Intercity rail transit mixed beam allocation rigid frame bridge

Abstract

The utility model discloses an intercity rail transit mixed beam matching rigid frame bridge which comprises two adjacent bridge bodies and further comprises a protection mechanism arranged on the two bridge bodies and used for protecting rubber strips, and the protection mechanism comprises protection grooves formed in the opposite ends of the two bridge bodies. U-shaped protection plates are arranged in the two protection grooves, the two opposite sides and the lower side walls of the U-shaped protection plates are connected with the protection grooves through a plurality of telescopic assemblies, and a plurality of filtering holes are formed in the sides, close to the rubber strips, of the U-shaped protection plates. According to the utility model, through the arrangement of the protection mechanism and the protection effect of the U-shaped protection plate, large particle impurities such as gravels and the like are prevented from being in direct contact with the rubber strip in the expansion joint, so that the problem that the large particle impurities such as the gravels and the like are rolled by vehicles to damage the rubber strip is avoided; rainwater is prevented from being poured into a bridgehead protection slope which is not fully protected, and the use safety of the intercity rail bridge is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of intercity rail transit construction, in particular to an intercity rail transit mixed-beam rigid frame bridge. Background Art

[0002] In intercity rail transit, when constructing bridges, in order to demonstrate good mechanical properties overall, simple structure, clear force and save materials, a mixed-beam rigid frame bridge design is adopted. It mainly adopts a mixed-beam scheme, which improves the construction efficiency of the bridge and reduces the construction cost of the bridge.

[0003] During the bridge construction process, in order to enable the bridge deck to expand and contract, expansion joints are set between adjacent bridge decks. The function of the expansion joints is to adjust the displacement and connection between the superstructures caused by vehicle loads and bridge construction materials, so that vehicles can pass smoothly without jumps and noise. At the same time, rubber strips are filled in the expansion joints of the bridges. The air tightness and elastic deformability of rubber are used to prevent rainwater leakage, thereby maintaining the normal function of the bridge expansion joints and roads and preventing damage.

[0004] During the actual use of the bridge, large pieces of debris such as gravel on the road surface fall onto the rubber sealing strips, which will be damaged when squeezed by vehicles. When heavy rain falls, a large amount of rainwater will flow through the seams into the bridge head slope that is not fully protected, causing a large amount of water damage to the slope, posing a greater safety risk to the use of intercity rail bridges.

[0005] Therefore, there is an urgent need for an intercity rail transit mixed-beam rigid frame bridge to solve the above problems. Utility Model Content

[0006] The utility model aims to provide an inter-city rail transit mixed-beam rigid frame bridge to solve the problem in the above-mentioned background technology that the rubber strips in the expansion joints of the bridge are easily squeezed and damaged by large-diameter particles such as gravel.

[0007] To achieve the above-mentioned object, the utility model provides the following technical solutions: an intercity rail transit mixed-beam rigid frame bridge, comprising two adjacent bridge bodies, expansion joints are arranged at opposite ends of the two bridge bodies, rubber strips are arranged in the expansion joints, and also includes a protection mechanism arranged on the two bridge bodies for protecting the rubber strips;

[0008] The protection mechanism includes a protection groove opened on the opposite ends of the two bridge bodies, and U-shaped protection plates are arranged in the two protection grooves. The opposite sides and lower side walls of the U-shaped protection plates are connected to the protection grooves through multiple telescopic components. The U-shaped protection plate is provided with multiple filtering holes on the side close to the rubber strip, and the U-shaped protection plate is provided with inclined surfaces on the opposite sides, and the two inclined surfaces are arranged in a "V" shape.

[0009] The telescopic assembly includes a telescopic tube fixedly connected to the protective groove, a telescopic rod slidably connected to the telescopic tube, one end of the telescopic rod is connected to the U-shaped protective plate, one end of the telescopic rod located inside the telescopic tube is fixedly connected to the telescopic plate, the other side of the telescopic plate is fixedly connected to a first spring, and the other end of the first spring is connected to the bottom wall of the telescopic tube.

[0010] The U-shaped protective plate is provided with a cleaning mechanism for cleaning it, and the cleaning mechanism includes a sliding plate slidably connected to the U-shaped protective plate, one side of the sliding plate is fixedly connected to a cleaning plate, the cleaning plate is matched with the inner wall of the U-shaped protective plate, and the sliding plate is provided with a dredging mechanism for dredging the filter holes.

