Bridge transverse support waterproof and dustproof device

Abstract

The application provides a waterproof and dustproof device for a bridge lateral support, the lateral support is arranged on both sides of a bridge span structure and is used for cooperating with a limiting stand column to limit the bridge span structure from deviating from the center of the bridge in a longitudinal expansion and contraction process, and the waterproof and dustproof device comprises a frame, the frame is sleeved outside the lateral support, the frame has a first end connected to the bridge span structure and a second end away from the bridge span structure along the axial direction of the lateral support, a protection plate is arranged on the side surface of the frame, a flexible structure is arranged at the second end, the flexible structure adopts a brush, and the flexible structure is used for flexibly contacting the frame with the limiting stand column. The waterproof and dustproof device can prevent rainwater and dust from entering the lateral support, avoid the adverse effects caused by rainwater and dust, improve the service life of the lateral support, and reduce the maintenance cost.

Description

[0001] This disclosure claims priority to Chinese Patent Application No. 202520717552.8, filed on April 15, 2025, entitled "A Waterproof and Dustproof Device for a Bridge Lateral Support", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of bridge technology, and more specifically, to a waterproof and dustproof device for bridge transverse supports. Background Technology

[0003] With the rapid development of modern transportation infrastructure, bridge engineering plays an increasingly important role in transportation. The safety, durability, and functionality of bridge structures directly affect their service life and operational efficiency. Among them, transverse supports, as key components between the bridge span structure and the limiting columns, play a crucial role in ensuring bridge stability.

[0004] Lateral supports are typically installed on both sides of the bridge span structure. They can cooperate with the limiting columns to restrict the lateral displacement of the bridge span structure and prevent the center of gravity from shifting during longitudinal expansion and contraction. At the same time, the lateral supports can also slide with the limiting columns to prevent restriction of the longitudinal expansion and contraction of the bridge span structure.

[0005] However, in practical applications, transverse bearings often face challenges from the external environment, especially water erosion and dust contamination. Rainwater or other water sources can seep into the interior of the transverse bearings, corroding metal components or damaging the lubrication system, thereby reducing the bearing's service life. Dust particles easily adhere to the sliding contact surface, increasing frictional resistance, leading to decreased sliding performance and even jamming. Furthermore, dust can damage the sealing structure, further exacerbating the risk of water erosion. Due to the lack of effective protective measures, transverse bearings require frequent cleaning and maintenance, increasing the operating and maintenance costs of bridges. Summary of the Invention

[0006] This application provides at least one waterproof and dustproof device for bridge transverse bearings. This device can prevent rainwater and dust from entering the bearings, avoid the adverse effects of rainwater and dust, and help improve the service life of the bearings and reduce maintenance costs.

[0007] This application provides a waterproof and dustproof device for a bridge transverse support. The transverse support is disposed on both sides of the bridge span structure and is used to cooperate with the limiting column to limit the deviation of the bridge span structure from the bridge center during longitudinal expansion and contraction. The waterproof and dustproof device includes: a frame, which is sleeved on the transverse support and has a first end connected to the bridge span structure and a second end away from the bridge span structure along the axial direction of the transverse support; a protective plate, which is disposed on the side of the frame; and a flexible structure, which is disposed at the second end and is used to make the frame flexibly contact the limiting column.

[0008] In one optional embodiment, the protective plate includes a top plate, a bottom plate, and two side plates, wherein the top plate is made of stainless steel, and the bottom plate and the side plates are made of transparent vitrified plates.

[0009] In one optional embodiment, the top plate is provided with a first water-blocking edge at both ends along the axial direction of the transverse support, the first water-blocking edge being used to restrict rainwater on the top plate from flowing to the first end and the second end.

[0010] In one alternative embodiment, the base plate is provided with an access panel.

[0011] In one alternative implementation, the flexible structure employs a brush.

