Bridge expansion joint drainage structure

Abstract

The utility model discloses a drainage structure of a bridge expansion joint. Comprising a first drainage pipe which is arranged in a bridge expansion joint groove area and can extend out of a guardrail, at least one second drainage pipe which can extend into a bridge floor gravel blind ditch, and an adapter pipe which is arranged in the bridge expansion joint groove area and communicates the first drainage pipe with the second drainage pipe. According to the utility model, interlayer water between the bridge deck concrete and the asphalt surface layer can be effectively drained, the interlayer water collection and smooth drainage of the gravel blind ditch are ensured, and the damage of water damage to the bridge deck asphalt concrete caused by water is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge drainage, in particular to a bridge expansion joint drainage structure. Background Art

[0002] The construction technology of bridge deck drainage has become increasingly mature, but in the actual construction process, it is found that the bridge deck gravel blind ditch will be blocked during the pouring of bridge expansion joint concrete, and the interlayer water between the bridge deck concrete and the asphalt surface layer is generally discharged through the bridge deck gravel blind ditch, which will cause poor drainage and prevent the interlayer water from being discharged in time, which is easy to cause damage to the bridge deck asphalt concrete. In order to overcome the defects of the prior art, the purpose of the present invention is to provide a bridge expansion joint drainage structure that can effectively solve the gravel blind ditch drainage. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a bridge expansion joint drainage structure which can effectively solve the problem of gravel blind ditch drainage.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a bridge expansion joint drainage structure, comprising a first drainage pipe arranged in the bridge expansion joint groove area and extending outside the guardrail, at least one second drainage pipe that can extend into the gravel blind ditch on the bridge deck, and a switching pipe arranged in the bridge expansion joint groove area and connecting the first drainage pipe and the second drainage pipe.

[0005] Furthermore, the transfer tube may be a three-way tube or a two-way tube.

[0006] Furthermore, the first drain pipe and the second drain pipe each include a pipe body, a first flange arranged along the circumference of the pipe body, and a receiving pipe arranged along the axial direction of the pipe body, and the transfer pipe includes a transfer pipe body and a second flange arranged along the circumference of the transfer pipe body;

[0007] The diameter of the receiving tube gradually decreases from the pipe opening of the tube body from near to far, and the inner wall of the pipe opening of the adapter tube body is provided with a receiving groove matching the receiving tube. The receiving tube can be inserted into the receiving groove, and the first flange and the second flange can be connected by bolts.

[0008] Further, the first flange includes a first plate body and four connection blocks spaced apart from the first plate body along the axial direction of the tube body, and the four connection blocks are arranged along the circumference of the tube body, and the second flange includes a second plate body and a third plate body spaced apart from the second plate body along the axial direction of the transfer tube body to form a clamping groove, and the second plate body is provided with four notches;

[0009] The four connecting blocks can respectively pass through the four notches and enter the clamping groove, and the first plate body can contact the second plate body.

[0010] Further, the receiving tube includes a first receiving portion and a second receiving portion connected to the first receiving portion, and the first receiving portion is provided with four groups of first plug-in blocks along the circumferential direction, and the second receiving portion is provided with four first slots along the circumferential direction, and the four first plug-in blocks correspond to the four first slots in a one-to-one manner along the busbar direction of the receiving tube;

[0011] The receiving groove includes a first groove portion and a second groove portion connected to the first groove portion, and four second slots are circumferentially provided on the groove wall of the first groove portion, and four second plug-in block groups are circumferentially provided on the groove wall of the second groove portion, and the four second slots and the four second plug-in block groups correspond one to one along the generatrix direction of the receiving groove;

[0012] The first plug block group and the second plug block group both include a plurality of plug blocks arranged in sequence and at intervals along the water flow direction, and a groove that can slide with the second plug block group and the first plug block group is respectively provided on one side of the groove wall of the first slot and the second slot.

[0013] Furthermore, soft rubber pads are provided on the groove walls of the slot and the groove walls of the slide groove.

