Bottom structure for ship
By combining a protective box and threaded connection, along with a rotating wheel and locating pin, the problem of easy loosening of the screw is solved, thus achieving stability and convenient maintenance of the hull structure.
Patent Information
- Application Number
- CN202520043070.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2035-01-09
AI Technical Summary
In existing ship bottom structures, the bolt fixing method is easily loosened and detached due to water flow impact, affecting the stability of the hull and the convenience of maintenance.
The design incorporates a combination of a protective box, mounting base, screw, mounting plate, and insert guard plate. Through threaded connections and a rotating wheel structure, it prevents water from directly impacting the screw. The combination of locating pins and locating holes facilitates the installation and removal of the base plate.
It effectively prevents the screws from loosening and falling off, improves the stability of the hull, simplifies the installation and disassembly process of the bottom plate, and enhances the convenience of maintenance.
Smart Images

Figure CN223559807U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to ship bottom structure technical field, concretely is a ship bottom structure for ship. BACKGROUND
[0002] As a kind of water transport, people pursue speed higher and higher. When boat advances in water, it is subjected to gravity, buoyancy, resistance and the thrust generated by the power device of boat, wherein gravity and buoyancy are a pair of balanced forces in vertical direction, the resistance received by hull is force in horizontal direction or can be decomposed into force in horizontal direction, and the thrust of boat is force in horizontal direction.
[0003] According to the ship bottom structure for improving the sailing speed of ship of application number 202321689624. X, the bottom plate and the mounting plate are fixed by two positioning screws, the bottom plate and the mounting plate can be removed after loosening the positioning screws, the split flow part and the splitter plate are replaced, and the convenience of maintenance is improved.
[0004] However, the above ship bottom structure has certain deficiencies. The structure bottom plate is fixed by screw rod, but since the installation position of screw rod is located at the bottom of hull, when hull is running, it will be impacted by water, and after long-time impact of water flow on screw rod, screw rod will be loosened, which leads to the situation that bottom plate and mounting plate fall off, thus there is certain deficiency. Therefore, we propose a ship bottom structure for ship. UTILITY MODEL CONTENT
[0005] In view of the deficiencies of prior art, the utility model provides a ship bottom structure for ship, which solves the problems proposed in the above background art.
[0006] To achieve the above purpose, the utility model is implemented by the following technical scheme: a ship bottom structure for ship, comprising a hull, an installation slot is formed in the bottom of the hull, a bottom plate is installed in the bottom of the hull and inside the installation slot, threaded holes are formed in the inside of the hull and the two sides of the bottom plate, fixed bolts are screw-mounted in the threaded holes, protective boxes are fixedly installed on the outside of the fixed bolts on the two sides of the hull, mounting seats are fixedly installed on the two sides of the hull, screw rods are screw-mounted in the inside of the mounting seats, mounting plates are rotatably installed at one end of the screw rods, insertion protection plates are fixedly installed at the bottom of the mounting plates, insertion slots are formed in the inside of the protective boxes, the insertion protection plates cooperate with the insertion slots, and rotating wheels are fixedly installed at the other end of the screw rods.
[0007] Preferably, a plurality of positioning pins are fixedly installed on one side of the inside of the installation slot, a plurality of positioning holes are formed in the inside of one side of the bottom plate, and the positioning pins cooperate with the positioning holes.
[0008] Preferably, a plurality of splitter plates are fixedly installed at the bottom of the bottom plate.
[0009] Preferably, the top of the mounting plate and on both sides of the screw rod are fixedly installed with guide rods, and the guide rods are in sliding connection with the mounting seat.
[0010] Preferably, the insertion guard plate is matched with the fixing bolt, and the inside of the bottom of the protection box is provided with a limiting groove matched with the insertion guard plate.
[0011] Preferably, the inside of the mounting seat is respectively provided with holes matched with the screw rod and the guide rod.
[0012] The utility model provides a ship bottom structure for ship, has the following beneficial effects:
[0013] 1、 this ship bottom structure for ship, through the setting of protection box, mounting seat, screw rod, mounting plate, insertion guard plate and insertion slot, the outside of fixing bolt is installed with protection box and insertion guard plate, can avoid the direct impact of water flow to fixing bolt in the driving way of ship body, thereby avoids its loose and falls off the situation, avoids causing unnecessary loss.
[0014] 2、 this ship bottom structure for ship, through the setting of installation slot, bottom plate, screw hole, fixing bolt, positioning pin and positioning hole, the installation and fixed of bottom plate are convenient, and installation and disassembly are convenient and fast. DRAWINGS
[0015] Figure 1 It is the structural schematic diagram of the utility model;
[0016] Figure 2 It is the side view of the utility model;
[0017] Figure 3 It is the bottom plate of the bottom of the utility model and is cut open schematically;
[0018] Figure 4 It is the utility model Figure 2 The enlarged view of A in it;
[0019] Figure 5 It is the utility model Figure 2 The enlarged view of B in it;
[0020] Figure 6 It is the utility model Figure 2 The enlarged view of C in it;
[0021] Figure 7 It is the utility model Figure 3 The enlarged view of D in it.
