A large LNG ship boarding pontoon resistant to tidal action

Abstract

The present invention discloses a large LNG ship boarding floating bridge that can withstand tidal effects, which includes a ground base, a base connection module, a flexible platform, a compression spring and a pressure sensor. The ground base is in a convex shape, the base connection module is in a concave shape that matches the ground base. The compression springs are arranged on the corresponding surfaces of the ground base and the base connection module, and the compression springs are perpendicular to the surface of the base connection module. The pressure sensors are arranged on the compression springs, and the compression springs are in contact with the base connection module. One end of the flexible platform is hinged to one end of a steel plate through a hinge, and the other end of the steel plate is hinged to the base connection module. By setting the compression springs to be as short as possible under the condition of being able to bear the load, the present invention reduces the shaking of the boarding floating bridge and enhances the comfort during passage.

Description

Technical Field

[0001] The invention belongs to the technical field of shipbuilding, and in particular relates to a large LNG ship boarding pontoon capable of resisting tidal effects. Background Art

[0002] In the development of docks, for modern large-scale docks, especially pier-type docks in an unprotected state, the dock surface is not completely continuous and has a high elevation. Ships are frequently bumped and moved during operation with a large amplitude. Due to the large dock fenders, the distance from the side of the ship docked at the dock to the dock shoreline is large. The ship-shore relationship under such conditions is difficult to solve with ordinary ship ladders carried by ships. Therefore, in order to speed up ship loading and unloading operations and ensure the safety of personnel boarding and disembarking, large-scale docks now have to replace ship gangways with boarding pontoons. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides a large LNG ship boarding pontoon that can resist the effect of tides. The present invention can greatly improve the operability of the boarding pontoon while taking into account its safety performance, reducing the shaking of the boarding pontoon and enhancing the comfort during passing.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] The present invention provides a large LNG ship boarding pontoon that can resist the effect of tides, comprising a ground base, a base connection module, an active platform, a compression spring and a pressure sensor, wherein the ground base is in a convex shape, the base connection module is in a concave shape that matches the ground base, the compression spring is arranged on each surface of the ground base and the base connection module that are installed correspondingly, the compression spring is perpendicular to the surface of the base connection module, the pressure sensor is arranged on the compression spring, the compression spring is in contact with the base connection module, one end of the active platform is hinged to one end of a steel plate by a hinge, and the other end of the steel plate is hinged to the base connection module.

[0006] As a preferred technical solution, the compression springs are arranged on the upper surface and four side surfaces of the protruding structure of the ground base, and the compression springs are evenly distributed along the circumference of each surface.

[0007] As a preferred technical solution, three compression springs are evenly arranged along each edge of each surface.

[0008] As a preferred technical solution, the pressure sensor is used to transmit the force direction and force magnitude to the operator, and the operator can make adjustments according to the real-time feedback of the force during the operation. The presence of the compression spring greatly increases the fault tolerance during the operation.

[0009] As a preferred technical solution, when the boarding pontoon is not in use, a gasket is inserted between the base connection module and the ground base.

[0010] As a preferred technical solution, the cross-sections of the ground base and the base connection module are both rectangular.

[0011] Compared with the prior art, the present invention has the following technical effects: the present invention can offset part of the slight deviation caused by tides or other reasons through compression springs, which is not easy to be observed. The steel of the traditional boarding pontoon will be subjected to continuous extrusion or stretching in this process. The present invention can offset a certain amount of extrusion or stretching through the elastic deformation of the compression spring, thereby reducing the fatigue of the steel; since the compression spring is equipped with a force sensor, the force condition of each spring can be intuitively fed back, and the operator can make adjustments according to the real-time feedback of the force condition during the operation. The existence of the compression spring greatly increases the fault tolerance rate during the operation; the compression spring is shortened as much as possible while being able to bear the load, thereby reducing the shaking of the boarding pontoon and enhancing the comfort during passing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a vertical cross-sectional view of the large LNG ship boarding pontoon of the present invention.