[0011] The dredging mechanism includes a plurality of dredging tubes fixedly connected to one side of the sliding plate close to the filter hole, each of the dredging tubes is slidably connected to a dredging rod, each of the dredging rods is matched with the filter hole, and each of the dredging rods has a conical surface at one end close to the filter hole, and a second spring is fixedly connected to the bottom wall of each of the dredging tubes, and the other end of each of the second springs is connected to the dredging rod.

[0012] The bridge body is provided with a driving mechanism for driving the sliding plate, and the driving mechanism includes a driving rod, one end of which is fixedly connected to a threaded rod, a threaded hole is opened on the side of the sliding plate away from the filtering hole, the threaded hole is matched with the threaded rod, and the other end of the driving rod is fixedly connected to a driving disk.

[0013] The U-shaped protective plate is provided with a sliding assembly for facilitating the sliding of the sliding plate. The sliding assembly includes a T-slot opened on two opposite side walls of the U-shaped protective plate, and T-strips are slidably connected to the two T-slots. The opposite ends of the two T-strips are connected to the sliding plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model provides a protection mechanism and utilizes the protection effect of the U-shaped protection plate to allow large-sized debris such as gravel to fall onto the U-shaped protection plate, thereby preventing the large-sized debris such as gravel from directly contacting the rubber strip in the expansion joint, thereby avoiding the problem of damage to the rubber strip caused by the large-sized debris such as gravel being crushed by vehicles, preventing rainwater from pouring into the bridge head slope that is not fully protected, and further improving the safety of intercity rail bridge use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the protection mechanism of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the telescopic component of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the cleaning mechanism and the dredging mechanism of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the driving mechanism of the utility model.

[0021] In the figure: 101, bridge body; 102, expansion joint; 103, rubber strip; 201, protection groove; 202, U-shaped protection plate; 203, filter hole; 204, inclined surface; 301, telescopic tube; 302, telescopic rod; 303, telescopic plate; 304, first spring; 401, sliding plate; 402, cleaning plate; 501, clearing tube; 502, clearing rod; 503, conical surface; 504, second spring; 601, driving rod; 602, threaded rod; 603, threaded hole; 604, driving disk; 701, T-slot; 702, T-strip. DETAILED DESCRIPTION

[0022] 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4The utility model provides an intercity rail transit mixed bundle rigid frame bridge, comprising two adjacent bridge bodies 101, expansion joints 102 are arranged at opposite ends of the two bridge bodies 101, rubber strips 103 are arranged in the expansion joints 102, and a protection mechanism is arranged on the two bridge bodies 101 for protecting the rubber strips 103;

[0024] The protection mechanism includes a protection groove 201 opened on the opposite ends of the two bridge bodies 101, and a U-shaped protection plate 202 is arranged in the two protection grooves 201. The opposite sides and the lower side wall of the U-shaped protection plate 202 are connected to the protection groove 201 through a plurality of telescopic components. A plurality of filtering holes 203 are opened on the side of the U-shaped protection plate 202 close to the rubber strip 103, and inclined surfaces 204 are opened on the opposite sides of the U-shaped protection plate 202. The two inclined surfaces 204 are arranged in a "V" shape;

[0025] It should be noted here that: through the provision of the protection mechanism and the protection function of the U-shaped protection plate 202, large-sized particles such as gravel can fall on the U-shaped protection plate 202, thereby preventing large-sized particles such as gravel from directly contacting the rubber strip 103 in the expansion joint 102, thereby avoiding the problem of damage to the rubber strip 103 caused by large-sized particles such as gravel being crushed by vehicles, preventing rainwater from pouring into the bridge head slope that is not fully protected, and further improving the safety of the intercity rail bridge.

[0026] The telescopic assembly includes a telescopic tube 301 fixedly connected to the protective groove 201, a telescopic rod 302 is slidably connected to the telescopic tube 301, one end of the telescopic rod 302 is connected to the U-shaped protective plate 202, one end of the telescopic rod 302 located inside the telescopic tube 301 is fixedly connected to a telescopic plate 303, the other side of the telescopic plate 303 is fixedly connected to a first spring 304, and the other end of the first spring 304 is connected to the bottom wall of the telescopic tube 301;

[0027] It should be noted here that: by providing the telescopic component, the U-shaped protective plate 202 is provided with telescopic deformation capability, thereby improving the anti-extrusion performance of the U-shaped protective plate 202.

