Anti-clogging overflow structure

Abstract

The application discloses an anti-blocking overflow structure, which comprises an outer sleeve fixedly arranged in a handrail, openings are formed on two side surfaces of the handrail, the opening on the side of the handrail close to a bridge deck is higher than the opening on the side of the handrail away from the bridge deck, and the outer sleeve is arranged in a staggered mode with a water drain hole arranged on the bridge deck; an inner sleeve is sleeved in the outer sleeve, an outer side wall of the inner sleeve is slidably abutted against an inner side wall of the outer sleeve, and an inner portion of the inner sleeve is provided with a cross rod; and the inner sleeve and the outer sleeve are arranged in a detachable connection mode.

Description

Technical Field

[0001] This utility model relates to the field of bridges, specifically to an anti-clogging and overflow structure. Background Technology

[0002] During bridge operation, the stability of the bridge deck drainage system directly affects the structural safety and traffic efficiency of the bridge. The drainage hole design commonly used in current bridges has significant potential for clogging in actual use: during rainfall, debris such as mud, fallen leaves, and household waste from the bridge deck can easily flow into the drainage holes with the water flow, causing blockages; after long-term use, the inner wall of the drainage hole will further reduce the water passage cross-section due to scale deposition and microbial adhesion, and in severe cases, it may even completely block drainage.

[0003] Blocked drainage holes directly cause excessive water accumulation on the bridge surface, leading to multiple hazards: water accumulation reduces the bridge surface's anti-skid performance, increasing the risk of vehicle skidding and rear-end collisions, threatening driving safety; water seeps into the bridge surface's structural layers, accelerating steel corrosion and concrete carbonization, shortening the bridge's service life; in low-temperature environments, frozen water may also cause the bridge surface pavement to freeze and crack, further aggravating structural damage, affecting normal vehicle traffic, and even endangering traffic safety.

[0004] To address the problem of clogged drainage holes, existing technologies often employ maintenance methods such as regular manual cleaning and high-pressure water flushing. However, these methods have significant limitations: manual cleaning requires traffic interruption, resulting in low efficiency and high costs; high-pressure flushing can easily cause impact damage to the drainage hole pipes and is difficult to completely remove stubborn debris. These methods cannot fundamentally prevent drainage failure caused by clogged drainage holes, and thus fail to meet the requirements for the long-term safe operation of bridges.

[0005] Therefore, it is essential to propose a structure that prevents clogging and overflow. Utility Model Content

[0006] The purpose of this utility model is to provide an anti-clogging overflow structure that can prevent excessive water accumulation on bridges due to blockage of drainage holes, increase the bridge drainage fault tolerance rate, and quickly dredge waterways, thereby solving the existing technical defects and unmet technical requirements.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an anti-clogging overflow structure, comprising: The outer sleeve is fixedly installed in the railing, and openings are formed on both sides of the railing. The opening on the side of the railing closer to the bridge surface is higher than the opening on the side of the railing farther from the bridge surface, and the outer sleeve is offset from the drainage hole installed on the bridge surface. An inner sleeve is fitted inside an outer sleeve, with the outer side wall of the inner sleeve sliding against the inner side wall of the outer sleeve, and a crossbar is provided inside the inner sleeve. The inner sleeve and the outer sleeve are designed to be detachably connected.

[0008] In this application, it is necessary to further explain that the misalignment setting in this application refers to the fact that the opening of the outer sleeve is not near the drain hole. That is to say, the opening of the outer sleeve is not on the projection of the vertical plane (the vertical plane refers to the cross-section extending only in the vertical direction and not in the horizontal direction, that is, extending only in the direction and not in the width) of the drain hole onto the railing.

[0009] Additionally, it should be noted that the railings in this application refer to a component of a bridge, namely, the protective railings on the bridge structure, including but not limited to stone railings.

[0010] Preferably, one end of the inner sleeve is provided with an abutment plate, one end of which is connected to the outer wall of the inner sleeve, and the other end extends away from the inner sleeve. The abutment plate abuts against the side of the railing near the bridge surface.

[0011] Preferably, the inner sleeve has at least three protrusions at one end away from the abutment plate, one end of each protrusion being connected to the outer wall of the inner sleeve and the other end sliding against the inner wall of the outer sleeve.

[0012] Preferably, the end of the inner sleeve away from the abutment plate extends out of the outer sleeve.

[0013] Preferably, the abutment plates are circumferentially distributed on the outer side wall of the inner sleeve, forming a circumferential closed loop around the opening of the inner sleeve.

