the beam body discharge from the water collecting and draining device through the slope surface, can prevent the seepage water from eroding the upper structure, and improves the structural durability; compared with the conventional replacement of the drain pipe, the water collecting and draining device is installed at the end of the drain pipe, the existing drain pipe structure does not need to be changed, the construction is more convenient, the anti-seepage effect is good, and the engineering cost is low.

[0018] The bridge drain pipe end anti-seepage water collecting and draining structure provided by the utility model uniformly applies sealant to the positions where the flange plate, the beam plate and the rubber waterproof gasket contact, applies the sealant to the inner circumferential surface of the rubber waterproof gasket, forms a slope surface between the beam plate and the inner circumferential surface of the flange plate, the polythiophene corrosion-resistant sealant has the properties of oil resistance, water resistance, aging resistance and corrosion resistance, has good bonding effect on materials such as concrete and PVC material, avoids the cracking of the bonding position caused by vibration, and prevents the gap seepage water from eroding the beam body.

[0019] The bridge drain pipe end anti-seepage water collecting and draining structure provided by the utility model adopts vertical bending for the water collecting and draining device at the end of the horizontal drain pipe, can avoid the bridge surface water from being drained to the land outside the highway, and solves the problem that the water is washed to the ground when the horizontal drain pipe of the bridge has a large amount of rain. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings constituting a part of the present application are used to provide further understanding of the present application, the schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application.

[0021] Figure 1 is a schematic view of the bridge drain pipe end anti-seepage water collecting and draining structure of the embodiment 1 of the present application;

[0022] Figure 2 is a top view of the anti-seepage water collecting and draining of the embodiment 1 of the present application;

[0023] Figure 3 is a front view of the anti-seepage water collecting and draining of the embodiment 1 of the present application;

[0024] Figure 4 is Figure 1 is a local enlarged schematic view of A in the middle;

[0025] Figure 5 is a schematic view of the bridge drain pipe end anti-seepage water collecting and draining structure of the embodiment 2 of the present application;

[0026] Figure 6 is a schematic view of the bridge drain pipe end anti-seepage water collecting and draining structure of the embodiment 3 of the present application;

[0027] Figure 7 is a front view of the anti-seepage water collecting and draining of the embodiment 2 and the embodiment 3 of the present application;

[0028] Figure 8 is a top view of the anti-seepage water collecting and draining of the embodiment 2 and the embodiment 3 of the present application;

[0029] Figure 9 is Figure 5 is a local enlarged schematic view of B in the middle and Figure 6 is a local enlarged schematic view of C in the middle.

[0030] The schematic view is only used for illustration;

[0031] Wherein, 1, concrete leveling layer; 2, asphalt bridge deck pavement; 3, drain pipe; 4, fixed stud; 5, water collecting and draining device; 501, flange plate; 502, reserved hole; 6, sealing glue; 7, main beam; 8, rubber waterproof gasket; 9, asphalt concrete; 10, thick concrete pavement; 11, corrugated guardrail; 12, wall guardrail; 13, cement mortar; 14, anchor bolt hole. DETAILED DESCRIPTION

[0032] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as those commonly understood by one of ordinary skill in the art to which the present application pertains.

[0033] Embodiment 1

[0034] In a typical embodiment of the present application, as shown in Figures 1 to 4 A bridge water drain pipe end anti-seepage water collecting and draining structure is provided, which comprises a water collecting and draining device 5, the water collecting and draining device 5 is a pipe structure and is provided with a flange plate 501 at one end, the end of the water collecting and draining device 5 with the flange plate 501 is sleeved outside the water outlet of the water drain pipe 3, and is fixed on the beam plate through the flange plate 501; a rubber waterproof gasket 8 is arranged between the flange plate 501 of the water collecting and draining device 5 and the beam plate, the positions of the flange plate 501, the beam plate and the rubber waterproof gasket 8 in contact are uniformly coated with sealant 6, and the inner circumferential surface of the rubber waterproof gasket is coated with sealant 6, so that a slope surface is formed between the beam plate and the inner circumferential surface of the flange plate 501.

[0035] In the present embodiment, a plurality of reserved holes 502 are arranged on the flange plate 501, and the flange plate 501 is fixed on the beam plate through the fixed studs 4 passing through the reserved holes; further, the fixed studs 4 extend into the beam plate by not less than 30 mm in thickness, so as to ensure the stability of the installation of the water collecting and draining device.

