A bridge mechanism of an amphibious bridge

Abstract

The application discloses a bridge mechanism of an amphibious bridge and belongs to the technical field of transportation. The bridge mechanism is suitable for the amphibious bridge and comprises a bridge span. The bridge mechanism comprises two middle bridge joints connected with each other, has a V-shaped bottom shape, and has a top plane structure used for passing of driving equipment; two end bridge joints connected to two ends of the two middle bridge joints through a bridge joint turnover mechanism, the turnover mechanism is used for lifting up the end bridge joints as the fulcrum relative to the connecting position with the middle bridge joints; and a plurality of air bag assemblies symmetrically connected to the side of the middle bridge joint. The amphibious bridge combines the land dry ditch bridge and the water ferry, can overcome the dry ditch obstacle on land and the river obstacle on water, and meets the double needs of smoothly passing the water and land obstacles.

Description

Technical Field

[0001] This application belongs to the field of transportation technology, specifically relating to a bridge structure for an amphibious bridge. Background Technology

[0002] Amphibious bridges must be able to be constructed on land and used for ferrying goods across water. When used as a ferry gate bridge, buoyancy is provided by airbags installed on both sides. However, existing amphibious bridges have insufficient buoyancy, poor stability, and inadequate load-bearing capacity and anti-capsulation capabilities.

[0003] Furthermore, existing amphibious bridges, after completion, have an inverted "V" or "W" shaped deck, whether in land or water transport mode. Especially during water transport, due to underwater alignment and power layout requirements, navigation necessitates raising two end sections of the bridge (resulting in a "W" shaped deck) to avoid nose-diving. However, this increases navigational resistance, leading to decreased vessel power, lower speeds when fully loaded, and limiting the effective cargo capacity during transport.

[0004] When the boat is being transported by ferry, after loading is completed on the shore, the water is shallow and the problem of "bridge sections getting stuck on the bottom" often occurs. This is because the friction between the bridge sections and the bottom of the water is high, and the self-powered vehicle is unable to overcome the resistance, making it very difficult to leave the shore.

[0005] Furthermore, the current amphibious bridges have too few airbags, resulting in insufficient effective drainage volume. At the same time, it is difficult to improve buoyancy and stability on existing amphibious bridges by increasing the number of airbags. Summary of the Invention

[0006] The example of this application provides an amphibious bridge structure that combines a land-based dry ditch bridge and a water ferry into one, which can overcome obstacles in dry ditches on land and river obstacles on water, meeting the dual needs of materials and equipment to smoothly pass through water and land obstacles, improving the mobile support transportation capability of a single piece of equipment with "one specialty and multiple functions", and expanding the scope of use.

[0007] The solution presented in this application is implemented through the following steps.

[0008] A bridge structure suitable for amphibious bridges, comprising a bridge span, the bridge span including:

[0009] The two interconnected middle bridge sections have a V-shaped bottom and a planar top, which is used to allow passage for traveling equipment;

[0010] Two end bridge sections are connected to the two ends of two middle bridge sections respectively through a bridge section flipping mechanism. The flipping mechanism is used to tilt the end bridge section relative to the connection position with the middle bridge section as a fulcrum.

[0011] In addition, multiple airbag assemblies are symmetrically connected to the side of the middle bridge section.

[0012] Optionally, the two middle bridge sections are hinged at the bottom and connected at the top by a middle bridge section connecting mechanism;

[0013] The middle bridge section connecting mechanism is telescopic, thereby allowing the bottom to switch between the V-shaped and planar structures, and simultaneously allowing the top to switch between the planar structure and the V-shaped structure accordingly.

[0014] Optionally, the top and bottom of the middle bridge section are not parallel.

[0015] Optionally, the middle bridge section connecting mechanism consists of a hydraulic cylinder and a lug plate, with the hydraulic cylinder connected to the middle bridge section via the lug plate.

[0016] Optionally, the middle bridge section can be a box-type structure.

[0017] Optionally, the end bridge section is a frame structure.

[0018] Optionally, the maximum tilt angle of the end bridge section is 180 degrees.

[0019] Optionally, the bridge section tilting mechanism includes a tilting cylinder, a tripod, and a connecting rod;

[0020] The lower part of the tripod is hinged to the middle bridge section and connected to the end bridge section via a connecting rod. The upper part of the tripod is connected to the middle bridge section via a tilting cylinder.

[0021] Optionally, the middle bridge section may be equipped with two airbag assemblies on each side.