[0028] The U-shaped protective plate 202 is provided with a cleaning mechanism for cleaning the same, the cleaning mechanism comprising a sliding plate 401 slidably connected to the U-shaped protective plate 202, one side of the sliding plate 401 is fixedly connected with a cleaning plate 402, the cleaning plate 402 is matched with the inner wall of the U-shaped protective plate 202, and the sliding plate 401 is provided with a dredging mechanism for dredging the filter hole 203;

[0029] It should be noted here that: by setting up the cleaning mechanism, it is convenient to scrape and clean the mud, sand, stones and other debris accumulated on the U-shaped protective plate 202, thereby improving the surface cleanliness of the U-shaped protective plate 202, thereby ensuring the protective effect of the rubber strip 103.

[0030] The dredging mechanism includes a plurality of dredging tubes 501 fixedly connected to a side of the sliding plate 401 close to the filter hole 203, each dredging tube 501 is slidably connected to a dredging rod 502, each dredging rod 502 is matched with the filter hole 203, and each dredging rod 502 is provided with a conical surface 503 at one end close to the filter hole 203, and a second spring 504 is fixedly connected to the bottom wall of each dredging tube 501, and the other end of each second spring 504 is connected to the dredging rod 502;

[0031] It should be noted here that: by setting up the dredging mechanism, the filtering hole 203 is cleaned, thereby ensuring the smooth flow of rainwater.

[0032] The bridge body 101 is provided with a driving mechanism for driving the sliding plate 401, and the driving mechanism includes a driving rod 601, one end of which is fixedly connected to a threaded rod 602, a threaded hole 603 is provided on a side of the sliding plate 401 away from the filtering hole 203, the threaded hole 603 is matched with the threaded rod 602, and the other end of the driving rod 601 is fixedly connected to a driving disk 604;

[0033] It should be noted here that: through the setting of the driving mechanism, it is convenient to drive the sliding plate 401 to slide on the U-shaped protective plate 202.

[0034] The U-shaped protective plate 202 is provided with a sliding assembly for facilitating the sliding of the sliding plate 401. The sliding assembly includes T-shaped slots 701 provided on two opposite side walls of the U-shaped protective plate 202. T-shaped bars 702 are slidably connected to the two T-shaped slots 701. The opposite ends of the two T-shaped bars 702 are connected to the sliding plate 401.

[0035] It should be noted here that: the setting of the sliding assembly provides a guiding and limiting function for the movement of the sliding plate 401 .

[0036] Working principle: When large-sized debris such as gravel on the bridge road surface falls into the expansion joint 102, due to the protective effect of the U-shaped protective plate 202, the large-sized debris such as gravel can fall on the U-shaped protective plate 202, thereby preventing the large-sized debris such as gravel from directly contacting the rubber strip 103 in the expansion joint 102, thereby avoiding the problem of the rubber strip 103 being damaged by the large-sized debris such as gravel being crushed by vehicles, and preventing rainwater from pouring into the bridge head slope that is not fully protected, further improving the safety of the intercity rail bridge;

[0037] The rainwater flowing down from the expansion joint 102 will flow from the filtering holes 203 on the U-shaped protective plate 202 to the top of the rubber strip 103, and will flow out from both sides of the bridge under the guidance of the expansion joint 102. During long-term use, the mud, sand, stones and other debris brought by the rainwater will accumulate on the U-shaped protective plate 202. In order to ensure the smooth flow of rainwater, the U-shaped protective plate 202 needs to be cleaned. When cleaning the U-shaped protective plate 202, the threaded rod 602 at one end of the driving rod 601 is screwed into the threaded hole 603 through the threaded engagement transmission action, and then the driving disk 604 is held, and under the guidance of the sliding component, the cleaning plate 402 on one side of the sliding plate 401 is driven to move on the surface of the U-shaped protective plate 202, so that the mud, sand, stones and other debris accumulated on the U-shaped protective plate 202 are scraped and cleaned, thereby improving the surface cleanliness of the U-shaped protective plate 202, thereby ensuring the protective effect of the rubber strip 103.