[0022] In the figure: 1, hull; 2, mounting groove; 3, bottom plate; 4, threaded hole; 5, fixing bolt; 6, protective box; 7, mounting seat; 8, screw rod; 9, mounting plate; 10, insertion guard plate; 11, insertion groove; 12, guide rod; 13, rotating wheel; 14, positioning pin; 15, positioning hole; 16, flow distribution plate. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.
[0024] Please refer to Figures 1 to 7 The utility model provides a kind of technical scheme: a kind of marine ship bottom structure, including hull 1, the bottom of hull 1 is provided with mounting groove 2, the bottom of hull 1 and the inside of mounting groove 2 are equipped with bottom plate 3, the inside of the both sides of hull 1 and bottom plate 3 is provided with threaded hole 4, threaded hole 4 is equipped with fixed bolt 5 in the inside thread, the both sides of hull 1 and the outside of fixed bolt 5 are fixedly installed with protective box 6, the both sides of hull 1 are fixedly installed with mounting seat 7, the inside of mounting seat 7 is equipped with screw rod 8, one end of screw rod 8 is rotatably installed with mounting plate 9, the bottom of mounting plate 9 is fixedly installed with insertion guard plate 10, insertion guard plate 10 cooperates with fixed bolt 5, the inside of the bottom of protective box 6 is provided with limiting slot cooperated with insertion guard plate 10, the inside of protective box 6 is provided with insertion groove 11, insertion guard plate 10 cooperates with insertion groove 11, the other end of screw rod 8 is fixedly installed with rotating wheel 13, the top of mounting plate 9 and the both sides of screw rod 8 are fixedly installed with guide rod 12, guide rod 12 is slidably connected with mounting seat 7, the inside of mounting seat 7 is respectively provided with hole cooperated with screw rod 8 and guide rod 12, wherein the side of protective box 6 is conical, to improve its flow guiding property with water flow, reduce resistance, wherein the function of guide rod 12 is used to guide and limit mounting plate 9, ensure that it is vertically up and down, wherein mounting seat 7 and rotating wheel 13 are all arranged at the both sides of hull 1 and the part higher than wading depth, avoid the impact of water flow on rotating wheel 13 to cause screw rod 8 to rotate.
[0025] The inside of one side of mounting groove 2 is fixedly installed with a plurality of positioning pins 14, the inside of the side of bottom plate 3 is provided with a plurality of positioning holes 15, positioning pin 14 cooperates with positioning hole 15, the bottom of bottom plate 3 is fixedly installed with a plurality of flow distribution plates 16, wherein the function of positioning pin 14 and positioning hole 15 is to facilitate the installation and positioning of bottom plate 3.
[0026] In summary, the ship bottom structure, when the bottom plate 3 needs to be disassembled, maintained and replaced, the screw rod 8 is first rotated by the rotating wheel 13, so that the screw rod 8 is moved upward through the thread, thereby driving the mounting plate 9 and the plug-in guard plate 10 to rise, the plug-in guard plate 10 is pulled out from the plug-in slot 11, the fixing bolt 5 is pulled out, then the fixing bolt 5 is disassembled from one side of the ship body 1 and is removed from the threaded hole 4 to release the fixation of the bottom plate 3, then the bottom plate 3 is pulled from the bottom of the ship body 1, the positioning pin 14 is pulled out from the positioning hole 15, and the bottom plate 3 is disassembled, which is convenient and fast for disassembly and assembly.
[0027] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A marine hull structure comprising a hull (1), characterized in that: The bottom of the ship body (1) is provided with a mounting groove (2), the bottom of the ship body (1) and inside the mounting groove (2) are provided with a bottom plate (3), the inside of the ship body (1) and the bottom plate (3) are provided with threaded holes (4), the threaded holes (4) are provided with fixed bolts (5), the both sides of the ship body (1) and outside the fixed bolts (5) are provided with protective boxes (6), the both sides of the ship body (1) are provided with mounting seats (7), the inside of the mounting seats (7) are provided with screw rods (8), one end of the screw rods (8) is rotatably provided with mounting plates (9), the bottom of the mounting plates (9) is fixedly provided with plug protection plates (10), the inside of the protective boxes (6) is provided with slots (11), the plug protection plates (10) are matched with the slots (11), the other end of the screw rods (8) is fixedly provided with rotating wheels (13).
2. A marine hull structure according to claim 1, characterised in that: One side of the inside of the mounting groove (2) is fixedly provided with a plurality of positioning pins (14), the inside of one side of the bottom plate (3) is provided with a plurality of positioning holes (15), the positioning pins (14) are matched with the positioning holes (15).
3. A marine hull construction according to claim 1, characterised in that: The bottom of the bottom plate (3) is fixedly provided with a plurality of shunt plates (16).
4. A marine hull construction according to claim 1, characterised in that: The top of the mounting plate (9) and both sides of the screw rod (8) are fixedly provided with guide rods (12), the guide rods (12) are slidably connected with the mounting seats (7).
5. A marine hull construction according to claim 1, characterised in that: The plug protection plates (10) are matched with the fixed bolts (5), the inside of the bottom of the protective boxes (6) is provided with limiting grooves matched with the plug protection plates (10).
6. A marine hull construction according to claim 1, characterised in that: The inside of the mounting seats (7) is respectively provided with holes matched with the screw rods (8) and the guide rods (12).
Citation Information
Patent Citations
Boat bottom structure for increasing navigational speed of ship
CN220562891U