A flexible joint for floating body connection

Abstract

The present invention discloses a flexible joint for connecting floating bodies, including a spherical shell part, a ball head part and a rope. The spherical shell part is provided with a spherical shell seat connected to floating body A and a hemispherical shell fixed on the spherical shell seat. The ball head part is provided with a spherical head seat connected to floating body B and a hemispherical head fixed on the ball head seat and mating with the hemispherical shell. The rope pulls the hemispherical shell and the hemispherical head together. The hemispherical head and the hemispherical shell form a ball hinge under the tension of the rope. The present invention adopts a rope to bear tension, and a ball hinge to bear other forces. It can transmit the relative movement and force between the two connected floating bodies, is suitable for high sea conditions, and can ensure reliable connection between floating bodies. In addition, the present invention has strong adaptability, simple and reliable structure, and convenient and quick connection and release operations.

Description

Technical Field

[0001] The invention relates to a connection joint, in particular to a flexible joint for floating body connection. Background Art

[0002] Patent document CN101209747A discloses a combined articulated joint for an offshore buoy, which is composed of a flexible connector and a shear connector. The flexible connector is composed of two flexible connector seats, a long single-ear slider, a short single-ear slider, a long single-ear connecting shaft, a short single-ear connecting shaft, a connecting plate, an elastic retaining ring for the shaft, a gate pin and a lifting eye screw; gate pin plug-in hole openings are provided at both ends of the flexible connector seat, the long single-ear slider is connected to the long single-ear connecting shaft, and the short single-ear slider is connected to the short single-ear connecting shaft; the connecting shafts are respectively fixed to the connecting plates, and the end faces of the connecting shafts are respectively provided with elastic retaining rings for the shaft, and gate pins are provided in the gate pin plug-in hole openings, and a lifting eye screw is fixed at the end of the flexible connector seat; the shear connector includes a connector A round tube fixed to the connector A seat and a connector B semicircular sleeve fixed to the connector B seat. The articulated joint has the following problems:

[0003] 1) The two floating bodies connected by the articulated joint can only transmit motion in one degree of freedom, and the articulated joint needs to bear force in the other degrees of freedom.

[0004] 2) The articulated joint is a combined joint composed of a flexible connector and a shear connector, and occupies a relatively large plane area. The flexible connector has a complex structure, bulky components, and needs to be used in pairs, which requires very high installation accuracy. Not only is the manufacturing cost high, but the installation requires special tools and fixtures to ensure positioning accuracy. At the same time, heavy auxiliary equipment and equipment are also required to coordinate when assembling the two floating bodies. Summary of the invention

[0005] The present invention provides a flexible joint for connecting floating bodies to solve the technical problems existing in the known technology. The flexible joint can transmit movement and force in multiple directions, is applicable to high sea conditions, and can ensure reliable connection between floating bodies.

[0006] The technical solution adopted by the present invention to solve the technical problems existing in the known technology is: a flexible joint for connecting a floating body, including a spherical shell part, a ball head part and a rope, the spherical shell part is provided with a spherical shell seat connected to the floating body A and a hemispherical shell fixed on the spherical shell seat, the ball head part is provided with a spherical head seat connected to the floating body B and a hemispherical head fixed on the ball head seat and matched with the hemispherical shell, the rope pulls the hemispherical shell and the hemispherical head together, and the hemispherical head and the hemispherical shell form a ball hinge under the pulling force of the rope.

[0007] A groove is provided at the center of the bottom of the hemispherical shell, and a groove is provided at the center of the top of the hemispherical head. The rope passes through the bottom center groove of the hemispherical shell and the top center groove of the hemispherical head. One end of the rope is bolted to the ball shell seat and the hemispherical shell, and the other end is bolted to the ball head seat and the hemispherical head.

[0008] One end of the rope is provided with an end rope buckle A and a lock buckle A, and the other end is provided with an end rope buckle B and a lock buckle B. The two ends of the rope are respectively arranged on the center lines of the hemispherical head and the hemispherical shell. The end rope buckle A of the rope passes through the bottom of the hemispherical shell, extends into the spherical shell seat, and is connected to the spherical shell seat through a movable bolt A. The lock buckle A is locked at the bottom of the bottom central groove of the hemispherical shell. The end rope buckle B of the rope passes through the hemispherical head, extends into the ball head seat, and is connected to the ball head seat through a movable bolt B. The lock buckle B is arranged at the bottom of the top central groove of the hemispherical head.

