Multifunctional beam seam cover plate suitable for vertical lifting movable bridge and mounting method of multifunctional beam seam cover plate

Abstract

The invention relates to a multifunctional beam seam cover plate suitable for a vertical lifting movable bridge and a mounting method of the multifunctional beam seam cover plate. The movable bridge comprises an L-shaped cover plate, the section of the L-shaped cover plate is in an L shape, the L-shaped cover plate comprises a long edge and a short edge, a round hole matched with a pin shaft is formed in the intersection point of the two edges, and the L-shaped cover plate is assembled on a fixed bridge through the cooperation of the round hole and the pin shaft and freely rotates around the pin shaft. The long edge of the L-shaped cover plate is in lap joint with the bridge surface of the movable bridge and covers a beam seam between the fixed bridge and the movable bridge, when the movable bridge is lifted and opened, the L-shaped cover plate freely rotates around the pin shaft to be separated from the movable bridge, and when the movable bridge is descended and closed, the short edge of the L-shaped cover plate is in contact with the movable bridge and rotates along with the movable bridge until the long edge is in contact with the bridge surface of the movable bridge so as to stop moving. When the movable bridge is closed, the L-shaped cover plate plays a role in penetrating through the bridge floor, and driving safety and smoothness are guaranteed; when the movable bridge is lifted, the L-shaped cover plate is turned over to form a natural barrier, traffic on the bridge can be blocked, and vehicles are prevented from falling off.

Description

Technical Field

[0001] The present invention belongs to the technical field of bridge engineering, and particularly relates to a multifunctional beam joint cover plate applicable to a vertical lifting and opening bridge and an installation method thereof. Background Art

[0002] A vertical lifting and opening bridge is a special type of bridge structure. Its main beam can lift and open like an elevator to balance the needs of waterway and land transportation. When the main beam rises, ships can pass under the bridge; when the main beam descends, vehicles can pass on the bridge. It should be noted that when the main beam rises, the bridge deck is disconnected. Generally, a warning tape needs to be set up manually at the bridgehead to prohibit vehicle passage, and even a temporary guardrail needs to be set up to prevent vehicles from accidentally falling out of control. After the main beam descends, the warning measures are withdrawn and traffic is restored.

[0003] Generally, a beam joint is provided between the main beams of a bridge, as Figure 1 shown, to adapt to the non-synergistic deformation of different structural systems. A cover plate (usually made of steel) is usually provided on the bridge deck at the beam joint to ensure the safety and smoothness of vehicle driving (similarly for pedestrians). In a conventional bridge, the setting of the cover plate is extremely common and easy to implement. However, for a vertical lifting and opening bridge, the cover plate needs to adapt to the lifting of the main beam, and its structural type is unconventional. There is no good beam joint cover plate structure applicable to a vertical lifting and opening bridge in existing projects, and there is no unified standard, so special design is required. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the above background art, and provide a multifunctional beam joint cover plate applicable to a vertical lifting and opening bridge and an installation method thereof. This cover plate can automatically flip with the lifting and lowering of the opening bridge. When the opening bridge is closed, the cover plate plays the role of connecting the bridge deck, ensuring the safety and smoothness of vehicle driving; when the opening bridge rises, the cover plate flips to form a natural barrier, which can block traffic on the bridge and prevent vehicles from falling.

[0005] The technical solution adopted by the present invention is: a multifunctional beam joint cover plate applicable to a vertical lifting and opening bridge, including an L-shaped cover plate. The cross-sectional shape of the L-shaped cover plate is L-shaped. The L-shaped cover plate includes a long side and a short side. A round hole matching with a pin shaft is opened at the intersection of the two sides. The L-shaped cover plate is assembled on the fixed bridge through the round hole and the pin shaft and rotates freely around the pin shaft. The long side is used as the beam joint cover plate. When the opening bridge is in a closed state, the long side overlaps with the bridge deck of the opening bridge and covers the beam joint between the fixed bridge and the opening bridge. When the opening bridge is lifted and opened, the L-shaped cover plate rotates freely around the pin shaft and disengages from the opening bridge. When the opening bridge descends and closes, the short side of the L-shaped cover plate contacts the opening bridge and rotates accordingly until the long side contacts the bridge deck of the opening bridge and then stops moving.