[0012] In one optional embodiment, the waterproof and dustproof device further includes a support structure, which is supported on the bottom of the frame and is capable of moving along the extension and contraction direction of the bridge structure.

[0013] In one alternative embodiment, the support structure includes a bracket and a pulley, with the top of the bracket connected to the bottom of the second end of the frame and the pulley connected to the bottom of the bracket.

[0014] In one alternative embodiment, the support structure further includes a slide rail disposed on the top surface of the pier, the slide rail being used to support the pulley and restrict the direction of movement of the pulley.

[0015] In one optional embodiment, the waterproof and dustproof device further includes a water baffle plate, which extends from the top of the limiting column to the top of the frame, and the water baffle plate is used to restrict rainwater from flowing to the contact position between the second end and the limiting column.

[0016] In one alternative embodiment, the edge of the cantilevered portion of the baffle is provided with a second water-retaining edge, which is used to restrict rainwater on the baffle from flowing toward the protective plate.

[0017] The above-mentioned technical solution of this application has the following beneficial technical effects:

[0018] The bridge transverse bearing waterproof and dustproof device of this application embodiment comprises a frame, a protective plate, and a flexible structure forming a protective structure for the transverse bearing. One end of the protective structure is fixedly connected to the bridge span structure, and the other end is in flexible contact with the limiting column. Simultaneously, this protective structure surrounds the transverse bearing, preventing rainwater and dust from entering, avoiding rainwater corrosion of metal components or damage to the lubrication system, and preventing dust particles from adhering to the sliding contact surface and reducing the bearing's sliding performance. This avoids the adverse effects of rainwater and dust, thus improving the bearing's service life and reducing maintenance costs. Furthermore, because one end of the protective structure is in flexible contact with the limiting column, the protective structure can achieve its protective function without affecting the relative movement of the transverse bearing and the limiting column during the longitudinal expansion and contraction of the bridge span structure.

[0019] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below. These drawings are incorporated in and constitute a part of this specification. They illustrate embodiments conforming to this application and, together with the specification, serve to explain the technical solutions of this application. It should be understood that the following drawings only show some embodiments of this application and should not be considered as limiting the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This invention provides a schematic diagram of the structure of a waterproof and dustproof device for a bridge transverse support according to an embodiment of the present application.

[0022] Figure 2 It shows Figure 1 An assembly diagram of a waterproof and dustproof device for a bridge transverse support is provided.

[0023] In the diagram: 100, bridge span structure; 101, bridge deck; 102, steel truss; 200, limiting column; 201, mirror panel; 300, bridge pier; 400, transverse support; 10, frame; 20, protective plate; 21, top plate; 22, bottom plate; 23, side plate; 24, first water-retaining edge; 25, inspection port; 30, flexible structure; 40, supporting structure; 41, bracket; 42, pulley; 43, slide rail; 50, water-retaining plate; 51, second water-retaining edge. Detailed Implementation

[0024] A bridge consists of the span structure, piers, and abutments. The span structure is the part of the bridge that directly crosses the obstacle and bears the main load. The span structure can be a bridge deck, or it can be formed by combining a bridge deck with steel trusses. Piers are located at the bottom of the span structure and provide support.

[0025] In conventional bridge designs, the bridge span structure undergoes longitudinal expansion and contraction deformation under temperature changes, concrete shrinkage and creep, or vehicle loads. Simultaneously, during this longitudinal expansion and contraction, the bridge span structure also experiences lateral movement under lateral wind forces, seismic forces, or other external loads. To ensure bridge stability, stabilizing columns can be installed on the tops of the piers on both sides of the bridge span structure to limit its lateral displacement during longitudinal expansion and contraction. Simultaneously, transverse supports corresponding to the stabilizing columns can also be installed on both sides of the bridge span structure. These transverse supports engage with the stabilizing columns to limit lateral movement during longitudinal expansion and contraction, and also slide with the stabilizing columns (with mirrored surfaces) to allow for longitudinal expansion and contraction. Note: The mirrored surfaces have a smooth surface to reduce friction between the transverse supports and the stabilizing columns.