[0036] In the present embodiment, the thickness of the sealant 6 coated at the positions of the flange plate 501, the beam plate and the rubber waterproof gasket 8 in contact is not less than 5 mm, the sealant is polythiourethane corrosion-resistant sealant, and the sealant is used to ensure the sealing property of the positions of the flange plate 501, the beam plate and the rubber waterproof gasket 8 in contact. Further, the sealant 6 is coated on the inner circumferential surface of the rubber waterproof gasket, so that a slope surface is formed between the beam plate and the inner circumferential surface of the flange plate 501, so that the rainwater seeping from the gap between the water drain pipe and the beam body can enter the water collecting and draining device through the slope surface and be drained.

[0037] As shown in Figures 1-4 The main beam 7 is provided with a concrete leveling layer 1, and the asphalt bridge deck 2 is paved on the upper surface of the concrete leveling layer 1, at this time, the water drain pipe 3 is vertically arranged, the water collecting and draining device 5 is a pipe with a circular cross section, and the inner diameter of the water collecting and draining device 5 is greater than the outer diameter of the water drain pipe.

[0038] In the installation of the water collecting and draining device 5, the water collecting and draining device with a larger diameter than the hole diameter is arranged at the end of the existing vertical drain pipe, the water collecting and draining device is made of PVC-U material, the water collecting and draining device is fixed to the bottom surface of the main beam by using the cannon bolt, the cannon bolt penetrates into the concrete by not less than 30mm, the rubber waterproof gasket with a thickness of 8mm is arranged between the flange plate of the water collecting and draining device and the bottom surface of the box girder wing, the polysulfide anticorrosive sealant is evenly coated on the contact position of the bottom of the beam wing, the flange plate of the water collecting and draining device and the rubber waterproof gasket, the coating thickness is not less than 5mm, the flange part of the water collecting and draining device is pressed to make the sealant overflow, the polysulfide anticorrosive sealant is coated on the contact position between the top of the water collecting and draining device and the beam wing after the fixing, the coating height of the sealant should be higher than the top of the flange, so that a triangular slope is formed, and the rainwater can flow downward.

[0039] Embodiment 2

[0040] In a typical embodiment of the utility model, a bridge water drain pipe end anti-seepage water collecting and draining structure is provided, which comprises a water collecting and draining device 5, the water collecting and draining device 5 is a pipe structure and is provided with a flange plate 501 at one end, one end of the water collecting and draining device 5 with the flange plate 501 is sleeved outside the water outlet of the water drain pipe 3, and is fixed on the beam plate through the flange plate 501, a rubber waterproof gasket 8 is arranged between the flange plate 501 of the water collecting and draining device 5 and the beam plate, sealant 6 is evenly coated on the position contacted between the flange plate 501, the beam plate and the rubber waterproof gasket 8, the inner circumferential surface of the rubber waterproof gasket is coated with sealant 6, and a slope is formed between the beam plate and the inner circumferential surface of the flange plate 501.

[0041] As Figure 5 And Figures 7-9 shown, the main beam 7 adopts a hollow plate or a solid plate, the thick concrete pavement 10 and the asphalt concrete 9 are sequentially arranged on the main beam 7, the water drain pipe 3 is transversely arranged, and the water outlet of the water drain pipe is located on the corrugated guardrail 11, at this time, the water collecting and draining device 5 adopts an L-shaped pipe with a rectangular cross section.

[0042] Further, a plurality of anchor bolt holes 14 are arranged on the flange plate of the water collecting and draining device 5, and the flange plate is fixed on the beam plate through the anchor bolt.

[0043] In the installation, the drainage device is arranged at the end of the existing transverse drain pipe and is larger than the hole diameter, the drainage device is made of PVC-U material, the water collecting device is fixed to the end of the beam plate flange and the side of the wave-shaped guardrail by the M10 model expansion anchor bolt with the nut being detachable, the 8mm thick rubber waterproof gasket is arranged between the water collecting device and the end of the beam plate flange and the side of the guardrail, the polysulfide corrosion-resistant sealant is evenly coated on the contact position of the end of the beam plate flange, the flange plate of the drainage device and the rubber waterproof gasket, the thickness of the polysulfide corrosion-resistant sealant is not less than 5mm, the flange position of the drainage device is pressed to make the sealant overflow, the polysulfide corrosion-resistant sealant is coated on the contact position of the top of the drainage pipe of the drainage device and the flange of the beam plate, and the height of the polysulfide corrosion-resistant sealant is higher than the top of the flange, so that a triangular slope is formed, and rainwater flows downward.

