Combined vibration reduction flag

Abstract

The utility model discloses a combined vibration reduction flag which comprises a wrapping body wrapping a rope body and a supporting piece supporting the wrapping body. When the vibration reduction flag works underwater, the wrapping body is of an annular structure, the supporting piece is of a through structure, water flow penetrates through the supporting piece, the supporting piece penetrates through and is attached to the wrapping body, and the supporting piece is arranged in a space formed by the rope body and the annular wrapping body. According to the utility model, periodic vortex-induced vibration of the rope caused by ocean current and sea wave effects is effectively reduced, signal crosstalk and attenuation caused by vibration of the rope are reduced in acoustic dragging and hydrophone array operation processes, and signal receiving quality is improved; when the submarine cable is laid, vibration caused by vortex generated when ocean current flows through is reduced, friction between the submarine cable and seabed rock at the elastic supports at the two ends is reduced, surface breakage caused by long-time friction is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of underwater cable shockproofing, and specifically relates to a combined vibration reduction flag. Background Art

[0002] Submarine cables are cables laid on the bottom of rivers, lakes and seas. They have a history of more than a hundred years. They were initially used to supply power to offshore lighthouses and other equipment. Today, they are used for power grid connections and communication connections between islands and the mainland or between islands, between land and offshore wind farms, and offshore drilling platforms, as well as short-distance river crossings. Their functions have also evolved from simple power cables and communication cables to today's optoelectronic composite cables that can simultaneously transmit power and communications.

[0003] Due to the unevenness of the seabed or the erosion of the seabed by currents and waves, it is easy for the suspended end of the submarine cable (referred to as the cable span) to not be in direct contact with the seabed surface. When the current passes through the suspended section, it will be accompanied by periodic vortex emission, causing periodic vortex-induced vibration of the cable span. The vortex-induced vibration of the cable span will cause friction between the submarine cable and the seabed rock. Long-term friction will cause damage to the surface of the submarine cable, seriously affecting its service life. How to reduce the vibration caused by vortices formed by currents and waves is crucial to the life of the cable. Utility Model Content

[0004] The purpose of the utility model is to provide a vibration reduction flag to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A combined vibration-reducing flag includes a covering body that wraps a rope body and a supporting member that supports the covering body. The covering body can be in a strip shape when not in operation, and two positions of the covering body are respectively provided with connecting members, and the two connecting members can be connected to each other. When the connecting members are connected to each other, the covering body is an annular structure. When the vibration-reducing flag is working in water, the covering body is an annular structure, and the supporting member is a through structure, and the water flow passes through the supporting member, and the supporting member passes through and fits the covering body, and the supporting member is arranged in the space formed by the rope body and the annular covering body.

[0007] Preferably, when the vibration-damping flag is working in water, the sheath is an annular structure, and the rope body passes through the sheath and fits with the sheath.

[0008] Preferably, both ends of the coating body are acute-angled.

[0009] Preferably, Velcro is provided at both ends of the covering body and near the corners.

[0010] Preferably, the covering body is made of a soft material, such as nylon. The supporting member is made of one or more of nylon or plastic.

[0011] Preferably, the figure of the cross section of the support member has opposite oblique lines and the included angle between the extension lines of the two oblique lines is an acute angle.

[0012] Preferably, the support member.

[0013] Preferably, the cross section of the support member is conical, triangular or trapezoidal.

[0014] Preferably, the support member is symmetrically provided with stoppers each having a groove.

[0015] Preferably, when the vibration-damping flag is working in water, the rope body passes through a plurality of combined vibration-damping flags, and the distance between adjacent combined vibration-damping flags is less than the width of the supporting member.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The covering body of the utility model can be a strip of soft material when not in use, which is convenient for storing the covering body and saves storage space for the covering body. Connectors are designed at two positions of the covering body. After the covering body is folded in half, the two connectors are connected to each other so that the covering body is ring-shaped, and the rope body and the covering body fit together. These two designs can wrap the rope body.

[0018] In the design of the utility model, when the vibration-damping flag works in water, the covering body is an annular structure, the support member is arranged in the space formed by the rope body and the annular covering body, and the support member passes through and fits the covering body. This design ensures that the support member supports the covering body made of soft material and maintains the shape of the support body when working underwater.