[0009] The inner diameter of the bottom central groove of the hemispherical shell is adapted to the outer diameter of the lock buckle A, and the lock buckle A is fitfully embedded in the bottom central groove of the hemispherical shell; the inner diameter of the top central groove of the hemispherical head is larger than the outer diameter of the lock buckle B, and the lock buckle B can be shakenly sunk in the top central groove of the hemispherical head.

[0010] A wear-resistant sliding block is inlaid on the inner spherical surface of the hemispherical shell or on the outer spherical surface of the hemispherical head.

[0011] The ball shell seat adopts a box-type plate frame structure, and is provided with a pin hole A adapted to the movable bolt A and a manhole A located above the pin hole A, a cover plate A is provided on the manhole A, and the cover plate A is located on the ball shell seat box deck; the hemispherical shell is embedded and welded on the ball shell seat; the ball head seat adopts a box-type plate frame structure, and is provided with a pin hole B adapted to the movable bolt B and a manhole B located above the pin hole B, a cover plate B is provided on the manhole B, and the cover plate B is located on the ball head seat box deck; the hemispherical head is embedded and welded on the hemispherical seat.

[0012] The advantages and positive effects of the present invention are:

[0013] 1) The flexible joint uses ropes to bear tension and ball joints to bear other forces. It can transmit the relative movement and force between the two connected buoys, is suitable for high sea conditions, and can ensure reliable connection between buoys.

[0014] 2) The flexible joint has strong adaptability, which is reflected in: 1) it can be used between floating bodies of any length, width and different drafts; 2) according to the specific circumstances of the connection between the two floating bodies, one or two or more flexible connecting joints can be used on the connection surface; 3) for floating bodies of different length, width and different drafts, the flexible joint can be easily installed.

[0015] 3) The structure is simple and reliable; the connection and release of the float are convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an assembly front view of the present invention;

[0017] Figure 2 for Figure 1 Side view of

[0018] Figure 3 for Figure 1 A top view of

[0019] Figure 4 It is the front view of the working state of the present invention;

[0020] Figure 5 Schematic diagram of the application of the present invention.

[0021] In the figure: 1-1, spherical shell seat; 1-2, hemispherical shell; 1-3, movable bolt A; 1-4, cover plate A; 2-1, ball head seat; 2-2, hemispherical head; 2-3, movable bolt B; 2-4, cover plate B; 3-1, end rope buckle A; 3-2, lock buckle A; 3-3, lock buckle B; 3-4, end rope buckle B; 4-1, float A; 4-2, float B. DETAILED DESCRIPTION

[0022] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0023] See also Figure 1 to Figure 4 , a flexible joint for floating body connection, comprising a spherical shell part, a spherical head part and a rope.

[0024] The spherical shell part is provided with a spherical shell seat 1-1 connected to the floating body A4-1 and a semi-spherical shell 1-2 fixed on the spherical shell seat 1-1.

[0025] The ball head part is provided with a ball head seat 2-1 connected to the float B4-2 and a hemispherical head 2-2 fixed on the ball head seat 2-1 and mating with the hemispherical shell 1-2.

[0026] The rope pulls the hemispherical shell 1-2 and the hemispherical head 2-2 together, and the hemispherical head 2-2 and the hemispherical shell 1-2 form a ball hinge structure under the pulling force of the rope.

[0027] The present invention integrates a rope that bears tension with a ball-hinged structure that bears other forces. All forces except tension are borne by the ball-hinged surface. Force and motion are transmitted on the ball-hinged surface, and motion and force in multiple directions can be transmitted. This method is suitable for high sea conditions and can ensure reliable connection between floating bodies.

