Self-resetting support of wharf boat steel approach bridge
By designing a self-reset support for the barge steel guide bridge including a gantry, iron chain and tension spring, the damage problem caused by the flexible structure of the anchor chain and the undulation of the steel guide bridge supports is solved, and the automatic reset of arbitrary displacement between the steel guide bridge and the barge is achieved, protecting the steel guide bridge and reducing noise.
Patent Information
- Application Number
- CN202420684962.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-04-03
AI Technical Summary
The flexible structure of the anchor chain between the barge and the dock causes damage to the steel approach bridge support and cannot effectively adapt to complex working conditions such as waves and undulations and ship squeezing and impact.
A self-resetting support for the barge steel guide bridge is designed, including a gantry, iron chain and pulling spring. The gantry is fixed on the gantry bridge. The iron chain is suspended by the steel guide bridge. The pulling spring provides lateral stability and can automatically reset and adapt to displacement in any direction and angle.
The steel approach bridge and its support are effectively protected, avoiding damage caused by waves and ship crowding, and achieving automatic reset of arbitrary displacement between the steel approach bridge and the barge, simplifying structural design and reducing noise.
Smart Images
Figure CN222845450U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water transport engineering, in particular to a self-resetting support for a pontoon steel approach bridge. Background Art
[0002] Ferry terminals, small docks, and fishing docks often use pontoons and steel approach bridges to transport vehicles or cargo to the shore. The ship docks on the pontoon, and passengers, cargo, and vehicles go ashore via the steel approach bridge.
[0003] The wind and waves in the seaport are relatively strong. Due to technical difficulties, some pontoons and docks are not equipped with poles and are only fixed by anchor chains. However, anchor chains are flexible structures, and they drift horizontally, rise and fall, and twist at large angles, which often cause damage to the steel approach bridge supports and even the steel approach bridge.
[0004] Therefore, it is necessary to provide a steel approach bridge support that can adapt to such complex working conditions. Utility Model Content
[0005] The utility model provides a self-resetting support for a steel approach bridge of a pontoon, which solves the problems of uneven connection, deviation and easy damage of the steel approach bridge caused by wave fluctuations of the pontoon, tension and relaxation of anchor chains, and collision of ships.
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0007] A self-resetting support for a pontoon steel approach bridge, comprising a self-resetting support, wherein the self-resetting support is mounted on the pontoon, and the steel approach bridge is mounted on the pontoon via the self-resetting support; the self-resetting support comprises a portal frame, wherein the upper end of the portal frame is respectively connected to the upper ends of two iron chains, wherein the lower ends of the iron chains are connected to the steel approach bridge, and tension springs are respectively arranged on the inner side surfaces of the lower part of the portal frame, wherein the tension springs are connected to the steel approach bridge.
[0008] Furthermore, a temporary ramp is placed in front of the steel approach bridge.
[0009] Furthermore, the temporary ramp is a steel wedge-shaped body, the side panels and interior of the temporary ramp are made of 8 mm steel plates, the top plate of the temporary ramp is made of 8 mm patterned steel plates, and the width of the temporary ramp is the same as the width of the steel approach bridge deck.
[0010] Furthermore, the gantry is made of H-shaped steel and steel plates, the gantry is arranged in a trapezoidal shape, the height of the gantry is 2.5 to 5.5 meters, the upper width of the gantry exceeds the width of the steel approach bridge deck by 0.3 to 0.8 meters, and the lower width of the gantry exceeds the width of the steel approach bridge deck by 0.6 to 1.6 meters.
[0011] Furthermore, the portal frame is fixed to the deck of the pontoon by bolts.
[0012] Furthermore, the tension value of a single tension spring is 1 to 2.5 kN, the stretching amount is 50 to 100 mm, and the number of tension springs arranged on each side of the door frame is 1 to 7.
[0013] Furthermore, the load-bearing capacity of the iron chain is 35 kN to 350 kN.
[0014] The beneficial effects of the utility model are:
[0015] The utility model does not have any mechanism and moving or rotating parts, and has a very simple structure. It is flexibly connected in all directions, so that displacement in any direction and at any angle can occur between the pontoon and the steel approach bridge, and can adapt to complex conditions such as the ups and downs of the pontoon, the tension and relaxation of the anchor chain, and the impact of ships. At the same time, the impact force between the ship and the pontoon will not be transmitted to the steel approach bridge, thereby effectively protecting the steel approach bridge and its supports.
[0016] The utility model uses a suspension structure to automatically reset the steel approach bridge after it is displaced forwards and backwards, and uses a tension spring to automatically reset the steel approach bridge after it is displaced leftwards and rightwards. The entire self-resetting support structure can automatically reset any displacement between the steel approach bridge and the pontoon.
[0017] The utility model places a temporary ramp in front of the steel approach bridge for temporary use by disabled people as a barrier-free passage.
[0018] The suspension point of the steel approach bridge of the utility model is at the front end of the last step of the approach bridge, thus ensuring that no matter how the steel approach bridge rises and falls, the step height never changes, and the passage is safe and comfortable.
[0019] The lower part of the steel approach bridge of the utility model is suspended and separated from the pontoon, has no rolling and sliding parts, and does not generate noise when in use.
[0020] Based on the above reasons, the utility model can be widely promoted in the field of water transport engineering technology. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions of 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 It is a schematic elevation view of the utility model.
[0023] Figure 2 It is a plan view of the utility model.
[0024] Figure 3It is a schematic cross-sectional view 1-1 of the utility model when the steel approach bridge is horizontal.
[0025] Figure 4 It is a schematic cross-sectional view 1-1 of the steel approach bridge in the utility model at an elevation angle.