[0022] Optionally, the top and bottom of the end bridge section are not parallel;

[0023] The top of the end bridge section mates with the top of the middle bridge section, thus making them coplanar in the unfolded state of the bridge structure;

[0024] The top of the end bridge section and the top of the middle bridge section are in contact with each other when the bridge structure is in its retracted state, and the bottom of the end bridge section is parallel to the bottom of the middle bridge section. Attached Figure Description

[0025] To illustrate this more clearly, the accompanying drawings used in the description will be briefly introduced below.

[0026] Figure 1 This is a top view of the bridge structure of an amphibious bridge in an embodiment of the present invention, showing its operation on water.

[0027] Figure 2 This is a front view of the bridge structure transportation status of an amphibious bridge according to an embodiment of the present invention.

[0028] Figure 3This is a front view of the bridge structure and bridge erection status of an amphibious bridge according to an embodiment of the present invention.

[0029] Figure 4 This is a front view of the land-based load-bearing state of the bridge structure of an amphibious bridge according to an embodiment of the present invention.

[0030] Figure 5 This is a front view of the bridge structure of an amphibious bridge in the water transport state according to an embodiment of the present invention.

[0031] Figure labeling: 101 - Component; Detailed Implementation

[0032] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 This application discloses a bridge structure for an amphibious bridge.

[0033] The main body of the amphibious bridge consists of two middle bridge sections 1, two end bridge sections 2, two bridge section overturning mechanisms 3, a middle bridge section connecting mechanism 4, and an airbag assembly 5.

[0034] Judging from the state after the bridge structure is assembled / installed, the two middle bridge sections 1 are arranged in the middle of the bridge structure.

[0035] To provide buoyancy, the middle bridge section can be a closed box structure.

[0036] When used for water transport, the middle bridge section 1 serves as the main load-bearing structure, providing buoyancy. When used for land transport, the middle bridge section 1 serves as the main load-bearing bridge deck.

[0037] The lower part of the two bridge sections is hinged by a pin, while the upper part is connected by the bridge section connecting mechanism 4. In addition, in order to avoid high friction between the bridge sections and the seabed, the deck surface is inclined, and when the bridge section rotates around the pin, the bottom surface forms a V-shaped structure.

[0038] The connecting mechanism 4 of the middle bridge section 1 consists of a hydraulic cylinder 9 and a middle bridge connecting lug plate. When the hydraulic cylinder extends, the middle bridge section 1 is in the erected state and the bridge surface of the middle bridge section 1 is in an inclined state. When the hydraulic cylinder retracts, the bridge surface of the middle bridge section 1 is in a horizontal state, at which time vehicles can pass or cross.

[0039] The middle bridge section 1 is connected to the end bridge section 2 via a flipping mechanism 3. The end bridge section 2 is a frame structure and serves as the main load-bearing bridge deck when under load. During water transport, the end bridge section 2 is lifted upwards via the bridge section flipping mechanism 3 to reduce navigation resistance.

[0040] End bridge section 2 is a frame structure and serves as the main load-bearing bridge deck when under load. During water transport, end bridge section 2 is lifted upwards by bridge section tilting mechanism 3 to reduce navigation resistance.

[0041] The bridge section tilting mechanism 3 consists of a tilting cylinder 6, a tripod 7, a connecting rod 8, etc.

[0042] The lower part of the tripod 7 is hinged to the middle bridge section 1, and is also connected to the end bridge section 2 via a connecting rod 8.

[0043] The upper part of the tripod 7 is connected to the middle bridge section 1 via the tilting cylinder 6. The extension and retraction of the tilting cylinder 6 can realize the 180° rotation of the end bridge section 2 (rotation at any angle between 0 and 180 degrees).

[0044] The airbag assembly 5 is located on the side of the central bridge 1, with 2 units on each side, which improves buoyancy and stability.

[0045] To facilitate the implementation of the present invention by those skilled in the art, the use of the bridge mechanism will be described below in conjunction with the accompanying drawings and the above structure.

[0046] The storage status of the bridge structure is as follows Figure 2 As shown.

[0047] At this time, the bridge section flipping mechanism 3 causes the end bridge section to flip and be in the storage state by retracting the hydraulic cylinder 6. At this time, the top of the end bridge section is in contact with the top of the middle bridge section, and the bottom of the end bridge section is parallel to the bottom of the middle bridge section.

[0048] At the same time, the cylinder 9 of the middle bridge section connecting mechanism 4 extends, making the bottoms of the two middle bridge sections coplanar, while the tops form an inverted V shape.

[0049] The deployed state of the bridge structure is as follows Figure 3 and Figure 4 As shown, or as Figure 3 and Figure 5 As shown. Among them. Figure 3 and Figure 4 The image shows the bridge under load. Figure 3 and Figure 5 The image shows the bridge in its current state as a water ferry crossing.

