Bridge mechanism of amphibious bridge

Abstract

The invention discloses a bridge mechanism of an amphibious bridge, and belongs to the transportation technology. The bridge mechanism is suitable for an amphibious bridge and comprises a bridge span. The bridge comprises two middle bridge sections which are connected with each other, the bridge is provided with a V-shaped bottom shape and a top shape of a plane structure, and the plane structure is used for running equipment to pass through. The two end bridge sections are connected to the two ends of the two middle bridge sections through bridge section turnover mechanisms respectively, and the turnover mechanisms are used for enabling the end bridge sections to tilt relative to the connecting positions of the end bridge sections and the middle bridge sections as fulcrums; and the air bag assemblies are symmetrically connected to the side parts of the middle bridge section. According to the amphibious bridge, a land dry ditch bridge and a water ferryboat are combined into a whole, dry ditch obstacles can be overcome on the land, river obstacles can be overcome on the water surface, and the dual requirement that materials and equipment smoothly pass through the land and water obstacles is met.

Description

Technical Field

[0001] The present application belongs to the field of transportation technology, and specifically relates to a bridge structure of an amphibious bridge. Background Art

[0002] An amphibious bridge can be built on land and used for water ferrying. When used as a ferry gate bridge, air bags installed on the left and right sides provide buoyancy. However, existing amphibious bridges have insufficient buoyancy, poor stability, and insufficient load-bearing capacity and anti-tilting capabilities.

[0003] In addition, after the existing amphibious bridge is erected, the bridge deck is in an inverted "V" or "W" shape, whether it is on land or in water ferrying. Especially in water ferrying, due to the underwater line shape and power layout requirements, the two end bridge sections must be lifted for water navigation (the bridge deck is in a "W" shape) to avoid the problem of "head-stuck" shoveling water. However, it increases the navigation resistance, resulting in poor power performance of the sailing ship, low speed in the fully loaded state, and limiting the effective cargo area in the ferrying state.

[0004] During canal ferrying, after loading is completed on the shore, the water depth is shallow and the problem of "bridge sections running aground" often occurs. Because the friction between the bridge sections and the bottom of the water is large, the self-generated power cannot overcome the resistance, so it is very difficult to leave the shore.

[0005] Furthermore, the current amphibious bridges are equipped with a small number of airbags, resulting in insufficient effective drainage volume. At the same time, it is also difficult to increase the buoyancy and stability of the existing amphibious bridges by increasing the number of airbags installed. Summary of the invention

[0006] The example of the present application provides an amphibious bridge mechanism, which combines a land dry ditch bridge and a water ferry into one, which can overcome dry ditch obstacles on land and river obstacles on water, meet the dual needs of materials and equipment passing through water and land obstacles smoothly, enhance the "one specialty and multiple functions" mobile guarantee transportation capability of a single equipment, and expand the scope of use.

[0007] The solution of this application example is implemented through the following contents.

[0008] A bridge structure, applicable to an amphibious bridge, comprises a bridge span, wherein the bridge span comprises:

[0009] Two middle bridge sections connected to each other have a V-shaped bottom shape and a flat structure top shape, wherein the flat structure is used for the passage of traveling equipment;

[0010] The two end bridge sections are connected to the two ends of the two middle bridge sections through a bridge section flipping mechanism, respectively. 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] And, a plurality of air bag assemblies are symmetrically connected to the side portions 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 connection mechanism;

[0013] The middle bridge section connection mechanism can be extended and retracted, so that the bottom is switched between the V-shaped structure and the plane structure, and the top is synchronously switched between the plane structure and the V-shaped structure accordingly.

[0014] Optionally, the mid-bridge segment has a top portion and a bottom portion that are not parallel.

[0015] Optionally, the middle bridge section connection mechanism consists of an oil cylinder and a lug plate, and the oil cylinder is connected to the middle bridge section via the lug plate.

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

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

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

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

[0020] The lower part of the tripod is hinged with the middle bridge joint and connected with the end bridge sections through a connecting rod. The upper part of the tripod is connected with the middle bridge joint through a tilting cylinder.