[0014] Figure 2 It is a horizontal cross-sectional view of the large LNG ship boarding pontoon of the present invention.

[0015] Among them, the specific description of the accompanying drawings is as follows: active platform 1, hinge 2, ground base 3, base connection module 4, compression spring 5. DETAILED DESCRIPTION

[0016] In the description of the present invention, it is necessary to understand that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0017] like Figure 1and Figure 2 As shown, this embodiment provides a large LNG ship boarding pontoon bridge that can resist the effect of tides, including a ground base 3, a base connection module 4, an active platform 1, a compression spring 5 and a pressure sensor. The ground base 3 is in a convex shape, and the base connection module 4 is in a concave shape that matches the ground base 3. The cross-sections of the ground base 3 and the base connection module 4 are both rectangular. The compression spring 5 is arranged on each surface of the ground base 3 and the base connection module 4 correspondingly installed. The compression spring 5 is perpendicular to the surface of the base connection module 4. A pressure sensor is arranged on the compression spring 5. The compression spring 5 is in contact with the base connection module 4. One end of the active platform 1 is hinged to one end of the steel plate through a hinge 2, and the other end of the steel plate is hinged to the base connection module 4 through a hinge 2. The boarding pontoon bridge connects the active platform 1 to the ground through the steel plate for walking. The compression spring 5 is arranged on the upper surface and four side surfaces of the protruding structure of the ground base 3. The compression spring 5 is evenly distributed along the circumference of each surface so that the compression spring 5 perpendicular to the ground can support the base connection module 4. Three compression springs 5 ​​are evenly arranged along each side of each surface. The pressure sensor is used to transmit the force direction and force magnitude to the operator. Under the premise of ensuring the elasticity and stiffness of the compression spring 5, its length is reduced as much as possible to reduce elastic deformation and thus reduce shaking; the force magnitude and direction of the compression spring 5 are obtained through the force sensor installed on the compression spring 5, so as to calculate the angle and magnitude of the adjustment of the floating bridge due to the tidal effect; when the elastic deformation of the compression spring 5 reaches a certain degree, an early warning can be issued to the operator to avoid excessive load on the floating bridge, resulting in shortened service life or even accidents.

[0018] When the boarding pontoon is not in use, a gasket is inserted between the base connection module 4 and the ground base 3 to protect the spring from being in a compressed state for a long time.

[0019] Although the above embodiments have been described in detail for the present invention, it should be understood by those skilled in the art that modifications or improvements may be made based on the contents disclosed in the present invention without departing from the spirit and scope of the present invention, and such modifications and improvements are within the spirit and scope of the present invention.

Claims

1. A large LNG ship boarding floating bridge that can withstand tidal effects, Characterized in that, It includes a ground base, a base connection module, a flexible platform, a compression spring and a pressure sensor. The ground base is convex in shape, the base connection module is concave in shape and matches the ground base. The compression springs are arranged on the corresponding surfaces of the ground base and the base connection module. The compression springs are perpendicular to the surface of the base connection module. The pressure sensors are arranged on the compression springs. The compression springs are in contact with the base connection module. One end of the flexible platform is hinged to one end of a steel plate, and the other end of the steel plate is hinged to the base connection module. The compression springs are arranged on the upper surface and four side surfaces of the protruding structure of the ground base, and the compression springs are evenly distributed along the circumference of each surface.

2. The large LNG ship boarding floating bridge that can withstand tidal effects according to claim 1, Characterized in that, Three compression springs are evenly arranged along each side of each surface.

3. The large LNG ship boarding floating bridge that can withstand tidal effects according to claim 1, Characterized in that, The pressure sensor is used to transmit the direction and magnitude of the force to the operator.

4. The large LNG ship boarding floating bridge that can withstand tidal effects according to claim 1, Characterized in that, When the boarding floating bridge is in a non-use state, a gasket is inserted between the base connection module and the ground base.

5. The large LNG ship boarding floating bridge that can withstand tidal effects according to claim 1, Characterized in that, The cross-sections of the ground base and the base connection module are both rectangular.

Images