Connecting device between steel open caisson and floating-assisting plate
By using a double waterproof barrier of sealing the circular base plate with the inner wall of the steel caisson and the waterstop, combined with the detachable connection of the high-strength bolt assembly, the problems of poor water sealing and difficulty in disassembly between the steel caisson and the buoyancy aid plate are solved, achieving stable buoyancy control and rapid disassembly and assembly, thus improving construction efficiency and safety.
Patent Information
- Application Number
- CN202423278716.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In the existing technology, the connection device between the steel caisson and the buoyancy plate has poor water-stopping effect and is difficult to disassemble easily, which affects the launching and positioning accuracy of the steel caisson.
The structure adopts a combination of a circular base plate, a waterstop, fasteners, and lateral support components. The circular base plate is welded to the inner wall of the steel caisson, the waterstop forms a double waterproof barrier, and the high-strength bolt assembly enables detachable connection.
It provides reliable water-stopping effect and convenient disassembly method, improves the buoyancy control and positioning accuracy of steel caissons, and enhances the stability of connection and construction safety.
Smart Images
Figure CN223607898U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to caisson construction technical field especially relates to a connecting device between steel sinking well and floatation assisting plate. BACKGROUND
[0002] The floatation assisting structure is a kind of steel sinking well auxiliary buoyancy device, and its main function is to provide necessary buoyancy support for the process of steel sinking well launching and sea transportation.The structure significantly enhances the buoyancy of steel sinking well by constructing water stop barrier at the bottom of steel sinking well, thereby effectively solving the problem of floating difficulty caused by insufficient water depth of steel sinking well.Therefore, it is extremely necessary for the connecting structure between floatation assisting structure and steel sinking well to have better waterproof performance and stress stability.Secondly, after steel sinking well is successfully towed to the designated position, whether the floatation plate can be quickly and accurately removed plays a key role in the positioning accuracy of steel sinking well sinking.
[0003] Therefore, the control difficulties of steel sinking well in the process of launching, towing and positioning sinking are analyzed, and a connecting device is invented, which is safe and reliable in water stop, and the floatation assisting structure can be easily separated from steel sinking well. CONTENT OF UTILITY MODEL
[0004] The utility model is to solve the main technical problem to provide a connecting device between steel sinking well and floatation plate, which has reliable water stop effect and can easily separate the floatation assisting structure from steel sinking well.
[0005] In order to solve the above technical problems, the utility model provides a connecting device between steel sinking well and floatation plate, which comprises a circle-shaped bottom plate, a water stop belt, a fastener and a lateral support piece;The outer contour of the circle-shaped bottom plate is structured to match the inner contour of the steel sinking well;The lateral support piece is fixed to the top of the circle-shaped bottom plate;The lateral support piece is arranged at intervals along the extension direction of the circle-shaped bottom plate;The lateral support piece and the figure-shaped bottom plate are flush in vertical direction along the outer periphery;The water stop belt is arranged at the bottom of the figure-shaped bottom plate, and is closed along the extension direction of the circle-shaped bottom plate;
[0006] When the connecting device connects the steel sinking well and the floatation plate: the circle-shaped bottom plate and the lateral support piece are welded to the inner wall of the steel sinking well, and the outer edge of the circle-shaped bottom plate is sealed with the inner wall of the steel sinking well;The floatation plate is detachably fixed to the bottom of the circle-shaped bottom plate by the fastener.
[0007] In a preferred embodiment, the lateral support piece comprises a corbel;The corbel comprises at least one web;The web is welded vertically to the top of the circle-shaped bottom plate along the width direction of the figure-shaped bottom plate;The web and the figure-shaped bottom plate are flush in vertical direction along the outer side.
[0008] In a preferred embodiment, the bracket further comprises a rib plate; the rib plate is simultaneously welded perpendicularly to the patterned bottom plate and the web.
[0009] In a preferred embodiment, the lateral support further comprises a plurality of stiffening plates; the stiffening plates are arranged at intervals along the extension direction of the ring-shaped bottom plate; the stiffening plates are welded perpendicularly to the top of the patterned bottom plate along the width direction of the ring-shaped bottom plate; the stiffening plates are flush with the ring-shaped bottom plate along the vertical direction at the outer side.