[0014] The beneficial effects of the utility model are embodied in:

[0015] The utility model can effectively drain the interlayer water between the bridge deck concrete and the asphalt surface layer, ensure the smooth drainage of the interlayer water collection and the gravel blind ditch, and greatly reduce the damage of the bridge deck asphalt concrete caused by water. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the use status of a bridge expansion joint drainage structure of the utility model;

[0017] Figure 2 This is a schematic diagram of another bridge expansion joint drainage structure in use state of the utility model;

[0018] Figure 3 It is a side view of the structure of the transfer tube part of the utility model;

[0019] Figure 4 This is a bottom view of the transfer tube structure of the utility model;

[0020] Figure 5 It is a side sectional view of a part of the structure of the first drain pipe or the second drain pipe of the utility model;

[0021] Figure 6It is a top view of the first drain pipe or the second drain pipe structure of the utility model;

[0022] Figure 7 It is a side cross-sectional view of the connection structure between the transfer pipe and the first drain pipe or the second drain pipe of the utility model;

[0023] Figure 8 yes Figure 7 Enlarged view of part E.

[0024] The components in the accompanying drawings are marked as follows: 1. First drain pipe; 101. Pipe body; 102. First flange; 1021. First plate body; 1022. Connecting block; 103. Receiving pipe; 1031. First receiving part; 1032. Second receiving part; 1033. First slot; 1034. Slide; 104. First plug-in block group; 1041. Plug; 2. Second drain pipe; 3. Transfer pipe; 301. Transfer pipe body; 302. Second flange; 3021. Second plate body; 3022. Third plate body; 3023. Notch; 303. Receiving groove; 3031. First slot; 3032. Second slot; 3033. Second slot; 304. Second plug-in block group; 4. Soft rubber pad; A. Bridge expansion joint slot area; B. Guardrail; C. Gravel blind ditch on bridge deck; D. Clamp groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] See also Figure 1 and Figure 2 .

[0027] The utility model discloses a bridge expansion joint drainage structure, comprising a first drainage pipe 1 which is arranged in a bridge expansion joint groove area A and can extend outside a guardrail B, at least one second drainage pipe 2 which can extend into a gravel blind ditch C on a bridge deck, and a transfer pipe 3 which is arranged in the bridge expansion joint groove area A and connects the first drainage pipe 1 and the second drainage pipe 2.

[0028] The utility model of the bridge expansion joint drainage structure can effectively remove the interlayer water between the bridge deck concrete and the asphalt surface layer, ensure the smooth drainage of interlayer water collection and gravel blind ditch, and greatly reduce the damage of bridge deck asphalt concrete caused by water;

[0029] In this embodiment, the first drainage pipe 1 can also be connected to the bridge rainwater collection system, and can be connected to the bridge centralized drainage system to form a closed-loop effective bridge deck drainage system. The bridge rainwater collection system is an existing structure and will not be described in detail here. The specific connection of the first drainage pipe 1 to it, that is, connection through a pipeline, can be achieved through existing technology and will not be described in detail here.

[0030] And in this embodiment, the water inlet end of the second drainage pipe 2 can be wrapped with anti-filter geotextile;

[0031] In the present embodiment, when one second drainage pipe 2 is provided, two bridge expansion joint drainage structures can be respectively provided on both sides of the bridge; when two second drainage pipes 2 are provided, second drainage pipes 2 can be respectively provided in the gravel blind ditch C on the bridge deck on both sides of the bridge and merged into the transfer pipe 3 together.

[0032] In one embodiment, see Figure 1 and Figure 2 The transfer pipe 3 can be a three-way pipe or a two-way pipe. This design meets the design requirements of setting two or one second drain pipe 2.

[0033] In one embodiment, see Figure 3 and Figure 5 The first drain pipe 1 and the second drain pipe 2 each include a pipe body 101, a first flange 102 arranged along the circumference of the pipe body 101, and a receiving pipe 103 arranged along the axial direction of the pipe body 101. The adapter pipe 3 includes an adapter pipe body 301 and a second flange 302 arranged along the circumference of the adapter pipe body 301.

