A subsurface buoy break protection device

Abstract

The present invention relates to a breaking protection device for a subsurface buoy, which includes a breaking rope, a main cylinder, an upper suspension ring, a lower suspension ring, and also includes an outer sleeve, an elastic member, a supporting ring, a positioning ring, a conical cap, etc. Among them, the breaking rope is arranged inside the main cylinder, and the upper and lower ends of the breaking rope are respectively fixed on the upper and lower suspension rings; an opening groove is provided at the upper end of the main cylinder, and an installation hole is provided at the lower end of the main cylinder; the upper suspension ring is embedded in the opening groove and is connected to the cable of the water surface part of the subsurface buoy, and the lower suspension ring is installed in the installation hole and is connected to the underwater part of the subsurface buoy. This device can break when the water surface part is subjected to external strong pulling force, thereby protecting the high-value underwater part, and when subjected to the rotational force of the upper and lower cables inside the system, the main cylinder drives the upper and lower suspension rings to rotate synchronously, avoiding the breaking of the breaking rope due to excessive self-twisting, and also avoiding the twisting and breaking of the power supply, communication and other cables arranged in parallel at the breaking rope, so that the breaking rope only plays a role in the case of external force dragging and collision, etc.

Description

Technical Field

[0001] The present invention belongs to the technical field of marine monitoring equipment, and particularly relates to a break protection device for a mooring buoy. Background Art

[0002] The mooring buoy system is an important technical equipment for marine scientific research, preliminary investigation of underwater engineering, marine military, and marine development. It can comprehensively and continuously monitor the internal situation of the ocean unattended, long-term, and automatically under harsh marine environmental conditions. The mooring buoy system is a series of devices fixed to the same cable system from the water surface to the seabed. Each device is arranged at different water depth levels, and the number of devices is large and the value is high.

[0003] When the mooring buoy is deployed in a fishing ground or near the coast, since the floating buoy or the attached device on the mooring buoy is close to the water surface, it may be caught and towed by the fishing net or other objects deployed by fishermen. In this way, the mooring buoy system is easily subjected to tensile force and is dragged as a whole, thus damaging the overall structure and causing huge losses. Therefore, it is necessary to set a break protection device between the near-surface part and the underwater part of the mooring buoy system. The breaking force of the device is less than both the net gravity of the mooring buoy system in water and the breaking bearing capacity of other parts of the cable system. When the surface part is accidentally fished by fishermen or dragged by other unstable factors, the device can break, and the upper part of it can be towed away, thereby protecting other high-value observation instruments and equipment below the break device, enabling them to continue to work normally, obtaining valuable underwater measurement data, and increasing the success rate of recovery.

[0004] In the prior art, the breaking rope is the most reliable and effective break protection device. However, the breaking rope is a flexible rope. When the mooring buoy system is under an external force, the upper and lower parts of the breaking rope will twist. When the twisting reaches a certain degree, on the one hand, the breaking rope itself will be twisted off, causing the system to break without being dragged by an external force; on the other hand, the breaking rope will be twisted together with the power supply, communication and other cables arranged in parallel, causing the power supply and communication cables to break and fail. The original cable system composed of an integrated steel cable, etc., because its own torsional recovery force is strong, will converge the rotational force to the mechanical swivel position in the mooring buoy cable system and release it, and the above-mentioned faults will not occur.

[0005] Due to the existence of the above reasons, the application of the breaking rope in a mooring buoy system with a relatively complex structure is restricted. Currently, a mooring buoy system with a complex cable system that connects a large number of underwater and above-water devices and has parallel cables for connection, power supply, and communication often does not have a drag break protection device, and the risk of total loss of the entire system is very high.

[0006] Existing breaking protection devices have the defect that they break on their own without external influence. For example, Chinese Patent CN201980385 discloses a breaking protection device for a submersible buoy. It uses a short nylon rope and a long nylon rope as the breaking protection device. By calculating the breaking force and measuring the breaking force that each strand of nylon rope can withstand, the number of strands of nylon rope is set so that the nylon rope breaks when the force reaches a certain level, protecting the measuring instruments below the nylon rope from being dragged away. In actual application, even without the influence of external dragging force, when the upper and lower ends of the device are subjected to rotational forces from the mooring cable or other components, the breaking rope itself will be twisted and deformed, and then break, thus losing the breaking protection function. This defect also exists in a large number of other breaking device technologies.