[0028] In this embodiment, a groove is provided in the center of the bottom of the hemispherical shell 1-2, and a groove is provided in the center of the top of the hemispherical head 2-2. The rope passes through the bottom central groove of the hemispherical shell and the top central groove of the hemispherical head, and one end of the rope is bolted to the ball shell seat 1-1 and the hemispherical shell 1-2, and the other end is bolted to the ball head seat 2-1 and the hemispherical head 2-2. More specifically, one end of the rope is provided with an end rope buckle A3-1 and a lock buckle A3-2, and the other end is provided with an end rope buckle B3-4 and a lock buckle B3-3. The two ends of the rope are arranged on the center lines of the hemispherical head 2-2 and the hemispherical shell 1-2, respectively. The end rope buckle A3-1 of the rope passes through the bottom of the hemispherical shell 1-2 and extends into the ball shell seat 1-1 and is connected to the ball shell seat 1-1 through a movable bolt A1-3. The lock buckle A3-2 is locked at the bottom of the bottom central groove of the hemispherical shell 1-2. The end rope buckle B3-4 of the rope passes through the hemispherical head 2-2 and extends into the ball head seat 2-1 and is connected to the ball head seat 2-1 through a movable bolt B2-3. The lock buckle B3-3 is arranged at the bottom of the top central groove of the hemispherical head. The rope is used to bear tension. The lock buckle A3-2 and the lock buckle B3-3 are used to change the force direction of the rope and reduce the friction of the moving structure on the rope. In order to realize that the tension of the rope takes the lock A and the lock B as the force inflection points, reduce the wear of the rope and extend the service life of the rope, the inner diameter of the bottom central groove of the hemispherical shell 1-2 is adapted to the outer diameter of the lock A3-1, and the lock A3-1 is fitfully embedded in the bottom central groove of the hemispherical shell 1-2; the inner diameter of the top central groove of the hemispherical head 2-2 is larger than the outer diameter of the lock B3-3, and the lock B3-3 can be shakenly sunk in the top central groove of the hemispherical head 2-2.

[0029] In this embodiment, in order to reduce friction resistance and reduce spherical surface wear, a wear-resistant slider is embedded on the inner spherical surface of the hemispherical shell 1-2 or on the outer spherical surface of the hemispherical head 2-2.

[0030] In this embodiment, the ball shell seat 1-1 adopts a box-type plate frame structure, and is provided with a pin hole A adapted to the movable bolt A1-3 and a manhole A located above the pin hole A, and a cover plate A1-4 is provided on the manhole A, and the cover plate A1-4 is located on the box deck of the ball shell seat 1-1; the hemispherical shell 1-2 is embedded and welded on the ball shell seat 1-1; the ball head seat 2-1 adopts a box-type plate frame structure, and is provided with a pin hole B adapted to the movable bolt B2-3 and a manhole B located above the pin hole B, and a cover plate B2-4 is provided on the manhole B, and the cover plate B2-4 is located on the box deck of the hemispherical seat; the hemispherical head 2-2 is embedded and welded on the hemispherical seat 2-1.

[0031] See also Figure 5 When the above-mentioned flexible joint is used, the ball shell seat 1-1 is welded to the outer plate on one side of the float A4-1, and the ball head seat 2-1 is welded to the outer plate on one side of the float B4-2. The ball shell seat 1-1 and the ball head seat 2-1 are at the same height from the water surface. When connecting the floats, firstly, the end rope buckle B3-4 of the rope is inserted from the outside into the hemispherical head 2-2, passing through the top central groove of the hemispherical head and the middle through hole, until the lock buckle B3-3 is blocked by the bottom of the top central groove of the hemispherical head, insert the movable bolt B2-3, straighten the part of the rope between the lock buckle B3-3 and the movable bolt B2-3 and bolt it to the ball head seat 2-1, that is, use the movable bolt B2-3 and the lock buckle B3-3 to bolt the rope to the ball head part; then open the cover A1-4, insert the auxiliary traction rope into the pin hole A, and make the auxiliary traction rope pass through the hemispherical shell 1- 2 and its middle through hole, connected to the end rope buckle A3-1 of the rope, the two floats are brought close to each other, the auxiliary traction rope is pulled back, the end rope buckle A3-1 of the rope is driven to pass through the bottom central groove and its middle through hole of the hemispherical shell 1-2 to the pin hole A, the movable bolt A1-3 is inserted, and the rope is bolted to the spherical shell part by using the movable bolt A1-3 and the lock buckle A3-2. The reason is the same as above. At this time, the lock buckle A3-2 is locked at the bottom of the bottom central groove of the hemispherical shell 1-2, and the hemispherical head 2-2 and the hemispherical shell 1-2 form a ball hinge under the tension of the rope. In order to reduce the deflection angle and tilt angle of the middle part of the rope, the inner diameter of the top central groove of the hemispherical head 2-2 can be larger than the outer diameter of the lock buckle B3-3, so that the lock buckle B3-3 can shake in the top central groove of the hemispherical head 2-2 with the external force, so as to reduce the tensile deformation angle of the rope and extend the service life of the rope. Finally, cover the cover plate A1-4 to complete the flexible connection of one connection point of the float.