[0014] In this application, it is necessary to further explain that the previous text only mentioned that the abutment plate is set on the outer wall of the inner sleeve, but did not explain how it is distributed. Therefore, the abutment plate can be spaced out, such as two abutment plates set opposite each other on the outer wall of the inner sleeve. The limitation here can be understood as the abutment plate being a whole piece and ring-shaped, which is equivalent to the inner sleeve being fitted in the inner ring formed by the abutment plate. Of course, the shape of this inner ring is not specifically required.

[0015] Preferably, the protrusions are distributed circumferentially along the outer side wall of the inner sleeve.

[0016] Preferably, the crossbar is located on the inner sleeve at one end near the abutment plate.

[0017] In this application, it is necessary to further explain that the position of the crossbar here can be understood as being located near the opening of the inner sleeve at the end where the abutment plate is located.

[0018] Preferably, the drainage hole is set perpendicular to the bridge deck.

[0019] Preferably, the protrusions on the inner sleeve are located at least at the bottom of the inner sleeve and on both sides of the inner sleeve.

[0020] Preferably, a mating part is provided on the inner wall of the outer sleeve at a position corresponding to the protrusion, and the protrusion at least on both sides of the inner sleeve can be adapted and installed with the mating part; The mating component includes a guide groove and a mounting recess, the guide groove and the mounting recess being interconnected, and the mounting recess being located on the side of the guide groove closer to the tail end of the outer sleeve.

[0021] What needs further explanation in this application is that the main function of the protrusion is to provide support. The protrusion that can be adapted to the mating part is also used for positioning and assembly, increasing the stability of the connection between the inner sleeve and the outer sleeve. The guide groove can guide the protrusion into the assembly recess during the installation. In addition, the degree of the assembly recess is balanced with the existing fitting and installation effect during positioning, and also ensures the convenience of pulling out the inner sleeve.

[0022] Preferably, the inner sleeve and outer sleeve are set with a longitudinal slope of at least 6%.

[0023] Preferably, the opening of the inner sleeve at the end near the bridge deck is at least 3cm away from the bridge deck in the vertical direction.

[0024] Preferably, the inner diameter of the outer sleeve is at least 3 mm larger than the outer diameter of the inner sleeve.

[0025] In this application, it should be further noted that both the inner diameter and outer diameter mentioned above refer to the diameter.

[0026] Preferably, the thickness of the abutment plate is at least 2 mm and the width is at least 4 mm.

[0027] Preferably, the height of the protrusion is between 0 and 1.5 mm.

[0028] Further explanation is needed regarding this application. The meaning of the above content can be understood as the height of the protrusion not including the numerical range mentioned above; that is, the height of the protrusion is not 0mm or 1.5mm. Additionally, it needs to be further clarified that the central axis of the inner sleeve and the central axis of the outer sleeve may not coincide. That is, the centerline point of the cross-section at the tail end (the end furthest from the abutment plate) of the inner sleeve is lower than the centerline point of the corresponding cross-section of the outer sleeve, reducing the machining accuracy during material processing and improving the tolerance for errors in the assembly between the inner and outer sleeves.

[0029] Preferably, the diameter of the crossbar is at least 4 mm.

[0030] In this application, it should be further explained that the height of the protrusion refers to the distance from the top of the protrusion to the outer wall of the inner sleeve.

[0031] Compared with the prior art, the beneficial effects of this utility model are: 1. This application features a pull-out design with an inner sleeve and an outer sleeve, and a crossbar inside the inner sleeve. This design allows water to flow out of the inner sleeve when the drain outlet is blocked. The crossbar also reduces the chance of re-blockage. Even if the inner sleeve is blocked, the crossbar is positioned for easy cleaning. Furthermore, the design of the inner and outer sleeves makes it easy to remove the inner sleeve for cleaning or replace it, thus more conveniently resolving the blockage problem. Attached Figure Description

[0032] Figure 1 This is a schematic diagram showing the relationship between the present invention and its position on the bridge; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is a side view of the present invention; Figure 4 This is a rear view of the present invention; Figure 5 This is a schematic diagram of the overall structure of the inner sleeve in this utility model; Figure 6 This is a cross-sectional view of the outer sleeve in this utility model; Figure 7 In this utility model Figure 6 The enlarged view at point A is shown in the diagram. In the diagram: 1. Outer sleeve; 2. Railing; 3. Bridge deck; 4. Inner sleeve; 5. Crossbar; 6. Abutment plate; 7. Protrusion; 8. Drain hole; 9. Fitting part; 10. Guide groove; 11. Assembly recess. Detailed Implementation

[0033] The following will refer to the appendix in the embodiments of this utility model. Figure 1-7 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] Please see Figure 1-7 Embodiments of this utility model: Example: like Figure 1 , 2 As shown in Figure 5: A clog-resistant overflow structure, comprising: The outer sleeve 1 is fixedly installed in the railing 2. Openings are formed on both sides of the railing 2. The opening on the side of the railing 2 closer to the bridge surface 3 is higher than the opening on the side of the railing 2 away from the bridge surface 3. The outer sleeve 1 is offset from the drainage hole 8 installed on the bridge surface 3. Inner sleeve 4, which is fitted inside outer sleeve 1, with the outer side wall of inner sleeve 4 sliding against the inner side wall of outer sleeve 1, and a crossbar 5 provided inside inner sleeve 4; The inner sleeve 4 and the outer sleeve 1 are configured to be detachably connected.