[0010] In a preferred embodiment, the waterstop comprises water pressure bearing rubber and water-swelling rubber; the water pressure bearing rubber and the water-swelling rubber are arranged side by side along the extension direction of the ring-shaped bottom plate.
[0011] In a preferred embodiment, a positioning steel plate is further included; when the ring-shaped bottom plate is connected to the buoyancy-aiding plate, the positioning steel plate abuts against both sides of the waterstop and is welded to the buoyancy-aiding plate.
[0012] In a preferred embodiment, the fastener is a high-strength bolt assembly comprising a high-strength bolt and a nut; the patterned bottom plate is provided with a first clearance through hole along the thickness direction, and the top of the buoyancy-aiding plate is provided with a second clearance through hole along the vertical direction; when the connecting device is connected to the buoyancy-aiding plate, the high-strength bolt passes through the second clearance through hole and the first clearance through hole, and the ring-shaped bottom plate is fixed to the top of the buoyancy-aiding plate through the threaded cooperation with the nut.
[0013] In a preferred embodiment, when the high-strength bolt assembly fastens the patterned bottom plate and the buoyancy-aiding plate, the nut is located above the first clearance through hole.
[0014] In a preferred embodiment, the edge distance between any two adjacent lateral supports is not greater than 400 mm.
[0015] In a preferred embodiment, the height of the ring-shaped bottom plate to the bottom of the steel caisson is equal to the structural height of the buoyancy-aiding plate.
[0016] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:
[0017] The connecting device provided by the embodiment of the utility model forms two stable water-stop lines by welding the graphic base plate and the steel sinking well inner wall and setting a water-stop belt between the ring-shaped base plate and the floatation-aiding plate.Secondly, the water-stop pressure rubber and the water-swelling rubber of the water-stop belt cooperate with each other on the inside and outside, forming an effective double waterproof barrier.Moreover, the first bracket, the second bracket and the stiffener are arranged to improve the lateral rigidity when the ring-shaped base plate is connected with the steel sinking well, so that the structure of the connecting device is more stable.In addition, the high-strength bolt assembly is used to detachably connect the connecting device and the floatation-aiding plate, and the nut for loosening is arranged on the upper surface of the graphic base plate, so that the floatation-aiding plate can be quickly and conveniently detached by the construction personnel under water. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a top view schematic diagram of the connecting device in the embodiment of the utility model;
[0019] Figure 2 It is a sectional view schematic diagram of the connecting device when connecting the steel sinking well and the floatation-aiding plate in the embodiment of the utility model;
[0020] Figure 3 It is a sectional view schematic diagram of the connecting device in the embodiment of the utility model;
[0021] Figure 4 It is a sectional view schematic diagram of the connecting place of the connecting device and the floatation-aiding plate in the embodiment of the utility model.
[0022] In the drawing, it is marked as: 1- connecting device between the steel sinking well and the floatation-aiding plate, 11- ring-shaped base plate, 110- first let go through hole, 12- lateral support piece, 121- bracket, 1211- first bracket, 1212- second bracket, 1213- web, 1214- rib plate, 1215- top plate, 123- stiffener, 13- water-stop belt, 131- water-stop pressure rubber, 132- water-swelling rubber, 14- positioning steel plate, 15- high-strength bolt assembly, 151- high-strength bolt, 152- nut, 2- steel sinking well, 3- floatation-aiding plate, 30- second let go through hole. DETAILED DESCRIPTION
[0023] The technical scheme in the embodiment of the utility model will be clearly and completely described below by combining with the drawings in the embodiment of the utility model; obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.