[0021] Optionally, the middle bridge section is provided with two air bag 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 cooperates with the top of the middle bridge section so as to be coplanar in the deployed state of the bridge mechanism;

[0024] The top of the end bridge section and the top of the middle bridge section are in contact with each other in the storage state of the bridge mechanism, and the bottom of the end bridge section is parallel to the bottom of the middle bridge section. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] For a clearer explanation, the following briefly introduces the drawings required for the description.

[0026] Figure 1 It is a top view of a water ferry operation of a bridge mechanism of an amphibious bridge in an embodiment of the present invention.

[0027] Figure 2 It is a front view of the transport state of the bridge mechanism of an amphibious bridge in an embodiment of the present invention.

[0028] Figure 3It is a front view of the bridge erection state of a bridge mechanism of an amphibious bridge in an embodiment of the present invention.

[0029] Figure 4 It is a front view of a bridge mechanism of an amphibious bridge in a land-passing state in an embodiment of the present invention.

[0030] Figure 5 It is a front view of the water ferry state of the bridge mechanism of an amphibious bridge in an embodiment of the present invention.

[0031] Description of reference numerals: 101 - element;. DETAILED DESCRIPTION

[0032] Please also read Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 , the present application discloses a bridge mechanism of an amphibious bridge.

[0033] Main body, the span of the amphibious bridge is composed of two middle bridge sections 1, two end bridge sections 2, two bridge section turning mechanisms 3, a middle bridge section connecting mechanism 4 and an airbag assembly 5.

[0034] From the perspective of the assembled / installed state of the bridge structure, the two middle bridge sections 1 are arranged in the middle position of the bridge structure.

[0035] In order to provide buoyancy, the mid-bridge section may be a closed box structure.

[0036] When the bridge is used for water ferrying, the middle bridge section 1 is the main load-bearing structure, providing buoyancy on water. When the bridge is used for land transportation, the middle bridge section 1 is the main bridge deck.

[0037] The lower part between the two middle bridge sections is hinged by a pin, and the upper part is connected by a middle bridge section connection mechanism 4. In addition, in order to avoid large friction between the bridge section and the bottom ground, the deck surface is an inclined surface, and when the middle bridge section rotates with the pin as the fulcrum, the bottom surface forms a V-shaped structure.

[0038] The connecting mechanism 4 of the middle bridge section 1 is composed of a cylinder 9 and a middle bridge upper lug plate. When the cylinder is extended, the middle bridge section 1 is in an erected state, and the bridge deck of the middle bridge section 1 is in an inclined state. When the cylinder is retracted, the bridge deck of the middle bridge section 1 is in a horizontal state, and vehicles can be carried or transported.

[0039] The end of the middle bridge section 1 is connected to the end bridge section 2 through a turning mechanism 3. The end bridge section 2 is a frame structure and is the main load-bearing bridge deck when passing load. When crossing water, the end bridge section 2 is lifted up by the bridge section turning mechanism 3 to reduce navigation resistance.

[0040] The end bridge section 2 is a frame structure and is the main load-bearing bridge deck when loaded. When crossing the water, the end bridge section 2 is lifted upward by the bridge section flipping mechanism 3 to reduce navigation resistance.

[0041] The bridge section turning mechanism 3 is composed of a turning cylinder 6, a tripod 7, a connecting rod 8 and the like.

[0042] The lower part of the tripod 7 is hinged to the middle bridge 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 1 through the turning cylinder 6. The 180° turning (rotation at any angle between 0 and 180 degrees) of the end bridge section 2 can be achieved by the extension and contraction of the turning cylinder 6.

[0044] The airbag assembly 5 is arranged on the side of the middle bridge 1, with two airbags arranged on each side, which improves buoyancy and stability.

[0045] In order to enable technicians in the relevant field to conveniently implement the solutions in the present invention, the use of the bridge mechanism will be explained below in conjunction with the accompanying drawings and the above structure.

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

[0047] At this time, the bridge section turning mechanism 3 turns the end bridge section and is in the storage state by contracting the oil cylinder 6. At this time, the top of the end bridge section contacts 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 oil cylinder 9 of the middle bridge section connecting mechanism 4 is extended, so that the bottoms of the two middle bridge sections are coplanar and the tops are in an inverted V shape.

[0049] The deployment state of the bridge mechanism is as follows Figure 3 and Figure 4 As shown, or as Figure 3 and Figure 5 As shown. Figure 3 and Figure 4 The figure shows the bridge loading state. Figure 3 and Figure 5 Shown is the bridge's water ferry status.