[0038] And during the movement of the sliding plate 401, the dredging rod 502 will be driven to move synchronously. When the dredging rod 502 is against the filter hole 203, the interaction force of the conical surface 503 will push the dredging rod 502 to shrink into the dredging tube 501. At this time, the second spring 504 is deformed by the force to form an elastic force. When the dredging rod 502 passes over the filter hole 203, the elastic force of the second spring 504 will push the dredging rod 502 to be inserted into the filter hole 203 again, thereby realizing the cleaning of the filter hole 203 and ensuring the smooth flow of rainwater.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An intercity rail transit mixed-beam rigid frame bridge, comprising: Two adjacent bridge bodies (101), expansion joints (102) being provided at opposite ends of the two bridge bodies (101), and rubber strips (103) being provided in the expansion joints (102); It is characterized by further comprising: A protection mechanism provided on two bridge bodies (101) for protecting the rubber strip (103); The protection mechanism comprises a protection groove (201) provided on opposite ends of two bridge bodies (101), U-shaped protection plates (202) being provided in the two protection grooves (201), the opposite sides and lower side walls of the U-shaped protection plates (202) being connected to the protection grooves (201) via a plurality of telescopic components, a plurality of filtering holes (203) being provided on a side of the U-shaped protection plate (202) close to the rubber strip (103), and inclined surfaces (204) being provided on opposite sides of the U-shaped protection plate (202), the two inclined surfaces (204) being arranged in a "V" shape.

2. The intercity rail transit mixed-beam rigid frame bridge according to claim 1, characterized in that: The telescopic assembly comprises a telescopic tube (301) fixedly connected to the protective groove (201); a telescopic rod (302) is slidably connected to the telescopic tube (301); one end of the telescopic rod (302) is connected to the U-shaped protective plate (202); one end of the telescopic rod (302) located inside the telescopic tube (301) is fixedly connected to a telescopic plate (303); the other side of the telescopic plate (303) is fixedly connected to a first spring (304); the other end of the first spring (304) is connected to the bottom wall of the telescopic tube (301).

3. The intercity rail transit mixed-beam rigid frame bridge according to claim 1, characterized in that: The U-shaped protective plate (202) is provided with a cleaning mechanism for cleaning the same, the cleaning mechanism comprising a sliding plate (401) slidably connected to the U-shaped protective plate (202), one side of the sliding plate (401) being fixedly connected with a cleaning plate (402), the cleaning plate (402) being arranged to match the inner wall of the U-shaped protective plate (202), and the sliding plate (401) is provided with a dredging mechanism for dredging the filter hole (203).

4. The intercity rail transit mixed-beam rigid frame bridge according to claim 3, characterized in that: The dredging mechanism comprises a plurality of dredging tubes (501) fixedly connected to a side of the sliding plate (401) close to the filter hole (203); each of the dredging tubes (501) is slidably connected to a dredging rod (502); each of the dredging rods (502) is matched with the filter hole (203); one end of each of the dredging rods (502) close to the filter hole (203) is provided with a conical surface (503); a second spring (504) is fixedly connected to the bottom wall of each of the dredging tubes (501); the other end of each of the second springs (504) is connected to the dredging rod (502).

5. The intercity rail transit mixed-beam rigid frame bridge according to claim 1, characterized in that: The bridge body (101) is provided with a driving mechanism for driving the sliding plate (401), the driving mechanism comprising a driving rod (601), one end of the driving rod (601) being fixedly connected to a threaded rod (602), a threaded hole (603) being provided on a side of the sliding plate (401) away from the filtering hole (203), the threaded hole (603) being matched with the threaded rod (602), and the other end of the driving rod (601) being fixedly connected to a driving disk (604).

6. The intercity rail transit mixed-beam rigid frame bridge according to claim 1, characterized in that: The U-shaped protective plate (202) is provided with a sliding assembly for facilitating the sliding of the sliding plate (401), the sliding assembly comprising T-shaped slots (701) provided on two opposite side walls of the U-shaped protective plate (202), T-shaped bars (702) being slidably connected to the two T-shaped slots (701), and opposite ends of the two T-shaped bars (702) being connected to the sliding plate (401).

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