Bridge pushing mechanism of mechanical bridge

Abstract

The utility model discloses a bridge pushing mechanism of a mechanized bridge, which relates to the technical field of mechanized bridges and comprises a bottom plate, and a temporary supporting mechanism is fixedly mounted at the side end of the top of the bottom plate. The temporary supporting mechanism comprises a fixing plate fixedly installed at the side end of the top of the bottom plate, a motor is fixedly installed on the inner wall of the fixing plate, a swing plate is fixedly installed at the driving end of the motor, a rotating shaft is fixedly installed at the top of the swing plate, a first supporting rod is rotatably installed on the inner wall of the rotating shaft, and a plurality of first pawls are rotatably installed on one side wall of the supporting rod. One end of the pawl is connected with a tooth column in a meshed mode, and a supporting plate is fixedly installed at the top of the tooth column. According to the temporary supporting column, the swing plate is driven by the motor to swing in a reciprocating mode, then the first supporting rod and the second supporting rod are driven to move up and down, lifting of the tooth column is achieved, the height of the temporary supporting column can be adjusted according to actual requirements, the height does not need to be customized according to field data, customization requirements are reduced, and production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mechanized bridge technology, specifically a mechanized bridge pushing mechanism. Background Technology

[0002] Mechanized bridges are bridge equipment that can be quickly erected and dismantled, and are widely used in military, rescue, and engineering fields.

[0003] During the erection process, the bridge pushing mechanism is one of the key components, responsible for pushing out and retracting the bridge span. Currently, the main methods of erecting mechanized bridges are the flipping type and the flat pushing type. When using the flat pushing type, the erection frame is the main component of the bridge erection. The bridge pushing mechanism is set on the erection frame, and the pin gear on the bridge pushing mechanism meshes with the pin teeth on the bridge span to push out and retract the bridge span.

[0004] During the erection process, temporary support columns play a role in providing temporary support and stabilizing the bridge, ensuring its safety and stability. Due to varying height conditions at the bridge erection site, the temporary support columns need to be customized in height based on specific site data. After each installation, the customized support columns cannot be reused and need to be recycled and remanufactured to meet new height requirements. If there are errors or changes in the site data, the customized support columns will not meet the actual needs, leading to the need for re-customization, which extends the construction period and reduces construction efficiency.

[0005] In view of the above, this application is hereby submitted. Utility Model Content

[0006] The purpose of this invention is to provide a mechanized bridge pushing mechanism to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model provides a mechanized bridge pushing mechanism, including a base plate, wherein a temporary support mechanism is fixedly installed on the top side of the base plate;

[0008] The temporary support mechanism includes a fixed plate fixedly installed on the top side of the base plate. A motor is fixedly installed on the inner wall of the fixed plate. A swing plate is fixedly installed on the drive end of the motor. A rotating shaft is fixedly installed on the top of the swing plate. A support rod is rotatably installed on the inner wall of the rotating shaft. Multiple pawls are rotatably installed on one side wall of the support rod. A toothed column is engaged at the end of each pawl. A support plate is fixedly installed on the top of the toothed column.

[0009] Furthermore, a limiting plate is slidably installed on the inner wall of the toothed column, a fixing mechanism is fixedly installed on the side wall of the limiting plate, and sliding columns are fixedly installed on both side walls of the swing plate, with the outer wall of the sliding column slidably connected to the inner wall of the fixing plate.

[0010] Furthermore, a connecting plate 2 is fixedly installed at the top of the support rod 1, and a threaded hole 2 is opened on the surface of the connecting plate 2. A connecting plate 1 is fixedly installed at the top of the support rod 2, and a threaded hole 1 is opened on the surface of the connecting plate 1. When the connecting plate 2 overlaps with the connecting plate 1, bolts can be threadedly installed in the threaded hole 1 and the threaded hole 2 for fixation.

[0011] Furthermore, a lifting mechanism is fixedly installed on the top of the base plate, and the top of the lifting mechanism is fixedly connected to the bottom of the fixed mechanism. There are two temporary support mechanisms, which are respectively installed on the opposite side walls of the fixed mechanism.

[0012] Furthermore, a pushing mechanism is fixedly installed on the top of the fixing mechanism, a screw is fixedly installed on the driving end of the pushing mechanism, a pushing plate is engaged with the outer wall of the screw, a second pawl is engaged with the side of the tooth column away from the first pawl, a second support rod is rotatably installed on the side end of the second pawl, and another rotating shaft is rotatably installed at the bottom of the second support rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are: by driving the swing plate to swing back and forth by the motor, the support rod one and support rod two move up and down, thereby raising the toothed column. This allows the height of the temporary support column to be adjusted according to actual needs, eliminating the need to customize the height based on on-site data, reducing customization requirements and lowering production costs. Attached Figure Description

[0014] Figure 1 A schematic diagram of the front structure of a mechanized bridge pushing mechanism;

[0015] Figure 2 This is an enlarged schematic diagram of a temporary support mechanism for a mechanized bridge pushing mechanism;

[0016] Figure 3 This is an enlarged schematic diagram of the fixed end of a temporary support mechanism for a mechanized bridge pushing mechanism.