[0026] However, in practical applications, transverse bearings often face challenges from the external environment, especially water erosion and dust contamination. Rainwater or other water sources can seep into the interior of the transverse bearings, corroding metal components or damaging the lubrication system, thereby reducing the bearing's service life. Dust particles easily adhere to the sliding contact surface, increasing frictional resistance, leading to decreased sliding performance and even jamming. Furthermore, dust can damage the sealing structure, further exacerbating the risk of water erosion. Due to the lack of effective protective measures, transverse bearings require frequent cleaning and maintenance, increasing the operating and maintenance costs of bridges.

[0027] Therefore, this application provides a waterproof and dustproof device for bridge transverse bearings. This device can prevent rainwater and dust from entering the bearings, avoid the adverse effects of rainwater and dust, and help improve the service life of the bearings and reduce maintenance costs.

[0028] refer to Figure 1 and Figure 2 The bridge transverse bearing waterproof and dustproof device provided in this application embodiment includes:

[0029] Frame 10 is fitted outside the transverse support 400. Frame 10 has a first end connected to the bridge span structure 100 and a second end away from the bridge span structure 100 along the axial direction of the transverse support 400 (the width direction of the bridge).

[0030] Protective plate 20 is provided on the side of frame 10;

[0031] The flexible structure 30 is located at the second end and is used to make the frame 10 flexibly contact the limiting column 200.

[0032] In the above scheme, the frame 10, the protective plate 20, and the flexible structure 30 constitute the protective structure of the transverse support 400. One end of the protective structure is connected and fixed to the bridge span structure 100, and the other end is in flexible contact with the limiting column 200 (the mirror panel 201). At the same time, the protective structure surrounds the transverse support 400, preventing rainwater and dust from entering the transverse support 400, avoiding rainwater corrosion of metal parts or damage to the lubrication system, and preventing dust particles from adhering to the sliding contact surface and causing a decrease in the sliding performance of the support. This avoids the adverse effects of rainwater and dust, which helps to improve the service life of the support and reduce maintenance costs. In addition, since one end of the protective structure is in flexible contact with the limiting column 200, the protective structure can achieve its protective function without affecting the relative movement of the transverse support 400 and the limiting column 200 during the longitudinal expansion and contraction of the bridge span structure 100.

[0033] In some embodiments, the bridge span structure 100 includes a bridge deck 101 and a steel truss 102 supported on the bottom of the bridge deck 101. Lateral supports 400 are provided on both sides of the steel truss 102, and the first end of the frame 10 is connected to both sides of the steel truss 102.

[0034] In some embodiments, the frame 10 is a rectangular frame 10. Of course, the shape of the frame 10 is not limited to the manner discussed above. For example, the frame 10 can also be a cylindrical frame 10, a triangular prism frame 10, etc.

[0035] In some embodiments, the frame 10 and the bridge span structure 100 are sealed together to prevent rainwater or dust from entering the transverse support 400 through the gap between the frame 10 and the bridge span structure 100.

[0036] In some embodiments, the protective plate 20 includes a top plate 21, a bottom plate 22, and two side plates 23, at least one of the top plate 21, bottom plate 22, and side plates 23 being a transparent vitrified plate. This configuration allows for protection against rain and dust while also enabling maintenance personnel to observe the working status of the support through the transparent vitrified plate.

[0037] Preferably, the top plate 21 is made of stainless steel. As the part most susceptible to external forces, stainless steel is less prone to breakage and has excellent corrosion resistance, thus ensuring a long service life. Furthermore, stainless steel has high recycling value and can be reprocessed and reused after disposal, meeting the requirements of environmental protection and sustainable development.