[0026] Figure 5 It is a schematic cross-sectional view 1-1 of the steel approach bridge of the utility model at a depression angle.
[0027] Figure 6 It is a schematic cross-sectional view of the steel approach bridge 2-2 of the utility model.
[0028] Figure 7 It is a schematic cross-sectional view 3-3 of the steel approach bridge of the utility model.
[0029] Description of Figure Numbers:
[0030] 1. Self-resetting bearing; 11. Door frame; 12. Iron chain; 13. Tension spring; 14. Temporary ramp; 2. Steel approach bridge; 3. Pontoon. DETAILED DESCRIPTION
[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0034] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0035] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.
[0036] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0037] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.
[0038] The utility model provides a technical solution: a self-resetting support for a steel approach bridge of a pontoon, such as Figure 1-7 As shown, it includes: a self-resetting support 1, a steel approach bridge 2, and a pontoon 3. The self-resetting support 1 is installed on the pontoon 3. The steel approach bridge 2 is connected to the pontoon 3 through the self-resetting support 1. The temporary ramp 14 can be temporarily placed in front of the steel approach bridge 2 and fixed by friction for temporary use by disabled people.
[0039] The side plates and internal partitions of the temporary ramp 14 are made of 8 mm steel plates, and the top plate is made of 8 mm patterned steel plates. The length is 1.2 meters, the width is the same as the width of the steel approach bridge deck, and the height is 0.15 meters.
[0040] The basic structure of the self-resetting support 1 is a gantry 11, which is fixed to the deck of the pontoon 3 with bolts; two iron chains 12 are suspended from the gantry 11 to suspend the steel approach bridge 2; two tension springs 13 extend from the side of the gantry 11 to stabilize the steel approach bridge 2.
[0041] The net height of the portal frame 11 is 2.5 to 5.5 m, the upper width exceeds the bridge deck width of the steel approach bridge by 0.3 to 0.8 m on each side, and the lower width exceeds the bridge deck width of the steel approach bridge by 0.6 to 1.6 m on each side. Its performance meets the requirements of the "Design Code for Steel Structures for Water Transport Engineering (JTS152-2012)".
[0042] The iron chain 12 is a finished anchor chain, and its bearing capacity is 35kN to 350kN, which is specifically determined according to the load of the steel approach bridge 2. The upper end of the iron chain 12 is suspended on the gantry 11 structure, and the lower end is suspended on the steel approach bridge 2. The iron chain 12 can swing with the waves, but will eventually return to its initial position.
[0043] The tension spring 13 is a finished tension spring. The tension value of a single tension spring 13 is 1 to 2.5 kN, the stretching amount is 50 to 100 mm, and the number set on a single side is 1 to 7. The tension value and number are determined according to the weight, wind-exposed area, and wind pressure of the steel approach bridge 2. The tension spring 13 is installed with an initial tensioning force. The tension spring can be stretched and relaxed with the wind and waves, and swayed left and right, but will eventually return to its initial position.
[0044] The steel approach bridge 2 is a truss bridge or a beam bridge, with a length of 12 to 42 meters and a width of 1.5 to 8 meters; the pontoon 3 is a steel closed unpowered ship, also known as a floating dock, and its plane size, tonnage, and draft are determined by the nature of the dock; the temporary ramp 14 is a steel wedge.
[0045] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A self-resetting support for a steel approach bridge of a pontoon, characterized in that: The invention comprises a self-resetting support (1), wherein the self-resetting support (1) is installed on a pontoon (3), and a steel approach bridge (2) is installed on the pontoon (3) via the self-resetting support (1); the self-resetting support (1) comprises a door frame (11), wherein the upper end of the door frame (11) is respectively connected to the upper ends of two iron chains (12), and the lower ends of the iron chains (12) are connected to the steel approach bridge (2); tension springs (13) are respectively arranged on the inner side surfaces of the lower part of the door frame (11), and the tension springs (13) are connected to the steel approach bridge (2).
2. The self-resetting support for the steel approach bridge of a pontoon according to claim 1 is characterized in that: A temporary ramp (14) is placed in front of the steel approach bridge (2).
3. The self-resetting support for the steel approach bridge of a pontoon according to claim 2, characterized in that: The temporary ramp (14) is a steel wedge-shaped body. The side panels and interior of the temporary ramp (14) are made of 8 mm steel plates. The top panel of the temporary ramp (14) is made of 8 mm patterned steel plates. The width of the temporary ramp (14) is the same as the width of the bridge deck of the steel approach bridge (2).
4. The self-resetting support for the steel approach bridge of a pontoon according to claim 1, characterized in that: The portal frame (11) is made of H-shaped steel and steel plates. The portal frame (11) is arranged in a trapezoidal shape. The height of the portal frame (11) is 2.5 to 5.5 meters. The upper width of the portal frame (11) exceeds the bridge deck width of the steel approach bridge (2) by 0.3 to 0.8 meters. The lower width of the portal frame (11) exceeds the bridge deck width of the steel approach bridge (2) by 0.6 to 1.6 meters.
5. The self-resetting support for the steel approach bridge of a pontoon according to claim 4, characterized in that: The portal frame (11) is fixed on the deck of the pontoon (3) by means of bolts.
6. The self-resetting support for the steel approach bridge of a pontoon according to claim 1, characterized in that: The tension value of a single tension spring (13) is 1 to 2.5 kN, and the stretching amount is 50 to 100 mm. The number of tension springs (13) arranged on each side of the door frame (11) is 1 to 7.
7. The self-resetting support for the steel approach bridge of a pontoon according to claim 1, characterized in that: The load-bearing capacity of the iron chain (12) is 35 kN to 350 kN.