[0007] Therefore, a breaking protection device is needed that can maintain the strong torsional recovery force of the original cable system of the submersible buoy system, overcome the damage caused by internal torsion of the submersible buoy system, and without additionally enhancing the tensile capacity, maintain the breaking accuracy of the breaking rope, and only play a role under external force dragging, collision and other conditions. Summary of the Invention

[0008] The purpose of the present invention is to provide a breaking protection device for a submersible buoy, aiming to solve how to overcome the influence of the internal rotational force of the submersible buoy system and only play a role under external force dragging, collision and other conditions. The design of the present invention is simple and easy to use. At the same time, considering the problem that the breaking rope will rotate underwater, it protects the breaking force of the breaking rope from being interfered by other factors, maintains the breaking accuracy of the breaking rope, and can be effectively applied in the breaking protection scenario of the submersible buoy.

[0009] To solve the above technical problems, the technical solution adopted by the present invention is:

[0010] A breaking protection device for a submersible buoy, including a breaking rope, and also including a main cylinder, an upper suspension ring, and a lower suspension ring. Among them, the breaking rope is arranged inside the main cylinder, and the upper and lower ends of the breaking rope are respectively fixed on the upper suspension ring and the lower suspension ring; an opening groove is provided at the upper end of the main cylinder, and an installation hole is provided at the lower end of the main cylinder. The upper suspension ring is embedded in the opening groove, and the lower suspension ring is installed in the installation hole. The upper and lower suspension rings are used to connect the cable systems of the water surface part and the underwater part of the submersible buoy system. When external force dragging occurs, the upper suspension ring moves upward in the opening groove, and the breaking rope breaks due to overload; when subjected to the rotational force of the upper and lower cables inside the system, the main cylinder drives the upper and lower suspension rings to rotate synchronously, transmitting the torsional force along the cable system, and no torsion will occur at the breaking rope, avoiding the breaking of the breaking rope due to its own torsion and also avoiding the twisting and breaking of power supply, communication and other cables arranged in parallel at the breaking rope.

[0011] In order to prevent the upper lifting ring from falling out of the opening groove of the main tube and causing the device to fail, the present buoy breakage protection device also includes a coupling device, which includes an outer sleeve, which is fitted onto the upper end of the main tube, and has a through hole, in which the suspension shaft of the upper lifting ring is installed. The outer sleeve is used to limit the mutual displacement between the upper lifting ring and the main tube except for the axial sliding in the opening groove, so as to ensure that the upper lifting ring will not get stuck on the main tube due to axial deflection after the breaking rope breaks, causing the upper and lower parts of the buoy to fail to separate.

[0012] In order to adapt to the change in length of the breaking rope under the action of tension and the uniform force on the upper hoisting ring and the outer sleeve, the coupling device also includes a telescopic member, a supporting ring and a positioning ring. The supporting ring is sleeved on the outer wall of the main tube. The telescopic member is used to connect the supporting ring and the outer sleeve. The positioning ring is connected to the outer thread of the main tube through the internal thread. The telescopic member, the supporting ring and the positioning ring are used to adjust the relative position of the outer sleeve and the main tube to adapt to the length of the breaking rope. The positioning ring is rotated, and the outer sleeve is evenly lifted along the axial direction by using the telescopic member and the supporting ring, and the appropriate elasticity is maintained, so that the breaking rope is kept in a taut state, so that the whole device is kept in a compact state, which is convenient for connection when used. It can also adapt to the elastic expansion and contraction of the breaking rope under the change of tension, and prevent the breaking rope from sliding to the corners on the upper hoisting ring hanging shaft, so that the upper hoisting ring and the outer sleeve are unbalanced, resulting in axial deflection, and stuck on the main tube, so that the breaking tension of the whole system has an error with the actual design index.

[0013] In order to further limit the axial deflection of the outer sleeve extending out of the main sleeve and enhance the torsional strength of the open groove portion on the main sleeve, the coupling device also includes a conical cap, which is threaded on the inner wall of the upper end of the outer sleeve. The conical cap can be spirally moved up and down within the internal thread range of the outer sleeve, and the cone portion of the conical cap extends into the main sleeve. In order to adapt to the difference in the length of the breaking rope, the upper part of the outer sleeve will extend out of the main sleeve after adjusting the position of the telescopic part and other components. The conical cap is used to prevent the outer sleeve from shaking with the main sleeve due to the single-end limit formed by extending out of the main sleeve, and by interfering with the open groove, when the outer sleeve is subjected to a rotational force, the main sleeve is supported from the inside, the torsional strength of the main sleeve open groove position is enhanced, and the main sleeve is prevented from torsional deformation, and the outer sleeve is stuck so that it cannot be detached after the breaking rope is broken.