[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0026] like Figures 1-4 As shown, this embodiment of the present invention provides a connecting device 1 between a steel caisson 2 and a buoyancy plate 3, including a circular base plate 11, a waterstop 13, fasteners, and lateral support members 12. In this embodiment, the fasteners are high-strength bolt assemblies 15. In terms of overall structure, the outer contour of the circular base plate 11 matches the inner contour of the steel caisson 2. The lateral support members 12 are welded at intervals to the top of the circular base plate 11 along its extension direction. The waterstop 13 is located at the bottom of the circular base plate 11 and closes along its extension direction. When it is necessary to connect the steel caisson 2 and the buoyancy plate 3, the outer edge of the circular base plate 11 is sealed to the inner wall of the steel liner, and the high-strength bolt assembly 15 detachably fixes the buoyancy plate 3 to the bottom of the circular base plate 11. At this time, the waterstop 13 is squeezed by the circular base plate 11 and the buoyancy plate 3, providing full-circumference waterproofing. The lateral support 12 is welded to the steel caisson 2 to improve the lateral stiffness of the connecting device 1 when connected to the steel caisson 2.
[0027] The structure and connection relationship of each component of the connecting device 1 will now be further explained with reference to the figures.
[0028] It is easy to understand that, to achieve waterproofing, the outer contour of the graphic base plate 11 should match the inner contour of the steel caisson 2 to achieve a full-circumference sealed connection. Simultaneously, the width of the graphic base plate 11 should be greater than the distance from the buoyancy aid 3 to the inner wall of the steel caisson 2. For example... Figure 1As shown, in this embodiment, the graphic bottom plate 11 is generally square and has chamfers of different forms at the corners. In other embodiments, according to the contour of the steel caisson 2, the graphic bottom plate 11 can be circular, regular polygon, etc. The graphic bottom plate 11 is closed along the extension direction. In this embodiment, the graphic bottom plate 11 and the corbel 121 described below are made of Q355 steel plates with a thickness of 16 mm.
[0029] As Figure 1 shown, a number of the lateral support members 12 are arranged at intervals on the graphic bottom plate 11 in the extension direction. The corbels 121 are the lateral support members 12 with a top view of "cross" and "field" shapes, while the stiffening ribs are the lateral support members 12 with a top view of "one" shape. For the convenience of description, the lateral support member 12 with a "cross" shape is defined as the first corbel 1211, and the lateral support member 12 with a "field" shape is defined as the second corbel 1212. Now, in combination with Figure 1 , Figure 3 , different types of lateral support members 12 will be described.
[0030] The first corbel 1211 includes a web 1213, a rib plate 1214 and a top plate 1215. The web 1213 is perpendicularly welded to the top of the graphic bottom plate 11 along the width direction of the graphic bottom plate 11. The rib plate 1214 is perpendicularly welded to both the graphic bottom plate 11 and the web 1213 at the same time, and forms a "cross" structure with the web 1213 to improve the lateral stiffness of the web 1213. The top plate 1215 is parallel to the graphic bottom plate 11, and the bottom is perpendicularly welded to the top of the web 1213. The graphic bottom plate 11, the web 1213 and the top plate 1215 are flush with each other in the vertical direction on the outside, so that the first corbel 1211 can be welded to the inner wall of the steel caisson 2 on this side. Compared with the first corbel 1211, the second corbel 1212 is provided with three parallel webs 1213, so it has stronger bearing capacity. Therefore, as Figure 1 shown, for each side of the graphic bottom plate 11, the second corbel 1212 is often arranged at the mid-span position to compensate for the lower structural stiffness at this position. It should be understood that in other embodiments, the number of the webs 1213 of the second corbel 1212 can be two, or four or more. Such non-substantive replacements should not depart from the protection scope of the present invention.
[0031] By Figure 1It can be seen that the stiffening plate 123 is arranged between any two adjacent corbels 121. The stiffening plate 123 is similar to the web plate 1213 in structure and connection mode: the stiffening plate 123 is arranged in the extension direction of the ring-shaped floor 11; the stiffening plate 123 is vertically welded to the top of the patterned floor 11 in the width direction of the ring-shaped floor 11; and the stiffening plate 123 is flush with the patterned floor 11 in the vertical direction on the outer side. In order to ensure that the connection device 1 has sufficient structural rigidity, the distance between any one stiffening plate 123 and the adjacent stiffening plate 123 or web plate 1213 in the extension direction of the patterned floor 11 is not more than 400 mm. In other words, the edge distance between any two adjacent lateral support members 12 is not more than 400 mm.