[0006] More preferably, a certain depth is hollowed out in the middle of the end of the opening bridge to form a clamp-shaped structure, and the overhanging length of the top edge of the clamp-shaped structure is greater than that of the bottom edge. The dimensions of the overhanging lengths of the top and bottom edges of the clamp-shaped structure match the movement trajectory of the L-shaped cover plate, so that when the opening bridge vertically rises and falls, it drives the L-shaped cover plate to rotate and disengages the contact when the L-shaped cover plate rotates to a specific angle.

[0007] More preferably, a damping hinge is provided between the L-shaped cover plate and the fixed bridge to ensure a smooth, gentle and quiet rotation process around the pin shaft.

[0008] More preferably, a rubber pad or a flexible cushion layer of a similar material is provided between the contact surface of the L-shaped cover plate and the opening bridge to play a buffering role.

[0009] More preferably, the pin shaft is a round bar with threads provided at both ends. After the pin shaft is inserted into the pin shaft hole reserved in the fixed bridge, nuts and lock nuts are installed at both ends to fix the pin shaft.

[0010] More preferably, ear plates are provided at the top of both ends of the fixed bridge in contact with the opening bridge for supporting the pin shaft. A pin hole matching the pin shaft is provided on the ear plate, and the ear plate protrudes from the end of the fixed bridge to avoid hindering the free rotation of the short side of the L-shaped cover plate.

[0011] More preferably, a support column is further included. The support column is a conventional structural column. One support column is placed on each side of the left and right of the fixed bridge deck for supporting the L-shaped cover plate when it rotates to the maximum angle. When not in use, the support column is placed in the green belt or on the top surface of the anti-collision guardrail to avoid affecting the passage of people and vehicles on the bridge.

[0012] More preferably, a rubber pad or a flexible cushion layer of a similar material is provided on the top surface of the support column to play a buffering and protective role for the L-shaped cover plate.

[0013] More preferably, a weight is configured at the end of the long side for the L-shaped cover plate to rotate and reset. A groove matching the shape of the weight is provided on the opening bridge. When the opening bridge is in the closed state, the weight of the opening bridge is located in the groove.

[0014] A method for installing a multi-functional beam joint cover plate suitable for a vertically lifting and opening bridge, comprising the following steps: When the opening bridge is in the closed state, install the L-shaped cover plate between the beam joints of the fixed bridge and the opening bridge through a pin shaft. Its long side overlaps on the bridge surface of the opening bridge, and the opening bridge can pass normally. The L-shaped cover plate plays the role of penetrating the bridge surface. As the opening bridge is lifted and opened, the L-shaped cover plate rotates counterclockwise around the pin shaft until its long side contacts the support column and stops moving. The L-shaped cover plate reaches its limit opening and closing angle. As the opening bridge descends and closes, the short side of the L-shaped cover plate contacts the opening bridge and rotates clockwise therewith until its long side contacts the bridge surface of the opening bridge and stops moving. Then the L-shaped cover plate returns to its initial state again, completing one action cycle. After that, during the operation of the opening bridge, there are continuous lifting and lowering changes, and the L-shaped cover plate also continuously repeats the above action cycle accordingly.

[0015] In the present invention, the L-shaped cover plate can automatically flip with the lifting and lowering of the opening bridge and achieve different beneficial functions in each state: When the opening bridge is closed, the L-shaped cover plate plays the role of penetrating the bridge surface, ensuring the safety and smoothness of vehicle driving; When the opening bridge is raised, the L-shaped cover plate flips to form a natural barrier, which can block the traffic on the bridge and prevent vehicles from falling. The flipping system of the L-shaped cover plate is a self-driven structure, and its power completely comes from the lifting kinetic energy of the main beam of the opening bridge, without the need to configure an independent power source, which means that the device is simple, reliable and durable. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of an existing lifting opening bridge;

[0017] Figure 2 It is a schematic structural diagram of the L-shaped cover plate of the present invention;

[0018] Figure 3 It is a side view of the L-shaped cover plate of the present invention;

[0019] Figure 4 It is a schematic structural diagram of the pin shaft;

[0020] Figure 5 It is a schematic diagram after installing the L-shaped cover plate, the pin shaft and the support column on the fixed bridge (for easy observation, only half of the L-shaped cover plate is shown);

[0021] Figure 6 It is a schematic diagram when all structures are in place and in the initial state (for easy observation, only half of the L-shaped cover plate is shown);

[0022] Figure 7 It is a schematic diagram of the initial state of the L-shaped cover plate with vehicles passing normally on the bridge;

[0023] Figure 8 It is a schematic diagram when the opening bridge starts to be lifted, the long side of the L-shaped cover plate remains in contact with the top side of the clamping structure of the opening bridge and rotates counterclockwise therewith;

[0024] Figure 9 Schematic diagram of the L-shaped cover plate continuing to rotate counterclockwise during the lifting process of the opening bridge, and the short side entering the clamp-shaped structure range of the opening bridge;

[0025] Figure 10 During the lifting process of the opening bridge, the L-shaped cover plate continues to rotate counterclockwise, and the short side contacts the bottom side of the opening bridge clamp structure. At this time, the power input path of the opening bridge to drive the L-shaped cover plate to rotate is transferred from the long side to the short side, and then the long side begins to separate from the top side of the opening bridge clamp structure.