[0014] Furthermore, a threaded portion is provided on the outer wall of the main tube for threading the positioning ring.

[0015] Preferably, the telescopic member is a compression spring.

[0016] Furthermore, the conical cap is threadedly connected to the outer sleeve.

[0017] As an optimization, the upper lifting ring and the lower lifting ring both include a lifting shaft and a lifting arm, and the lifting arm is buckled on the lifting shaft for easy disassembly.

[0018] A breaking protection device for a moored buoy can overcome the influence of the internal rotational force of the moored buoy system. When subjected to the rotational force of the upper and lower cables inside the system, the main cylinder drives the upper and lower suspension rings to rotate synchronously, avoiding the breaking of the breaking rope due to its own twisting and also preventing the twisting and breaking of parallelly arranged power supply, communication and other cables at the breaking rope. It only functions under external force dragging, collision, etc., expanding the applicable range of the current breaking rope. This device is a breaking device for the water part of the moored buoy system, and effectively protects the high-value underwater main part by breaking the water part of the moored buoy system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further describes a breaking protection device for a moored buoy of the present invention in conjunction with the drawings:

[0020] Figure 1 It is a schematic front view plane structure diagram of the breaking protection device for the moored buoy;

[0021] Figure 2 is Figure 1 an exploded view of the components;

[0022] Figure 3 It is a schematic side view plane structure diagram of the breaking protection device for the moored buoy;

[0023] Figure 4 is Figure 3 an exploded view of the components;

[0024] Figure 5 is Figure 3 a sectional view taken along the line A-A of;

[0025] In the figures:

[0026] 1 - breaking rope; 2 - main cylinder; 21 - opening groove, 22 - mounting hole, 23 - threaded part; 3 - upper suspension ring, 4 - lower suspension ring; 341 - suspension shaft, 342 - suspension arm; 5 - coupling device; 51 - outer sleeve, 52 - positioning member, 53 - telescopic member, 54 - conical cap; 511 - through hole, 521 - supporting ring, 522 - positioning ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] As Figures 1 to 5 shown, a breaking protection device for a moored buoy system includes a breaking rope 1, and also includes a main cylinder 2, an upper suspension ring 3, and a lower suspension ring 4. Both the upper suspension ring 3 and the lower suspension ring 4 are composed of a suspension shaft 341 and a suspension arm 342, and the suspension arm 342 is buckled on the suspension shaft 341.

[0028] Wherein, the breaking rope 1 is arranged in the main tube 2, and the upper and lower ends of the breaking rope 1 are respectively fixed on the upper lifting ring 3 and the lower lifting ring 4; the upper end of the main tube 2 is provided with an open groove 21, and the lower end of the main tube 2 is provided with a mounting hole 22, the upper lifting ring 3 is embedded in the open groove 21, and the lower lifting ring 4 is installed in the mounting hole 22. The upper and lower lifting rings are used to connect the pull cable of the surface part and the underwater part of the submerged buoy system. When external force drag occurs, the upper lifting ring moves upward in the open groove, and the breaking rope is overloaded and broken; when subjected to the rotational force of the upper and lower cable systems inside the system, the main tube drives the upper and lower lifting rings to rotate synchronously, so as to avoid the breaking rope from being broken due to excessive twisting of itself, and also to avoid twisting the power supply, communication and other cables arranged in parallel at the breaking rope.

[0029] The present buoy breaking protection device further comprises a coupling device 5, which is an inductive coupling device in this embodiment, and the coupling device 5 comprises an outer sleeve 51, which is connected to the upper end of the main tube 2, and has a through hole 511, in which the upper hanging ring 3 is installed. The outer sleeve is used to limit the mutual displacement between the upper hanging ring and the main tube except the axial sliding in the open groove, so as to ensure that the displacement of the upper hanging ring will not be stuck due to axial deflection.

[0030] The coupling device 5 also includes a positioning member 52 and a telescopic member 53. In this embodiment, the telescopic member 53 is a compression spring. The positioning members 52 are respectively mounted and threaded on the outer wall of the main tube 2, and the telescopic member 53 is used to connect the positioning member 52 and the outer sleeve 51. The positioning member and the telescopic member are used to evenly lift the outer sleeve along the axial direction and maintain appropriate elasticity, thereby keeping the breaking rope in a taut state, so that the entire device remains compact and easy to connect when used. It can adapt to the elastic expansion and contraction of the breaking rope under the change of tension, and prevent the breaking rope from sliding to the corners on the upper hoisting ring and the hanging shaft, so that the upper hoisting ring and the outer sleeve are unbalanced, resulting in axial deflection, and stuck on the main tube, so that the breaking tension of the outer sleeve has an error with the actual design index.