[0032] As shown in Figures 3-4 The waterstop 13 is bonded to the bottom of the ring-shaped floor 11 and is composed of water pressure bearing rubber 131 and water-swelling rubber 132 in parallel in the extension direction of the ring-shaped floor 11. In this embodiment, the thickness of the water pressure bearing rubber 131 is 10 mm and the width is 80 mm; the thickness of the water-swelling rubber 132 is 10 mm and the width is 50 mm. When the fastener connects the ring-shaped floor 11 and the buoyancy plate 3, the water pressure bearing rubber 131 and the water-swelling rubber 132 are extruded in the thickness direction. The water pressure bearing rubber 131 is further tightly bonded to the upper and lower parts after being extruded, forming the first water barrier. After the fastener is locked, the distance between the patterned floor 11 and the buoyancy plate 3 is fixed, so the water pressure bearing rubber 131 should have good resistance to deformation to avoid structural relaxation due to the accumulation of its own plastic deformation, resulting in water gaps at the connection. The water-swelling rubber 132 as the second water barrier is arranged on the inner side of the water pressure bearing rubber 131. Even if a small amount of water penetrates the first water barrier, the water-swelling rubber 132 can swell to fill the gap. As shown in Figure 4 The connection device 1 further includes a positioning steel plate 14. The thickness of the positioning steel plate 14 is less than the thickness of the waterstop 13. When the ring-shaped floor 11 is connected with the buoyancy plate 3, the positioning steel plate 14 is abutted on both sides of the waterstop 13 and is welded with the buoyancy plate 3 to position the installation of the waterstop 13 in the width direction.
[0033] The high-strength bolt assembly 15 includes a high-strength bolt 151 and a nut 152. In the present embodiment, the high-strength bolt 151 is a M16 high-strength bolt. The ring-shaped base plate 11 is provided with a first clearance hole 110 in the thickness direction, and the top of the buoyancy plate 3 is provided with a second clearance hole 30 in the vertical direction. When the connecting device 1 is connected to the buoyancy plate 3, the first clearance hole 110 and the second clearance hole 30 are vertically aligned, and then the high-strength bolt 151 passes through the second clearance hole 30 and the first clearance hole, and is fixed to the top of the buoyancy plate 3 by threadedly engaging with the nut 152. Further, in the present embodiment, the bolt fastens the ring-shaped base plate 11 and the buoyancy plate 3 from bottom to top, that is, after the bolt assembly is locked, the nut 152 is located above the first clearance hole 110. In this way, during subsequent underwater operations, the operator only needs to release the nut 152 from above, so that the bolt is separated from the first clearance hole 110 and the second clearance hole 30 under the action of gravity, thereby quickly dismounting the buoyancy plate 3 from the connecting device 1, saving time and effort, and improving the safety of underwater construction. In the present embodiment, the bottom of each first bracket 1211 and second bracket 1212 is symmetrically provided with two first clearance holes 110.
[0034] When the connecting device 1 connects the steel caisson 2 and the buoyancy plate 3: the ring-shaped base plate 11, the first bracket 1211, the second bracket 1212, and the stiffening plate 123 are all vertically welded to the inner wall of the steel caisson 2. If necessary, the outer edge of the ring-shaped base plate 11 is sealed to the inner wall of the steel caisson 2 to ensure that the connection surface is water-tight. The high-strength bolt assembly 15 is arranged in a top-down manner to detachably fix the buoyancy plate 3 to the bottom of the ring-shaped base plate 11. The bolt assembly should be fully locked so that the water stop 13 is fully extruded. Preferably, in the present embodiment, the height of the ring-shaped base plate 11 to the bottom of the steel caisson 2 is equal to the structural height of the buoyancy plate 3, so that the bottom of the steel caisson and the buoyancy plate 3 are at the same horizontal level, facilitating overall transportation.