[0026] Figure 11 During the lifting process of the opening bridge, the L-shaped cover plate continues to rotate counterclockwise, and the short side is about to separate from the bottom edge of the opening bridge clamp structure;

[0027] Figure 12 During the lifting process of the opening bridge, the short side of the L-shaped cover plate has been separated from the bottom side of the clamp-shaped structure of the opening bridge, but under the action of its own weight, the L-shaped cover plate continues to rotate counterclockwise until its long side contacts the supporting column and stops moving. At this time, the L-shaped cover plate reaches its limit opening and closing angle, that is, it is in the limit opening state;

[0028] Figure 13 It is a schematic diagram of the L-shaped cover in the extreme opening state;

[0029] Figure 14 As the opening bridge begins to descend, the short side of the L-shaped cover plate continues to rotate counterclockwise at a certain angle by its own weight after being separated from the bottom edge of the opening bridge clamp structure. During the descent of the opening bridge, the short side of the L-shaped cover plate will not touch the bottom edge of the opening bridge clamp structure.

[0030] Figure 15 It is a schematic diagram showing that during the lowering process of the opening bridge, the short side of the L-shaped cover plate contacts the top side of the clamp-shaped structure of the opening bridge and then rotates clockwise;

[0031] Figure 16 Schematic diagram of the short side of the L-shaped cover plate keeping in contact with the top edge of the clamp-shaped structure of the opening bridge during the descent of the opening bridge and continuing to rotate clockwise;

[0032] Figure 17 The schematic diagram shows that the opening bridge stops moving after descending to the closed position, but the L-shaped cover continues to rotate clockwise under its own weight;

[0033] Figure 18 The schematic diagram shows that the opening bridge is in a closed state, and the L-shaped cover continues to rotate clockwise under the action of its own weight until it returns to its initial state. DETAILED DESCRIPTION

[0034] The following further describes the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted here that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation on the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] Embodiment 1

[0036] As Figure 2-6 shown, a multifunctional beam joint cover plate applicable to a vertically lifting and opening bridge of the present invention includes an L-shaped cover plate 1. The cross-sectional shape of the L-shaped cover plate 1 is L-shaped. The L-shaped cover plate 1 includes a long side 11 and a short side 12. The included angle between the two sides is 90°. A round hole matching the pin shaft 2 is opened at the intersection of the two sides. The L-shaped cover plate 1 is assembled on the fixed bridge 4 through the round hole and the pin shaft 2 and rotates freely around the pin shaft 2. The long side 11 is used as the beam joint cover plate. When the opening bridge 5 is in the closed state, the long side 11 overlaps with the bridge deck of the opening bridge 5 and covers the beam joint 6 between the fixed bridge 4 and the opening bridge 5. When the opening bridge 5 is lifted and opened, the L-shaped cover plate 1 rotates freely around the pin shaft 2 and disengages from the opening bridge 5. When the opening bridge 5 descends and closes, the short side 12 of the L-shaped cover plate 1 contacts the opening bridge 5 and rotates accordingly until the long side 11 contacts the bridge deck of the opening bridge 5 and then stops moving.

[0037] In the above technical solution, a certain depth is hollowed out in the middle of the end of the opening bridge 5 to form a clamp-shaped structure 8, and the overhanging length of the top side of the clamp-shaped structure 8 is greater than the overhanging length of the bottom side. The dimensions of the overhanging lengths of the top side and the bottom side of the clamp-shaped structure 8 match the movement trajectory of the L-shaped cover plate 1, so that it drives the L-shaped cover plate 1 to rotate when the opening bridge 5 vertically lifts and disengages the contact when the L-shaped cover plate 1 rotates to a specific angle.

[0038] In the above technical solution, a damping hinge is provided between the L-shaped cover plate 1 and the fixed bridge 4 to ensure the smooth, gentle and quiet rotation process around the pin shaft.