[0035] In this embodiment, firstly, the staggered arrangement of the outer sleeve 1 and the drainage hole 8 makes this application less prone to clogging. If the drainage hole 8 is clogged, causing water to accumulate on the bridge deck 3, then leaves and debris will accumulate above the drainage hole 8 because it is the primary drainage location. If the outer sleeve 1 is placed near the drainage hole 8, the debris accumulated near the drainage hole 8 may affect the drainage effect of this application. In addition, the crossbar 5 will also intercept debris or leaves entering the inner sleeve 4, preventing excessive debris from entering the inner sleeve 4 and causing it to become clogged. The overall structure of the inner sleeve 4 and the outer sleeve 1 firstly ensures that the inner sleeve itself has an anti-clogging effect. Secondly, even if the inner sleeve 4 is clogged, the arrangement of the inner sleeve 4 and the outer sleeve 1 is convenient for disassembly and assembly. After clogging, the inner sleeve 4 can be pulled out for cleaning and then reinstalled, or the inner sleeve 4 can be directly replaced.

[0036] like Figure 1 As shown: One end of the inner sleeve 4 is provided with an abutment plate 6. One end of the abutment plate 6 is connected to the outer wall of the inner sleeve 4, and the other end extends away from the inner sleeve 4. The abutment plate 6 abuts against the side of the railing 2 near the bridge surface 3.

[0037] like Figure 1 and 4 As shown: At least three protrusions 7 are provided on the end of the inner sleeve 4 away from the abutment plate 6. One end of the protrusion 7 is connected to the outer wall of the inner sleeve 4, and the other end slides against the inner wall of the outer sleeve 1.

[0038] In this embodiment, by providing the protrusion 7, the inner sleeve 4 can be supported, thereby reducing the friction during extraction.

[0039] like Figure 3 As shown: the end of the inner sleeve 4 that is away from the abutment plate 6 extends out of the outer sleeve 1.

[0040] like Figure 2 and 5As shown: the abutment plate 6 is circumferentially distributed on the outer side wall of the inner sleeve 4, forming a circumferential closed loop around the opening of the inner sleeve 4.

[0041] In this embodiment, the specific arrangement of the abutment plate 6 mentioned above is not emphasized. It mainly serves to connect the inner sleeve 4 and the outer sleeve 1. The abutment plate 6, which is continuously arranged here, can prevent water, mud, sand or debris from entering the outer sleeve 1 while abutting. This prevents the inner sleeve 4 and the outer sleeve 1 from becoming impossible to disassemble due to excessive debris. The abutment plate 6 can also increase the stability of the assembly between the inner sleeve 4 and the outer sleeve 1. That is, the abutment plate can increase the stability of the assembly of the two in the circumferential direction. Since the two pipes are inclined and the railing 2 is vertical, the abutment plate 6 also abuts against the railing 2. Therefore, the abutment plate 6 can increase the stability of the assembly of the two pipes in the circumferential direction.

[0042] like Figure 4-5 As shown: the protrusions 7 are distributed circumferentially along the outer side wall of the inner sleeve 4.

[0043] In this embodiment, the protrusion 7 is designed to provide full support for the inner sleeve 4.

[0044] like Figure 2 As shown: The crossbar 5 is located on the inner sleeve 4 at one end near the abutment plate 6.

[0045] In this embodiment, the crossbar 5 mentioned above is not limited to its position in the inner sleeve 4. This limitation allows the crossbar 5 to intercept debris near the water inlet (the end where the abutment plate 6 is set) while preventing blockage, making it easy to clean. More importantly, when the inner sleeve 4 is pulled out, the crossbar 5 near the water inlet can be used as a handle to facilitate the separation of the inner sleeve 4 and the outer sleeve 1.

[0046] like Figure 1 As shown: The drainage hole 8 is set perpendicular to the bridge deck 3.

[0047] like Figure 6 As shown: the protrusion 7 on the inner sleeve 4 is located at least at the bottom of the inner sleeve 4 and on both sides of the inner sleeve 4.