[0035] In conclusion, the connecting device 1 provided by the embodiment of the utility model forms two stable water-stopping lines by sealing welding the graphic bottom plate 11 and the inner wall of the steel sinking well 2 and setting the water-stopping belt 13 between the ring-shaped bottom plate 11 and the floatation-aiding plate 3. Secondly, the water-stopping pressure rubber 131 and the water-swelling rubber 132 of the water-stopping belt 13 cooperate with each other inside and outside, forming an effective double waterproof barrier. Moreover, the setting of the first bracket 1211, the second bracket 1212 and the stiffener 123 improves the lateral rigidity when the graphic bottom plate 11 is connected with the steel sinking well 2, so that the structure of the connecting device 1 is more stable. In addition, the connecting device 1 and the floatation-aiding plate 3 are detachably connected by the high-strength bolt assembly 15, and the nut 152 for tension is arranged on the upper surface of the ring-shaped bottom plate 11, so that the construction personnel can quickly and conveniently detach the floatation-aiding plate 3 when underwater.
[0036] The above merely describes the preferred specific embodiments of the utility model, and is not intended to limit the patent range of the utility model, and any equivalent transformation using the content of the utility model specification belongs to the protection range of the utility model.
Claims
1. A connection between a steel caisson and a floatation board, characterized in that: The connecting device comprises a ring-shaped base plate, a water-stop belt, fasteners and lateral supports; The outer contour of the ring-shaped base plate is configured to match the inner contour of the steel caisson; The lateral supports are fixed to the top of the ring-shaped base plate and are arranged along the extension direction of the ring-shaped base plate; the lateral supports are flush with the ring-shaped base plate in the vertical direction along the outer periphery; The water-stop belt is arranged at the bottom of the ring-shaped base plate and is closed along the extension direction of the ring-shaped base plate; When the connecting device connects the steel caisson and the buoyancy plate, the ring-shaped base plate and the lateral supports are welded to the inner wall of the steel caisson, and the outer edge of the ring-shaped base plate is sealed to the inner wall of the steel caisson; the buoyancy plate is detachably fixed to the bottom of the ring-shaped base plate by the fasteners.
2. A connecting device between a steel caisson and a buoyancy panel according to claim 1, characterized in that: The lateral supports comprise corbels; The corbels comprise at least one web plate, which is welded to the top of the ring-shaped base plate in the width direction of the ring-shaped base plate; the web plate is flush with the ring-shaped base plate in the vertical direction along the outer side.
3. A connection between a steel caisson and a buoyancy panel according to claim 2, characterized in that: The corbels further comprise a rib plate, which is welded to the ring-shaped base plate and the web plate.
4. A connecting device between a steel caisson and a buoyancy panel according to claim 1, characterized in that: The lateral supports further comprise a plurality of stiffening plates; The stiffening plates are arranged along the extension direction of the ring-shaped base plate; the stiffening plates are welded to the top of the ring-shaped base plate in the width direction of the ring-shaped base plate; the stiffening plates are flush with the ring-shaped base plate in the vertical direction along the outer side.
5. A connecting device between a steel caisson and a buoyancy panel according to claim 1, characterized in that: The water-stop belt comprises water-pressure bearing rubber and water-swelling rubber, which are arranged side by side along the extension direction of the ring-shaped base plate.
6. A connecting device between a steel caisson and a buoyancy panel according to claim 1, characterized in that: The connecting device further comprises positioning steel plates, which abut the two sides of the water-stop belt and are welded to the buoyancy plate when the ring-shaped base plate is connected to the buoyancy plate.
7. A connecting device between a steel caisson and a buoyancy panel according to claim 1, characterized in that: The fasteners are high-strength bolt assemblies, which comprise high-strength bolts and nuts; The ring-shaped base plate is provided with a first clearance hole in the thickness direction, and the top of the buoyancy plate is provided with a second clearance hole in the vertical direction; When the connecting device is connected to the buoyancy plate, the high-strength bolts pass through the second clearance hole and the first clearance hole, and the ring-shaped base plate is fixed to the top of the buoyancy plate by threadedly engaging with the nuts.
8. A connection between a steel caisson and a floatation aid according to claim 7, characterized in that: When the high-strength bolt assemblies fasten the ring-shaped base plate and the buoyancy plate, the nuts are located above the first clearance hole.
9. A connecting device between a steel caisson and a floatation board according to claim 1, characterized in that: The edge distance between any two adjacent lateral supports is not greater than 400 mm.
10. A connecting device between a steel caisson and a buoyancy panel according to claim 1, characterized in that: The height of the ring-shaped base plate from the bottom of the steel caisson is equal to the structural height of the buoyancy plate.