[0034] The diameter of the receiving tube 103 gradually decreases from the near end to the far end of the tube body 101, and the inner wall of the tube mouth of the adapter tube body 301 is provided with a receiving groove 303 matching the receiving tube 103, the receiving tube 103 can be inserted into the receiving groove 303, and the first flange 102 and the second flange 302 can be connected by bolts. In this design, by changing the diameter of the receiving tube 103, the side length of its cross section is increased, that is, the length of the connection surface between it and the receiving groove 303 is increased, and the waterproof path is extended to improve the waterproof effect.

[0035] In one embodiment, see Figure 3-Figure 5The first flange 102 includes a first plate 1021 and four connecting blocks 1022 spaced apart from the first plate 1021 along the axial direction of the tube 101, and the four connecting blocks 1022 are arranged along the circumference of the tube 101. The second flange 302 includes a second plate 3021 and a third plate 3022 spaced apart from the second plate 3021 along the axial direction of the adapter tube 301 to form a clamping groove D, and the second plate 3021 is provided with four notches 3023;

[0036] The four connecting blocks 1022 can respectively pass through the four notches 3023 and enter the clamping groove D, and the first plate body 1021 can contact the second plate body 3021. With this design, the first flange 102 and the second flange 302 can be accurately pre-positioned by passing through the four notches 3023 and penetrating the four notches 3023, which facilitates the alignment connection of the bolt holes of the first flange 102 and the second flange 302. In this embodiment, the bolt holes of the first flange 102 can be opened at the positions of the corresponding notches 3023 of the first plate body 1021, and the bolt holes of the second flange 302 can be opened on the four connecting blocks 1022.

[0037] In one embodiment, see Figure 3-Figure 7 The receiving tube 103 includes a first receiving portion 1031 and a second receiving portion 1032 connected to the first receiving portion 1031, and the first receiving portion 1031 is provided with four groups of first plug-in blocks 104 along the circumferential direction, and the second receiving portion 1032 is provided with four first slots 1033 along the circumferential direction, and the four first plug-in blocks 104 correspond to the four first slots 1033 along the busbar direction of the receiving tube 103 in a one-to-one manner;

[0038] The receiving groove 303 includes a first groove portion 3031 and a second groove portion 3032 connected to the first groove portion 3031, and four second slots 3033 are circumferentially provided on the groove wall of the first groove portion 3031, and four second plug-in blocks 304 are circumferentially provided on the groove wall of the second groove portion 3032, and the four second slots 3033 and the four second plug-in blocks 304 correspond to each other one by one along the busbar direction of the receiving groove 303;

[0039] The first plug block group 104 and the second plug block group 304 both include a plurality of plug blocks 1041 arranged in sequence and spaced apart along the water flow direction, and a plurality of sliding grooves 1034 are respectively provided on one side wall of the first slot 1033 and the second slot 3033, which can slide and cooperate with the plurality of plug blocks 1041 of the second plug block group 304 and the plurality of plug blocks 1041 of the first plug block group 104 in a one-to-one correspondence.

[0040] In this embodiment, when the four connection blocks 1022 respectively pass through the four notches 3023 and enter the clamping groove D, the four first plug-in block groups 104 are respectively inserted into the four second slots 3033, and the four second plug-in block groups 304 are respectively inserted into the four second slots 3033. By driving the four connection blocks 1022 to rotate in the clamping groove D, the plug-in block 1041 slides into the corresponding slide groove 1034, thereby further extending the waterproof path and improving the waterproof effect.

[0041] In this embodiment, two ends of the plug blocks 1041 in the four first plug block groups 104 away from the first flange 102 can be connected to two ends of the plug blocks 1041 in the four second plug block groups 304 close to the second flange 302 to form a circle;

[0042] In this embodiment, the four notches 3023 each occupy one eighth of the circumference of the first flange 102, and the four connecting blocks 1022 can rotate within the clamping groove D by one eighth of the circumference of the first flange 102;

[0043] In this embodiment, the threaded holes of the first flange 102 are formed at the position where the notch 3023 is formed on the second plate 3021 , and the threaded holes of the second flange 302 are formed on the four connection blocks 1022 .