[0039] In the above technical solution, a rubber pad or a flexible cushion layer of a similar material is provided between the contact surface of the L-shaped cover plate 1 and the opening bridge 5 to play a buffering role.

[0040] In the above technical solution, the pin shaft 2 is a round bar with threads provided at both ends. After it is inserted into the pin shaft hole reserved in the fixed bridge 4, nuts and lock nuts are installed at both ends to fix the pin shaft 2.

[0041] In the above technical solution, ear plates are provided at the top of both ends of the fixed bridge 4 in contact with the opening bridge 5 to support the pin shaft 2. Pin holes matching the pin shaft are opened on the ear plates, and the ear plates protrude from the ends of the fixed bridge 4 to avoid hindering the free rotation of the short side of the L-shaped cover plate.

[0042] In the above technical solution, a support column 3 is further included. The support column 3 is a conventional structural column. One support column 3 is placed on each of the left and right sides of the deck of the fixed bridge 4 to support the L-shaped cover plate 1 when it rotates to the maximum angle. When not in use, the support column 3 is placed in the green belt or on the top surface of the anti-collision guardrail to avoid affecting the passage of people and vehicles on the bridge.

[0043] In the above technical solution, a rubber pad or a flexible cushion layer of a similar material is provided on the top surface of the support column 3 to play a buffering and protective role for the L-shaped cover plate 1.

[0044] In the above technical solution, a weight 13 is arranged at the end of the long side 11 to facilitate the rotation and reset of the L-shaped cover plate 1. A groove 7 matching the shape of the weight 13 is provided on the opening bridge 5. When the opening bridge 5 is in the closed state, the weight 13 of the opening bridge is located in the groove 7.

[0045] Among them, the material of the L-shaped cover plate 1 is selected from steel or other high-strength materials. The material of the pin shaft 2 can be selected from steel or other high-strength materials. The material of the support column 3 can be concrete or steel.

[0046] It should be noted that the specific structures at the ends of the fixed bridge 4 and the opening bridge 5 are not special materials or processes, but specific shapes and dimensions, which are very easy to achieve in engineering.

[0047] Embodiment 2

[0048] As Figures 7 to 18 shown, an installation method of a multi-functional beam joint cover plate applicable to a vertically lifting opening bridge includes the following steps: When the opening bridge 4 is in the closed state, the L-shaped cover plate 1 is installed between the beam joint 6 of the fixed bridge 4 and the opening bridge 5 through the pin shaft 2, and its long side 11 overlaps on the deck of the opening bridge 5 (this state is defined as the initial state). At this time, the opening bridge 5 can pass normally, and the L-shaped cover plate 1 plays the role of connecting the deck to ensure the safety and smoothness of driving. As the opening bridge 5 is lifted and opened, the L-shaped cover plate 1 rotates counterclockwise around the pin shaft 2 until its long side 11 contacts the support column 3 and then stops moving. At this time, the L-shaped cover plate 1 reaches its limit opening and closing angle (this state is defined as the limit opening state). At this time, the L-shaped cover plate 1 forms a natural barrier, which can block the traffic on the bridge and prevent vehicles from falling. As the opening bridge 5 descends and closes, the short side 12 of the L-shaped cover plate 1 first contacts the opening bridge 5 and then rotates clockwise until its long side 11 contacts the deck of the opening bridge 5 and then stops moving, then the L-shaped cover plate 1 returns to the initial state again, that is, a cycle of actions is completed. After that, the opening bridge 5 continuously changes in height during operation, and the L-shaped cover plate 1 also continuously repeats the above cycle of actions. In short, the L-shaped cover plate 1 can automatically complete the flipping with the lifting of the main beam of the opening bridge 5 and realize different beneficial functions in each state.

[0049] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

Claims

1. A multifunctional beam seam cover suitable for a vertical lifting bascule bridge, characterized in that: The invention comprises an L-shaped cover plate (1), wherein the L-shaped cover plate (1) has an L-shaped cross-section, comprises a long side (11) and a short side (12), and a circular hole matching the pin shaft (2) is provided at the intersection of the two sides. The L-shaped cover plate (1) is assembled on the fixed bridge (4) through the circular hole and cooperates with the pin shaft (2) to freely rotate around the pin shaft (2). When the opening bridge (5) is in a closed state, the long side (11) overlaps the bridge deck of the opening bridge (5) and covers the beam gap (6) between the fixed bridge (4) and the opening bridge (5). When the opening bridge (5) is lifted and opened, the L-shaped cover plate (1) freely rotates around the pin shaft (2) and disengages from the opening bridge (5). When the opening bridge (5) is lowered and closed, the short side (12) of the L-shaped cover plate (1) contacts the opening bridge (5), and then rotates until the long side (11) contacts the bridge deck of the opening bridge (5), thereby stopping the movement.