[0038] Preferably, both the base plate 22 and the side plate 23 are made of transparent vitrified glass. That is, maintenance personnel can observe the working status of the support through the side plate 23 and the base plate 22, thereby expanding the observation range of the maintenance personnel.

[0039] In some embodiments, the top plate 21 is provided with first water-retaining edges 24 at both ends along the axial direction of the transverse support 400. The first water-retaining edges 24 are used to restrict rainwater on the top plate 21 from flowing to the first end and the second end. This arrangement can prevent rainwater on the top plate 21 from flowing into the frame 10 from the first end and the second end and entering the transverse support 400. In a specific arrangement, the first water-retaining edges 24 can be formed by folding the top plate 21 upwards.

[0040] In some embodiments, the base plate 22 is provided with access ports 25. This arrangement allows maintenance personnel to enter the interior of the frame 10 through the access ports 25, thereby enabling maintenance of the transverse support 400. Specifically, there may be two access ports 25, located on either side of the transverse support 400. Of course, the number and location of the access ports 25 are not limited to the methods discussed above. For example, there may be three access ports 25, located on the base plate 22 and the two side plates 23, respectively.

[0041] In some embodiments, the flexible structure 30 employs a brush. The brush has excellent flexibility, allowing for flexible contact between the second end of the frame 10 and the limiting post 200 when arranged circumferentially along the second end, while simultaneously preventing dust from entering the transverse support 400. Furthermore, the brush and the limiting post 200 are not connected to each other, facilitating brush replacement and saving labor and costs. Of course, the structure of the flexible structure 30 is not limited to the methods discussed above. For example, the flexible structure 30 can also employ a rubber ring.

[0042] In some embodiments, the waterproof and dustproof device further includes a support structure 40, which is supported at the bottom of the frame 10 and is capable of moving along the longitudinal extension and contraction direction of the bridge span structure 100. This configuration improves the stability and reliability of the device. Specifically, since only the first end of the frame 10 is connected and fixed, the second end of the frame 10 may sag after prolonged use. Therefore, by providing the support structure 40, the burden on the connection structure at the first end can be reduced, preventing the second end of the frame 10 from sagging, thereby improving the stability and reliability of the device. In addition, since the support structure 40 is capable of moving relatively along the extension and contraction direction of the bridge span structure 100, the support structure 40 does not restrict the movement of the frame 10 during the longitudinal extension and contraction of the bridge span structure 100.

[0043] In some embodiments, the support structure 40 includes a bracket 41 and a pulley 42. The top of the bracket 41 is connected to the bottom of the second end of the frame 10, and the pulley 42 is connected to the bottom of the bracket 41. That is, the support structure 40 is a bracket 41 with a pulley 42, which not only provides support to the second end of the frame 10 but also allows the frame 10 to move longitudinally along with the bridge span structure 100 during longitudinal expansion and contraction. In this document, the pulley 42 moves on the top surface of the pier 300, and the direction of movement of the pulley 42 is consistent with the longitudinal expansion and contraction direction of the bridge span structure 100.

[0044] In some embodiments, the support structure 40 further includes a slide rail 43 disposed on the top surface of the pier 300. The slide rail 43 supports the pulley 42 and restricts the direction of movement of the pulley 42. This arrangement allows the pulley 42 to move under the guidance of the slide rail 43. This guiding effect effectively prevents the pulley 42 from deviating from the track or from lateral displacement, thereby significantly reducing the shaking and vibration of the pulley 42 during operation and improving the stability of the entire system. In addition, the contact surface of the slide rail 43 is relatively smooth, which can effectively reduce the wear of the pulley 42, thereby reducing the replacement frequency of the pulley 42 and helping to reduce maintenance costs.