[0044] Example 3

[0045] In a typical embodiment of the utility model, a bridge drainage pipe end anti-seepage water collecting and draining structure is provided, which comprises a water collecting and draining device 5, the water collecting and draining device 5 is a pipe structure and is provided with a flange plate 501 at one end, one end of the water collecting and draining device 5 with the flange plate 501 is sleeved outside the water outlet of a drainage pipe 3, and the flange plate 501 is fixed on a beam plate; a rubber waterproof gasket 8 is arranged between the flange plate 501 of the water collecting and draining device 5 and the beam plate, sealant 6 is evenly coated on the position of contact between the flange plate 501, the beam plate and the rubber waterproof gasket 8, and the inner circumferential surface of the rubber waterproof gasket is coated with sealant 6, so that a slope is formed between the beam plate and the inner circumferential surface of the flange plate 501.

[0046] As Figure 6 and Figures 7-9 shown, the main beam 7 adopts a hollow plate, thick concrete paving 10 and asphalt concrete 9 are sequentially arranged on the main beam 7, the drainage pipe 3 is transversely arranged, and the water outlet of the drainage pipe is located on the wall-type guardrail 12, at this time, the water collecting and draining device 5 adopts an L-shaped pipe with a rectangular cross section.

[0047] Further, when the mounting surface of the flange plate is an inclined surface, the cement mortar 13 is used for leveling.

[0048] In the installation, the water collecting and draining device with a larger diameter than the hole diameter is arranged at the end of the existing transverse drain pipe, the water collecting and draining device is made of PVC-U material, the side of the wall type guardrail is leveled by cement mortar, then the water collecting and draining device is fixed to the end of the beam plate flange and the side of the wall type guardrail by the M10 model expanded base anchor bolt with a detachable nut, a 8mm thick rubber waterproof gasket should be additionally arranged between the water collecting device and the end of the beam plate flange and the side of the guardrail, the polythiourethane anticorrosive sealant is evenly applied on the contact position of the end of the beam body flange, the flange plate of the water collecting and draining device and the rubber waterproof gasket, the thickness of the polythiourethane anticorrosive sealant is not less than 5mm, the flange position of the water collecting and draining device is pressed until the sealant overflows, after the fixation, the polythiourethane anticorrosive sealant is applied on the whole contact position of the top of the drain pipe of the water collecting and draining device and the end of the beam body flange, the height of the polythiourethane anticorrosive sealant should be higher than the top of the flange, so as to form a triangular slope, which is convenient for the rainwater to flow downward.

[0049] The preferred embodiments of the utility model are described above only, and are not used for limiting the utility model, for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A bridge water drain end portion leakage preventing water collecting and draining structure characterized by, The drainage device comprises a pipe structure with a flange plate at one end, the drainage device with the flange plate is sleeved outside the water outlet of the drain pipe, and is fixed on the beam plate through the flange plate; a rubber waterproof gasket is arranged between the flange plate of the drainage device and the beam plate, sealing glue is uniformly applied to the positions in contact among the flange plate, the beam plate and the rubber waterproof gasket, the inner circumferential surface of the rubber waterproof gasket is coated with sealing glue, and a slope surface is formed between the beam plate and the inner circumferential surface of the flange plate.

2. The end portion of a drain pipe for a bridge according to Claim 1, wherein A plurality of reserved holes are arranged on the flange plate, and the flange plate is fixed on the beam plate through fixed cannon pins penetrating through the reserved holes.

3. The end portion of a drain pipe for a bridge according to claim 2, wherein The fixed cannon pins penetrate into the beam plate with a thickness not less than 30 mm.

4. The end seepage prevention and drainage structure for a bridge drain according to claim 1, wherein The sealing glue applied to the positions in contact among the flange plate, the beam plate and the rubber waterproof gasket has a thickness not less than 5 mm.

5. The end seepage prevention and drainage structure for a bridge drain according to claim 1, wherein The sealing glue is polythiourethane corrosion-resistant sealing glue.

6. The end seepage prevention and drainage structure for a bridge drain according to claim 1, wherein When the drain pipe is vertically arranged, the drainage device adopts a pipe with a circular cross section, and the inner diameter of the drainage device is greater than the outer diameter of the drain pipe.

7. The end seepage prevention and drainage structure for a bridge drain according to claim 1, wherein When the drain pipe is horizontally arranged, the drainage device adopts an L-shaped pipe with a rectangular cross section.

8. The end portion of a drain pipe for a bridge according to claim 7, wherein A plurality of anchor bolt holes are arranged on the flange plate of the drainage device, and the flange plate is fixed on the beam plate through anchor bolts.

9. The end seepage prevention and drainage structure for a bridge drain according to claim 8, wherein When the mounting surface of the flange plate is an inclined surface, cement mortar is used for leveling.

10. The end seepage prevention and drainage structure for a bridge drain according to claim 1, wherein The drainage device is made of hard polyvinyl chloride.