2. The multifunctional beam seam cover plate suitable for vertical lifting bascule bridge according to claim 1 is characterized in that: The middle of the end of the opening bridge (5) is hollowed out to a certain depth to form a clamp-shaped structure (8), and the top edge cantilever length of the clamp-shaped structure (8) is greater than the bottom edge cantilever length. The dimensions of the top and bottom edge cantilever lengths of the clamp-shaped structure (8) match the movement trajectory of the L-shaped cover plate (1), so that when the opening bridge (5) is vertically lifted, the L-shaped cover plate (1) is driven to rotate and the L-shaped cover plate (1) is disengaged when the L-shaped cover plate (1) rotates to a specific angle.

3. The multifunctional beam seam cover plate suitable for vertical lifting bascule bridge according to claim 1 is characterized in that: A damping hinge is arranged between the L-shaped cover plate (1) and the fixed bridge (4).

4. The multifunctional beam seam cover plate suitable for a vertical lifting bascule bridge according to claim 1 is characterized in that: A rubber pad is provided between the contact surface of the L-shaped cover plate (1) and the opening bridge (5).

5. The multifunctional beam seam cover plate suitable for vertical lifting bascule bridge according to claim 1 is characterized in that: The pin shaft (2) is a round bar with threads at both ends. After the pin shaft (2) is inserted into the pin shaft hole reserved in the fixed bridge (4), nuts and caps are installed at both ends to fix the pin shaft (2).

6. The multifunctional beam seam cover plate suitable for vertical lifting bascule bridge according to claim 1 is characterized in that: The tops of the two ends of the fixed bridge (4) in contact with the opening bridge (5) are provided with ear plates for supporting the pin shaft (2), the ear plates are provided with pin holes matching the pin shaft, and the ear plates protrude from the ends of the fixed bridge (4).

7. The multifunctional beam seam cover plate suitable for a vertical lifting bascule bridge according to claim 1 is characterized in that: It also includes support columns (3), which are conventional structural columns. The support columns (3) are placed one on each of the left and right sides of the fixed bridge (4) and are used to support the L-shaped cover plate (1) when it is rotated to a maximum angle. When not in use, the support columns (3) are placed in a green belt or on the top surface of a crash barrier.

8. The multifunctional beam seam cover plate suitable for vertical lifting bascule bridge according to claim 7 is characterized in that: The top surface of the support column (3) is provided with a rubber pad or a flexible pad layer made of similar material.

9. The multifunctional beam seam cover plate suitable for vertical lifting bascule bridge according to claim 1 is characterized in that: A weight block (13) is arranged at the end of the long side (11) for rotating and resetting the L-shaped cover plate (1); a groove (7) matching the shape of the weight block (13) is arranged on the opening bridge (5); when the opening bridge (5) is in a closed state, the weight block (13) of the opening bridge is located in the groove (7).

10. The method for installing a multifunctional beam seam cover plate suitable for a vertical lifting bascule bridge according to claim 1, characterized in that: The following steps are involved: When the opening bridge (4) is in a closed state, the L-shaped cover plate (1) is installed between the beam gap (6) of the fixed bridge (4) and the opening bridge (5) through the pin shaft (2), and its long side (11) overlaps the bridge deck of the opening bridge (5). When the opening bridge (5) is in normal traffic, the L-shaped cover plate (1) plays a role of penetrating the bridge deck. As the opening bridge (5) is lifted and opened, the L-shaped cover plate (1) rotates counterclockwise around the pin shaft (2) until its long side (11) contacts the support column (3) and stops moving. , the L-shaped cover plate (1) reaches its limit opening and closing angle, and as the opening bridge (5) descends and closes, the short side (12) of the L-shaped cover plate (1) contacts the opening bridge (5), and then rotates clockwise until its long side (11) contacts the bridge surface of the opening bridge (5) and stops moving. Then, the L-shaped cover plate (1) returns to its initial state again, completing an action cycle. Thereafter, the opening bridge (5) continuously rises and falls during operation, and the L-shaped cover plate (1) also continuously repeats the above-mentioned action cycle accordingly.

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