[0050] Land-based haulage operations:

[0051] Once the amphibious bridge is in place, the control box is used to unload the bridge spans from the specialized transport vehicle and place them on the dry ditch. Figure 3 As shown, by manipulating the hydraulic cylinder 9 connected to the middle bridge section 1, the hydraulic cylinder 9 retracts, causing the middle bridge section 1 to flip, making the bridge surface level. At this point, the conditions for land-based traffic are met, as shown. Figure 4 and Figure 1 As shown.

[0052] During water ferry operations:

[0053] After the amphibious bridge is in place, the control box is used to unload the bridge spans from the special transport vehicle and place them on the water. At this time, the airbags 5 on both sides are inflated using the inflation system. Figure 1 As shown. With one end of the bridge section 2 attached to the bank, vehicles drive onto the bridge span. The tilting mechanism 3 is then operated to lift both ends of the bridge section 2 upwards, thus enabling ferry crossing. Figure 5 As shown.

[0054] The above solution offers the following key advantages:

[0055] 1. By using telescopic rods and a tilting plate mechanism, the buoyancy and stability of the amphibious bridge are effectively improved, ensuring the load-bearing capacity and navigation safety of the ferry bridge.

[0056] 2. The underwater profile has been improved (in the unfolded, through-flow state, it is V-shaped), avoiding the problem of "head-down" shoveling water, reducing the draft and reducing navigation resistance, increasing the effective cargo area, and a swingable mechanism has been designed to comprehensively consider the needs of land-based erection and through-flow.

[0057] Furthermore, this design effectively solves the problem of difficulty in leaving the shore caused by the "middle bridge section running aground" after the ferry is loaded.

[0058] The embodiments described above with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0059] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, one or more embodiments have been described above with reference to the accompanying drawings. Throughout the description, similar reference numerals are used to denote similar components. In the foregoing description, numerous specific details have been set forth for illustrative purposes in order to provide a more thorough understanding of one or more embodiments. However, it will be apparent that one or more embodiments may be practiced in various circumstances without these specific details, and the embodiments may be combined with and referenced to each other without contradiction.

[0060] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0061] The above description of the structure, features and effects of this application is based on the embodiments shown in the drawings. The above are only preferred embodiments of this application. However, this application does not limit the scope of implementation to what is shown in the drawings. Any changes made in accordance with the concept of this application, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, should be within the protection scope of this application.

Claims

1. A bridge structure for an amphibious bridge, characterized in that, Includes a bridge span, the bridge span comprising: Two interconnected middle bridge sections have a V-shaped bottom and a planar top, wherein the planar structure is for passage of traveling equipment; Two end bridge sections are connected to the two ends of the two middle bridge sections respectively through a bridge section flipping mechanism. The flipping mechanism is used to make the end bridge section tilt up relative to the connection position with the middle bridge section as a fulcrum. In addition, multiple airbag assemblies are symmetrically connected to the sides of the middle bridge section; The two middle bridge sections are hinged at the bottom and connected at the top by a middle bridge section connecting mechanism; The middle bridge section connecting mechanism is telescopic, thereby allowing the bottom to switch between a V-shaped and a planar structure, and simultaneously allowing the top to switch between a planar structure and a V-shaped structure accordingly.

2. The bridge mechanism according to claim 1, characterized in that, The top and bottom of the middle bridge section are not parallel.

3. The bridge mechanism according to claim 1 or 2, characterized in that, The middle bridge section connecting mechanism consists of a hydraulic cylinder and a lug plate, with the hydraulic cylinder connected to the middle bridge section via the lug plate.

4. The bridge mechanism according to claim 1, characterized in that, The middle bridge section is a box-type structure.

5. The bridge mechanism according to claim 1 or 4, characterized in that, The end bridge section is a frame structure.

6. The bridge mechanism according to claim 1, characterized in that, The maximum tilt angle of the end bridge section is 180 degrees.

7. The bridge mechanism according to claim 1, characterized in that, The bridge section tilting mechanism includes a tilting cylinder, a tripod, and a connecting rod; The lower part of the tripod is hinged to the middle bridge section and connected to the end bridge section via a connecting rod. The upper part of the tripod is connected to the middle bridge section via a tilting cylinder.

8. The bridge mechanism according to claim 1, characterized in that, The middle bridge section has two airbag assemblies on each side.

9. The bridge mechanism according to claim 1, characterized in that, The top and bottom of the end bridge section are not parallel; The top of the end bridge section mates with the top of the middle bridge section, thus making them coplanar in the unfolded state of the bridge structure; The top of the end bridge section and the top of the middle bridge section are in contact with each other when the bridge structure is in its retracted state, and the bottom of the end bridge section is parallel to the bottom of the middle bridge section.

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