[0048] like Figure 7 As shown: A mating part 9 is provided on the inner wall of the outer sleeve 1 at a position corresponding to the protrusion 7, and the protrusion 7 located at least on both sides of the inner sleeve 4 can be adapted and installed with the mating part 9. The mating component 9 includes a guide groove 10 and a mounting recess 11, the guide groove 10 and the mounting recess 11 are interconnected, and the mounting recess 11 is located on the guide groove 10 on the side closer to the tail end of the outer sleeve 1.

[0049] In this embodiment, the fitting part 9 can increase the stability of the two tubes during installation. It mainly limits the length of the two tubes and also limits some of them in the circumferential direction. Combined with the abutment plate 6, it prevents the two tubes from rotating or sliding relative to each other after assembly, thus comprehensively increasing the stability of the assembly between the two tubes.

[0050] The inner sleeve 4 and the outer sleeve 1 are set with a large longitudinal slope of 6%.

[0051] The opening of the inner sleeve 4 at the end near the bridge deck 3 is 33cm away from the bridge deck in the vertical direction.

[0052] The inner diameter of the outer sleeve 1 is 3mm larger than the outer diameter of the inner sleeve 4.

[0053] The abutment plate 6 has a thickness of 2mm and a width of 4mm.

[0054] The height of the protrusion 7 is 1.4 mm.

[0055] In this embodiment, even though the height of the protrusion 7 is 1.4mm and the distance between the outer wall of the inner sleeve 4 and the inner wall of the outer sleeve 1 is 1.5mm, the protrusion 7 still has a contacting effect with the inner wall of the outer sleeve 1 because the tail end of the inner sleeve 4 can be tilted downward. At this time, the central axes of the inner sleeve 4 and the outer sleeve 1 are not collinear.

[0056] The diameter of the crossbar 5 is 4mm.

[0057] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0058] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A clog-proof overflow structure, characterized in that, include: Outer tube (1), the outer tube (1) is fixedly installed in the railing (2), and openings are formed on both sides of the railing (2). The opening on the side of the railing (2) closer to the bridge surface (3) is higher than the opening on the side of the railing (2) away from the bridge surface (3). The outer tube (1) and the drainage hole (8) installed on the bridge surface (3) are misaligned. Inner sleeve (4), the inner sleeve (4) is sleeved in the outer sleeve (1), the outer side wall of the inner sleeve (4) slides against the inner side wall of the outer sleeve (1), and a crossbar (5) is provided inside the inner sleeve (4). The inner sleeve (4) and the outer sleeve (1) are configured to be detachably connected.

2. The anti-clogging overflow structure according to claim 1, characterized in that, One end of the inner sleeve (4) is provided with an abutment plate (6). One end of the abutment plate (6) is connected to the outer wall of the inner sleeve (4), and the other end extends away from the inner sleeve (4). The abutment plate (6) abuts against the side of the railing (2) near the bridge surface (3).

3. The anti-clogging overflow structure according to claim 2, characterized in that, At least three protrusions (7) are provided on the end of the inner sleeve (4) away from the abutment plate (6). One end of the protrusion (7) is connected to the outer wall of the inner sleeve (4), and the other end slides against the inner wall of the outer sleeve (1).

4. The anti-clogging overflow structure according to claim 3, characterized in that, The end of the inner sleeve (4) away from the abutment plate (6) extends out to the outer sleeve (1).

5. A clog-proof overflow structure according to claim 3 or 4, characterized in that, The abutment plate (6) is circumferentially distributed on the outer wall of the inner sleeve (4), forming a circumferential closed loop around the opening of the inner sleeve (4).

6. The anti-clogging overflow structure according to claim 5, characterized in that, The protrusions (7) are distributed circumferentially along the outer side wall of the inner sleeve (4).

7. The anti-clogging overflow structure according to claim 6, characterized in that, The crossbar (5) is located on the inner sleeve (4) at one end near the abutment plate (6).

8. A clog-proof overflow structure according to claim 1, 2, 3, 4 or 6, characterized in that, The drainage hole (8) is set perpendicular to the bridge deck (3).

9. The anti-clogging overflow structure according to claim 7, characterized in that, The protrusion (7) on the inner sleeve (4) is located at least at the bottom of the inner sleeve (4) and on both sides of the inner sleeve (4).

10. The anti-clogging overflow structure according to claim 9, characterized in that, The inner wall of the outer sleeve (1) is provided with a mating part (9) at a position corresponding to the protrusion (7), and the protrusion (7) located at least on both sides of the inner sleeve (4) can be adapted to be installed with the mating part (9). The mating part (9) includes a guide groove (10) and a mounting recess (11), the guide groove (10) and the mounting recess (11) are interconnected, and the mounting recess (11) is located on the guide groove (10) on the side closer to the tail end of the outer sleeve (1).

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