[0050] Land transport operations:

[0051] After the amphibious bridge is in place, operate the control box to unload the bridge span from the special carrier and place it on the dry ditch. Figure 3 As shown, the middle bridge section 1 is operated to connect the oil cylinder 9 to retract the oil cylinder 9, and then the middle bridge section 1 is turned over to make the bridge deck horizontal. At this time, the conditions for land loading are met, such as Figure 4 and Figure 1 shown.

[0052] During water ferry operation:

[0053] After the amphibious bridge is in place, the control box is operated to unload the bridge span from the special carrier and place it on the water surface. At this time, the air bags 5 on both sides are inflated by the inflation system. Figure 1 Put the end bridge section 2 on the bank at one end, drive the vehicles onto the bridge span, operate the flip mechanism 3, and lift the end bridge sections 2 at both ends upwards. At this time, the conditions for water transport are met, as shown in FIG. Figure 5 shown.

[0054] The above scheme can achieve the following outstanding advantages:

[0055] 1. Through the telescopic rod and flip plate mechanism, the buoyancy and navigation stability of the amphibious bridge are effectively improved, ensuring the load and navigation safety of the Caodumen Bridge.

[0056] 2. The underwater line shape has been improved (V-shaped when in the unfolded state), the problem of "head-stuck" shoveling water has been avoided, the draft depth and navigation resistance have been reduced, the effective cargo area has been increased, and a swingable mechanism has been designed in comprehensive consideration of the needs of onshore installation and loading.

[0057] This design also 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 the present application, but should not be construed as limiting the present application.

[0059] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the foregoing describes one or more embodiments with reference to the accompanying drawings. Wherein, similar reference numerals throughout the text are used to refer to similar components. In the above description, for the purpose of explanation, many specific details are set forth in order to provide a more thorough understanding of one or more embodiments. However, it is obvious that in various cases, one or more embodiments can be practiced without these specific details, and each embodiment can be combined with each other and referenced to each other without contradiction.

[0060] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or apparatus.

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

Claims

1. A bridge structure of an amphibious bridge, characterized in that: Comprising a bridge span, the bridge span comprising: Two middle bridge sections connected to each other have a V-shaped bottom shape and a top shape of a planar structure, wherein the planar structure is used for the passage of traveling equipment; Two end bridge sections are connected to the two ends of the two middle bridge sections through a bridge section flipping mechanism, respectively, and the flipping mechanism is used to tilt the end bridge section relative to the connection position with the middle bridge section as a fulcrum; And, a plurality of air bag assemblies are symmetrically connected to the side portions of the middle bridge section.

2. The bridge structure according to claim 1, characterized in that: The two middle bridge sections are hinged at the bottom and connected at the top by a middle bridge section connection mechanism; The middle bridge section connection mechanism can be extended and retracted, so that the bottom is switched between the V-shaped structure and the plane structure, and the top is synchronously switched between the plane structure and the V-shaped structure accordingly.

3. The bridge structure according to claim 2, characterized in that: The middle bridge section has a top portion and a bottom portion that are not parallel.

4. The bridge structure according to claim 2 or 3, characterized in that: The middle bridge section connection mechanism consists of a cylinder and a lug plate, and the cylinder is connected to the middle bridge section through the lug plate.

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

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

7. The bridge structure according to claim 1, characterized in that: The maximum flip angle of the end bridge section is 180 degrees.

8. The bridge structure according to claim 1, characterized in that: The bridge section turning mechanism comprises a turning cylinder, a tripod and a connecting rod; The lower part of the tripod is hinged with the middle bridge joint and connected with the end bridge sections through a connecting rod. The upper part of the tripod is connected with the middle bridge joint through a tilting cylinder.

9. The bridge structure according to claim 1, characterized in that: The middle bridge section is provided with two air bag assemblies on each side.

10. The bridge structure 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 cooperates with the top of the middle bridge section so as to be coplanar in the deployed state of the bridge mechanism; The top of the end bridge section and the top of the middle bridge section are in contact with each other in the storage state of the bridge mechanism, and the bottom of the end bridge section is parallel to the bottom of the middle bridge section.

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