[0017] Figure 4 This is a schematic diagram of the front structure of a mechanized bridge pushing mechanism after it has been raised.

[0018] In the diagram: 1. Base plate; 2. Fixed plate; 3. Lifting mechanism; 4. Fixed mechanism; 5. Pushing mechanism; 6. Pushing plate; 7. Limiting plate; 8. Support plate; 9. Swinging plate; 10. Motor; 11. Sliding column; 12. Rotating shaft; 13. Support rod one; 14. Pawl one; 15. Tooth column; 16. Support rod two; 17. Pawl two; 18. Screw; 19. Connecting plate one; 20. Threaded hole one; 21. Connecting plate two; 22. Threaded hole two. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a mechanized bridge pushing mechanism, including a base plate 1, a temporary support mechanism fixedly installed on the top side of the base plate 1, the temporary support mechanism including a fixed plate 2 fixedly installed on the top side of the base plate 1, a motor 10 fixedly installed on the inner wall of the fixed plate 2, a swing plate 9 fixedly installed on the drive end of the motor 10, a rotating shaft 12 fixedly installed on the top of the swing plate 9, a support rod 13 rotatably installed on the inner wall of the rotating shaft 12, and multiple pawls 14 rotatably installed on the side wall of the support rod 13. The motor 10 drives the swing plate 9 to swing back and forth, thereby driving the support rod 13 and the pawls 14 to move up and down, realizing the lifting of the toothed column 15. The end of the pawl 14 is engaged with the toothed column 15 to ensure that the toothed column 15 can remain stable after rising to the required position and will not fall down on its own, thereby improving construction efficiency and reducing the need for manual intervention.

[0021] Furthermore, since the engagement between the pawl and the toothed column 15 is performed in stages, the toothed column 15 can be raised to different heights to adapt to different construction needs. A support plate 8 is fixedly installed on the top of the toothed column 15 to support the bridge structure.

[0022] Please see Figure 2 This utility model provides a technical solution: a mechanized bridge pushing mechanism, including a swing plate 9 with sliding columns 11 fixedly installed on both sides of the swing plate 9. The outer wall of the sliding column 11 is slidably connected to the inner wall of the fixed plate 2, providing stable support and guidance for the swing plate 9. During the reciprocating swing of the swing plate 9, the sliding column 11 can move smoothly within the limited range of the inner wall of the fixed plate 2, effectively preventing the swing plate 9 from shaking or deviating, thereby enhancing the stability of the entire temporary support mechanism.

[0023] Please see Figure 2 This utility model provides a technical solution: a mechanized bridge pushing mechanism, including a limiting plate 7 slidably installed on the inner wall of the tooth column 15. The sliding installation of the limiting plate 7 on the inner wall of the tooth column 15 provides additional support and limitation for the lifting and lowering movement of the tooth column 15. A fixing mechanism 4 is fixedly installed on the side wall of the limiting plate 7, which can effectively prevent the tooth column 15 from shaking or deviating during the lifting and lowering process, and ensure the stability and reliability of the lifting and lowering of the tooth column 15.

[0024] Please see Figure 2This utility model provides a technical solution: a mechanized bridge pushing mechanism, including a second pawl 17 meshing with the side of the toothed column 15 away from the first pawl 14, a second support rod 16 rotatably mounted on the side end of the second pawl 17, and another rotating shaft 12 rotatably mounted on the bottom of the second support rod 16. The first pawl 14 and the second pawl 17 are located on both sides of the toothed column 15. When the toothed column 15 rises to its position, the first pawl 14 and the second pawl 17 are respectively engaged at different positions on the toothed column 15. The two work together to effectively prevent the toothed column 15 from descending or swaying, and enhance the stability of the temporary support mechanism.

[0025] Please see Figure 3 This utility model provides a technical solution: a mechanized bridge pushing mechanism, including a connecting plate 21 fixedly installed at the top of a support rod 13, with a threaded hole 22 on the surface of the connecting plate 21; and a connecting plate 19 fixedly installed at the top of a support rod 16, with a threaded hole 20 on the surface of the connecting plate 19. When it is necessary to raise the toothed column 15, simply overlap the connecting plate 19 and the connecting plate 21, align the threaded hole 20 with the threaded hole 22, and then fix them with bolts. Pads 14 and 27 can then be locked onto the toothed column 15, ensuring the stable rise of the toothed column 15. When it is necessary to release the toothed column 15, simply loosen the bolts, separate the connecting plate 19 and the connecting plate 21, and the pads 14 and 27 will leave the toothed column 15, allowing the toothed column 15 to descend and the device to be retrieved.

[0026] Please see Figure 1 , Figure 4 This utility model provides a technical solution: a mechanized bridge pushing mechanism, including two temporary support mechanisms, which are respectively installed on the opposite side walls of the fixed mechanism 4 to form a more stable support structure, evenly distribute the force, effectively reduce the pressure of a single support point, and thus enhance the stability and reliability of the entire support system.