[0045] In some embodiments, the waterproof and dustproof device further includes a water-blocking plate 50, which cantilevered from the top of the limiting column 200 to above the frame 10. The water-blocking plate 50 is used to restrict rainwater flow to the contact position between the second end and the limiting column 200. In other words, the water-blocking plate 50 acts as a canopy, covering the contact position between the second end and the limiting column 200 from above, preventing rainwater from falling onto this position and thus preventing rainwater from flowing into the transverse support 400, thereby improving the protective effect of the device. In specific installations, reinforcing ribs can be provided on the water-blocking plate 50 to prevent the cantilevered portion from sagging.

[0046] In some embodiments, a second water-retaining edge 51 is provided at the edge of the cantilevered portion of the baffle 50. The second water-retaining edge 51 is used to restrict the flow of rainwater on the baffle 50 to the protective plate 20. This arrangement can reduce the impact of rainwater on the frame 10 and the top plate 21, which helps to reduce the impact load on the frame 10 and the top plate 21 and extend their service life. Of course, in order to drain the rainwater on the baffle 50, drainage outlets can be provided at the second water-retaining edges 51 on both sides of the baffle 50 so that the rainwater can be drained to both sides of the frame 10 and the top plate 21. In a specific arrangement, the baffle 50 can be made of stainless steel plate, and the second water-retaining edge 51 can be formed by folding the baffle 50 upwards.

[0047] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0048] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0049] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0050] One or more embodiments in this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this specification should be included within the protection scope of this application.

[0051] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A waterproof and dustproof device for bridge transverse supports, wherein the transverse supports are disposed on both sides of the bridge span structure and are used to cooperate with limiting columns to limit the deviation of the bridge span structure from the bridge center during longitudinal expansion and contraction, characterized in that, The waterproof and dustproof device includes: A frame, which is sleeved outside the transverse support, has a first end connected to the bridge span structure and a second end away from the bridge span structure along the axial direction of the transverse support; A protective plate, wherein the protective plate is disposed on the side of the frame; A flexible structure is disposed at the second end, and the flexible structure is used to make the frame flexibly contact the limiting column.

2. The waterproof and dustproof device for bridge transverse supports according to claim 1, characterized in that, The protective panel includes a top panel, a bottom panel, and two side panels. The top panel is made of stainless steel, while the bottom panel and the side panels are made of transparent vitrified glass.

3. The waterproof and dustproof device for bridge transverse supports according to claim 2, characterized in that, The top plate is provided with a first water-blocking edge at both ends along the axial direction of the transverse support. The first water-blocking edge is used to restrict the flow of rainwater on the top plate to the first end and the second end.

4. The waterproof and dustproof device for bridge transverse supports according to claim 2, characterized in that, The base plate is equipped with an inspection port.

5. The waterproof and dustproof device for bridge transverse supports according to claim 1, characterized in that, The flexible structure uses a brush.

6. The waterproof and dustproof device for bridge transverse supports according to claim 1, characterized in that, The waterproof and dustproof device also includes: A support structure is provided, which is supported at the bottom of the frame and is capable of moving along the extension and retraction direction of the bridge span structure.

7. The waterproof and dustproof device for bridge transverse supports according to claim 6, characterized in that, The support structure includes a bracket and a pulley, with the top of the bracket connected to the bottom of the second end of the frame and the pulley connected to the bottom of the bracket.

8. The waterproof and dustproof device for bridge transverse supports according to claim 7, characterized in that, The support structure also includes a slide rail, which is disposed on the top surface of the pier and is used to support the pulley and restrict the direction of movement of the pulley.

9. The waterproof and dustproof device for bridge transverse supports according to claim 1, characterized in that, The waterproof and dustproof device also includes: A water-blocking plate is provided, which extends from the top of the limiting column to the top of the frame. The water-blocking plate is used to restrict rainwater flow to the contact position between the second end and the limiting column.

10. The waterproof and dustproof device for bridge transverse supports according to claim 9, characterized in that, The edge of the cantilevered portion of the water baffle is provided with a second water-retaining edge, which is used to restrict rainwater on the water baffle from flowing towards the protective plate.

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