[0031] The coupling device 5 further comprises a conical cap 54, which is arranged at the upper end of the outer sleeve 51, and the cone portion of the conical cap 54 extends into the main cylinder 2, and the conical cap 54 is threadedly connected with the outer sleeve 51. The conical cap is used to prevent the outer sleeve from shaking with the main cylinder due to the single-end limit formed by extending out of the main cylinder, and by interfering with the opening groove, when the outer sleeve is subjected to a rotational force, the main cylinder is supported from the inside, the torsional strength of the main cylinder opening groove position is enhanced, and the main cylinder is prevented from torsion deformation, and the outer sleeve is stuck so that it cannot be separated after the breaking rope is broken.

[0032] A section of thread part 23 is provided on the outer wall of the main cylinder 2 for threadedly connecting a positioning member. The positioning member 52 includes a supporting ring 521 and a positioning ring 522. The supporting ring sleeves a part of the thread part 23 of the main cylinder, and the positioning ring is threadedly connected to the thread part 23. The supporting ring is used for installing and supporting an elastic member, and the positioning ring is used for adjusting the supporting position of the supporting ring.

[0033] The internal part of the breaking protection device of this moored buoy system is a breakable cable. When subjected to an overload tensile force, it will break to protect the scientific instruments connected to the lower layer. A coupling device is provided at the upper part of the device. When an external rotational force is applied, it can ensure that the upper and lower parts connected by the device rotate together, thereby avoiding the breakage of the breaking rope due to its own twisting and also avoiding the twisting and breaking of the power supply, communication and other cables arranged in parallel at the breaking rope. In addition, a coupling device and the like are provided outside to ensure the compactness and effectiveness of the device structure, and to ensure the accuracy of the breaking force of the breaking rope without being affected by other additional devices, avoiding errors between the breaking tensile force and the actual one.

[0034] The above embodiments are intended to illustrate that the present invention can be implemented or used by those skilled in the art. It will be obvious to those skilled in the art to modify the above embodiments. Therefore, the present invention includes but is not limited to the above embodiments. Any method, process, product that conforms to the description of the claims or the specification and conforms to the principles, novelty and creativity characteristics disclosed in this article falls within the protection scope of the present invention.

Claims

1. A subsurface buoy break protection device, comprising a breaking rope (1), characterized in that: It further includes a main cylinder (2), an upper suspension ring (3), and a lower suspension ring (4). Among them, the breaking rope (1) is arranged inside the main cylinder (2), and the upper and lower ends of the breaking rope (1) are respectively fixed on the upper suspension ring (3) and the lower suspension ring (4); an opening groove (21) is provided at the upper end of the main cylinder (2), and an installation hole (22) is provided at the lower end of the main cylinder (2). The upper suspension ring (3) is embedded in the opening groove (21), and the lower suspension ring (4) is installed in the installation hole (22); it further includes a coupling device (5). The coupling device (5) includes an outer sleeve (51). The outer sleeve (51) is sleeved on the upper end of the main cylinder (2), and a through hole (511) is formed in the outer sleeve (51). The upper suspension ring (3) is installed in the through hole (511); the coupling device (5) further includes a positioning member (52) and a telescopic member (53). The positioning member (52) is partially screwed on the outer wall of the main cylinder (2), and the telescopic member (53) is used to connect the positioning member (52) and the outer sleeve (51); the coupling device (5) further includes a conical cap (54). The conical cap (54) is arranged at the upper end of the outer sleeve (51), and the frustum part of the conical cap (54) extends into the main cylinder (2); a threaded part (23) is provided on the outer wall of the main cylinder (2); the positioning member (52) includes a supporting ring (521) and a positioning ring (522). The supporting ring is sleeved outside the threaded part (23), and the positioning ring is screwed on the threaded part (23).

2. The underwater mooring buoy breaking protection device according to claim 1, characterized in that: The telescopic member (53) is a compression spring.

3. The breaking protection device for a subsurface buoy according to claim 1, wherein: The conical cap (54) is screwed to the outer sleeve (51).

4. The subsurface buoy breaking protection device according to any one of claims 1 to 3, characterized in that: Both the upper suspension ring (3) and the lower suspension ring (4) include a suspension shaft (341) and a suspension arm (342), and the suspension arm (342) is buckled on the suspension shaft (341).

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