[0027] Please see Figure 1 , Figure 4 This utility model provides a technical solution: a mechanized bridge pushing mechanism, including a lifting mechanism 3 fixedly installed on the top of a base plate 1, the top of the lifting mechanism 3 being fixedly connected to the bottom of a fixed mechanism 4, a pushing mechanism 5 fixedly installed on the top of the fixed mechanism 4, a screw 18 fixedly installed on the driving end of the pushing mechanism 5, and a pushing plate 6 meshing with the outer wall of the screw 18.

[0028] Working principle: The device is set on top of the bridge pier to ensure stability. The motor 10 is started, and the drive end of the motor 10 drives the swing plate 9 to swing back and forth. The back and forth swing of the swing plate 9 is transmitted to the support rod 13 and support rod 2 16 through the rotating shaft 12, causing them to move up and down. When support rod 13 rises, pawl 14 engages the tooth peak of the tooth column 15 to prevent the tooth column 15 from falling. When support rod 2 16 rises, pawl 2 17 also engages the tooth peak on the other side of the tooth column 15 to ensure that the tooth column 15 is always held stable by the pawl on one side. The up and down movement of support rod 13 and support rod 2 16 drives the tooth column 15 to rise. When the tooth column 15 rises to the required position, the motor 10 stops working, and pawl 14 and pawl 2 17 both engage the tooth column 15 to fix the tooth column 15 and ensure that it will not fall.

[0029] At this point, place the bridge on top of the support plate 8, activate the lifting mechanism 3. The top of the lifting mechanism 3 is fixedly connected to the bottom of the fixing mechanism 4, raising the fixing mechanism 4 and the bridge on it. During the lifting, the push plate 6 is higher than the support plate 8. Activate the push mechanism 5 to drive the screw 18 to rotate. The rotation of the screw 18 causes the push plate 6 to move horizontally, pushing the bridge forward. After pushing to the limit position of the push plate 6, the lifting mechanism 3 falls, placing the bottom of the bridge on the surface of the support plate 8. After the lifting mechanism 3 leaves the bottom of the bridge, the screw 18 reverses, retracting the push plate 6 to the initial position. Repeat the above actions to perform continuous bridge pushing.

Claims

1. A mechanized bridge pushing mechanism, comprising a base plate (1), characterized in that: A temporary support mechanism is fixedly installed on the top side of the base plate (1); The temporary support mechanism includes a fixed plate (2) fixedly installed on the top side of the base plate (1). A motor (10) is fixedly installed on the inner wall of the fixed plate (2). A swing plate (9) is fixedly installed on the drive end of the motor (10). A rotating shaft (12) is fixedly installed on the top of the swing plate (9). A support rod (13) is rotatably installed on the inner wall of the rotating shaft (12). Multiple pawls (14) are rotatably installed on the side wall of the support rod (13). A toothed column (15) is meshed at the end of the pawl (14). A support plate (8) is fixedly installed on the top of the toothed column (15).

2. The mechanized bridge pushing mechanism as described in claim 1, characterized in that: The swing plate (9) has sliding columns (11) fixedly installed on both sides of the swing plate (9), and the outer wall of the sliding column (11) is slidably connected to the inner wall of the fixed plate (2).

3. The mechanized bridge pushing mechanism as described in claim 2, characterized in that: A limiting plate (7) is slidably installed on the inner wall of the tooth column (15), and a fixing mechanism (4) is fixedly installed on the side wall of the limiting plate (7).

4. The mechanized bridge pushing mechanism as described in claim 3, characterized in that: The toothed column (15) is engaged with a second pawl (17) on the side away from the first pawl (14). A second support rod (16) is rotatably mounted on the side end of the second pawl (17), and another rotating shaft (12) is rotatably mounted on the bottom of the second support rod (16).

5. The mechanized bridge pushing mechanism as described in claim 4, characterized in that: A connecting plate 2 (21) is fixedly installed at the top of the first support rod (13). A threaded hole 2 (22) is opened on the surface of the connecting plate 2 (21). A connecting plate 1 (19) is fixedly installed at the top of the second support rod (16). A threaded hole 1 (20) is opened on the surface of the connecting plate 1 (19). When the connecting plate 2 (21) and the connecting plate 1 (19) overlap, bolts can be threadedly installed in the threaded hole 1 (20) and the threaded hole 2 (22) for fixation.

6. The mechanized bridge pushing mechanism as described in claim 5, characterized in that: There are two temporary support mechanisms, which are installed on the opposite side walls of the fixed mechanism (4).

7. A mechanized bridge pushing mechanism as described in claim 6, characterized in that: A lifting mechanism (3) is fixedly installed on the top of the base plate (1), and the top of the lifting mechanism (3) is fixedly connected to the bottom of the fixing mechanism (4).

8. A mechanized bridge pushing mechanism as described in claim 7, characterized in that: The top of the fixing mechanism (4) is fixedly installed with a pushing mechanism (5), and the driving end of the pushing mechanism (5) is fixedly installed with a screw (18), and the outer wall of the screw (18) is engaged with a pushing plate (6).

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