[0032] The above-mentioned flexible joint can be used to connect multiple floating bodies of different lengths, widths and depths into one. The floating bodies can be connected longitudinally or transversely. The above-mentioned flexible joint adopts an integrated structure, which can withstand tension, compression, bending, shear and torsion. It can transmit motion and force between floating bodies under high sea conditions, ensuring that multiple floating bodies are reliably connected together.

[0033] Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific embodiments, which are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can make many forms without departing from the scope of protection of the present invention and the claims, all of which fall within the scope of protection of the present invention.

Claims

1. A flexible joint for floating body connection, characterized in that: It includes a ball shell, a ball head and a rope. The spherical shell part is provided with a spherical shell seat connected to the floating body A and a hemispherical shell fixed on the spherical shell seat. The ball head part is provided with a ball head seat connected to the floating body B and a hemispherical head fixed on the ball head seat and mating with the hemispherical shell. The rope pulls the hemispherical shell and the hemispherical head together, and the hemispherical head and the hemispherical shell form a ball hinge under the pulling force of the rope; A groove is provided at the center of the bottom of the hemispherical shell, and a groove is provided at the center of the top of the hemispherical head. The rope passes through the bottom center groove of the hemispherical shell and the top center groove of the hemispherical head. One end of the rope is bolted to the ball shell seat and the hemispherical shell, and the other end is bolted to the ball head seat and the hemispherical head. One end of the rope is provided with an end rope buckle A and a lock buckle A, and the other end is provided with an end rope buckle B and a lock buckle B. The two ends of the rope are respectively arranged on the center lines of the hemispherical head and the hemispherical shell. The end rope buckle A of the rope passes through the bottom of the hemispherical shell, extends into the spherical shell seat, and is connected to the spherical shell seat through a movable bolt A. The lock buckle A is locked at the bottom of the bottom central groove of the hemispherical shell. The end rope buckle B of the rope passes through the hemispherical head, extends into the ball head seat, and is connected to the ball head seat through a movable bolt B. The lock buckle B is set at the bottom of the top central groove of the hemispherical head.

2. The flexible joint for floating body connection according to claim 1, characterized in that: The inner diameter of the bottom central groove of the hemispherical shell is adapted to the outer diameter of the lock buckle A, and the lock buckle A is fittedly embedded in the bottom central groove of the hemispherical shell; The inner diameter of the top central groove of the hemispherical head is larger than the outer diameter of the lock buckle B, and the lock buckle B is swingably sunk in the top central groove of the hemispherical head.

3. The flexible joint for floating body connection according to claim 1, characterized in that: A wear-resistant sliding block is inlaid on the inner spherical surface of the hemispherical shell or on the outer spherical surface of the hemispherical head.

4. The flexible joint for floating body connection according to claim 1, characterized in that: The spherical shell seat adopts a box-type plate frame structure, and is provided with a pin hole A adapted to the movable bolt A and a manhole A located above the pin hole A, and a cover plate A is provided on the manhole A, and the cover plate A is located on the deck of the spherical shell seat box; the hemispherical shell is embedded and welded on the spherical shell seat; The ball head seat adopts a box-type plate frame structure, and is provided with a pin hole B adapted to the movable bolt B and a manhole B located above the pin hole B. A cover plate B is provided on the manhole B, and the cover plate B is located on the ball head seat box deck; the hemispherical head is embedded and welded on the ball head seat.

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