[0044] In one embodiment, see Figure 5 and Figure 8 Soft rubber pads 4 are provided on the groove walls of the slide groove 1034 and the groove walls of the clamping groove D. This design further increases the precision of the connection between the transfer pipe 3 and the first drain pipe 1 and the second drain pipe 2, and enhances the water leakage prevention effect.

[0045] It should be understood that the examples and implementation modes described herein are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art may make various modifications or changes based on the examples and implementation modes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0046] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0047] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that satisfy both A and B. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

Claims

1. A bridge expansion joint drainage structure, characterized in that: The invention comprises a first drainage pipe (1) arranged in a bridge expansion joint groove area (A) and capable of extending out of a guardrail (B), at least one second drainage pipe (2) capable of extending into a gravel blind ditch (C) on a bridge deck, and a transfer pipe (3) arranged in the bridge expansion joint groove area (A) and connecting the first drainage pipe (1) and the second drainage pipe (2).

2. The bridge expansion joint drainage structure according to claim 1, characterized in that: The transfer pipe (3) can be a three-way pipe or a two-way pipe.

3. The bridge expansion joint drainage structure according to claim 1 or 2, characterized in that: The first drain pipe (1) and the second drain pipe (2) both comprise a pipe body (101), a first flange (102) arranged along the circumference of the pipe body (101), and a receiving pipe (103) arranged along the axial direction of the pipe body (101); the adapter pipe (3) comprises a adapter pipe body (301) and a second flange (302) arranged along the circumference of the adapter pipe body (301); The diameter of the receiving tube (103) gradually decreases from the tube mouth of the tube body (101) from near to far, and the inner wall of the tube mouth of the adapter tube body (301) is provided with a receiving groove (303) matching the receiving tube (103), the receiving tube (103) can be inserted into the receiving groove (303), and the first flange (102) and the second flange (302) can be connected by bolts.

4. The bridge expansion joint drainage structure according to claim 3 is characterized in that: The first flange (102) comprises a first plate (1021) and four connecting blocks (1022) arranged at intervals from the first plate (1021) along the axial direction of the tube (101), and the four connecting blocks (1022) are arranged along the circumference of the tube (101); the second flange (302) comprises a second plate (3021) and a third plate (3022) arranged at intervals from the second plate (3021) along the axial direction of the adapter tube (301) to form a clamping groove (D), and the second plate (3021) is provided with four notches (3023); The four connecting blocks (1022) can respectively pass through the four notches (3023) and enter the clamping groove (D), and the first plate body (1021) can be in contact with the second plate body (3021).

5. The bridge expansion joint drainage structure according to claim 4, characterized in that: The receiving tube (103) comprises a first receiving portion (1031) and a second receiving portion (1032) connected to the first receiving portion (1031), and the first receiving portion (1031) is provided with four groups of first plug-in blocks (104) along the circumferential direction, and the second receiving portion (1032) is provided with four first slots (1033) along the circumferential direction, and the four first plug-in blocks (104) and the four first slots (1033) correspond one to one along the busbar direction of the receiving tube (103); The receiving groove (303) comprises a first groove portion (3031) and a second groove portion (3032) connected to the first groove portion (3031), and four second slots (3033) are circumferentially provided on the groove wall of the first groove portion (3031), and four second plug-in block groups (304) are circumferentially provided on the groove wall of the second groove portion (3032), and the four second slots (3033) and the four second plug-in block groups (304) correspond one to one along the busbar direction of the receiving groove (303); The first plug block group (104) and the second plug block group (304) both include a plurality of plug blocks (1041) arranged in sequence and spaced apart along the water flow direction, and a groove (1034) which can slidably cooperate with the second plug block group (304) and the first plug block group (104) is respectively provided on one side groove wall of the first slot (1033) and the second slot (3033).

6. The bridge expansion joint drainage structure according to claim 5, characterized in that: Soft rubber pads (4) are provided on the groove wall of the sliding groove (1034) and the groove wall of the clamping groove (D).

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