[0019] In the design of the utility model, when the vibration reduction flag works underwater, the support member is a through structure, and water flows through the support member, thereby reducing the resistance of the water flow near the vibration reduction flag, and when the support member is recovered, the support member can be easily removed using a pick.

[0020] The utility model designs the connecting piece of the covering body as a Velcro structure. When the curled rope collecting body is recovered, the Velcro can be opened to open the annular covering body, so that the support piece and the vibration reduction flag are separated conveniently.

[0021] The tail of the covering body of the utility model is designed to be an acute angle. After the covering body is folded in half, the two ends form a dovetail shape. The dovetail shape can be extended to release the disturbance stress, alleviate the vibration caused by turbulence formed by irregular water masses, and further reduce the vortex-induced vibration formed by currents and waves.

[0022] The covering body of the utility model is designed to be a soft material, which can be nylon, XXX. The soft material helps to follow the direction of water flow in water, reduce water resistance, extend and release turbulent flow stress, and reduce vortex-induced vibrations formed by currents and waves.

[0023] The support member of the utility model is symmetrically provided with stoppers each having a groove, and a pick can be used to press against the grooved portion to separate the support member from the covering body.

[0024] The cross-section of the support member of the utility model is triangular, trapezoidal or conical, which can ensure that the support member in the annular covering body has inclined surfaces on both sides. The inclined surfaces help to reduce water resistance, extend and release turbulent flow stress, and reduce vortex-induced vibrations formed by currents and waves.

[0025] When the vibration-damping flag of the utility model works in water, the rope body passes through a plurality of combined vibration-damping flags, and the distance between adjacent combined vibration-damping flags is smaller than the width of the supporting member. The vibration-damping flag does not need to be fixedly connected in the annular sheathing body, and the supporting member and the sheathing body will not be separated due to the impact of the water flow. In addition, it can be ensured that the vibration-damping flag can freely rotate 360° around the rope body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the utility model when working;

[0027] Figure 2 A schematic diagram of the structure when the coating body is strip-shaped;

[0028] Figure 3 is a schematic diagram of a three-dimensional structure of a support member having a triangular cross section;

[0029] Figure 4 is a schematic diagram of a three-dimensional structure of a support member with an irregular cross section;

[0030] Figure 5 It is a schematic diagram of a three-dimensional structure of a support member having a relatively arc-shaped cross-sectional diagram;

[0031] Figure 6 A support member provided with a stopper;

[0032] Figure 7 The utility model is a three-dimensional structural schematic diagram of a rope body having a plurality of combined vibration-reducing flags when the utility model is working.

[0033] In the figure: 1-rope body; 2-coating body; 21 connecting member; 3-support member; 31-groove. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] Embodiment 1:

[0036] A combined vibration-damping flag includes a wrapping body wrapping a rope body and a supporting member supporting the wrapping body, wherein the wrapping body is made of nylon. The wrapping body can be strip-shaped when not in use, and Velcro is provided at 2 / 6 and 5 / 6 of the wrapping body respectively, and the two Velcros can be connected to each other. When the connecting members are connected to each other, the wrapping body is a ring-shaped structure.

[0037] The cross-section of the support is triangular and the material is nylon. When the vibration-damping flag works in water, the sheath is an annular structure and the support is a through structure. The water flows through the support, and the support penetrates and fits the sheath. The support is arranged in the space formed by the rope body and the annular sheath.

[0038] When the vibration-damping flag is working in water, the rope body passes through the covering body and fits with the covering body.

[0039] When the vibration reduction flags are working in water, the rope body passes through a plurality of combined vibration reduction flags, and the distance between adjacent combined vibration reduction flags is less than the width of the supporting member.

[0040] Example 2

[0041] A combined vibration-damping flag includes a wrapping body wrapping a rope body and a supporting member supporting the wrapping body, wherein the wrapping body is made of nylon. The wrapping body can be in a strip shape when not in use, and Velcro is provided at both ends of the wrapping body, and the two Velcros can be connected to each other. When the connecting members are connected to each other, the wrapping body is a ring structure.

[0042] The cross-section of the support is trapezoidal and the material is plastic. When the vibration-damping flag works in water, the sheath is an annular structure and the support is a through structure. The water flows through the support, and the support penetrates and fits the sheath. The support is arranged in the space formed by the rope body and the annular sheath.

[0043] When the vibration-damping flag is working in water, the rope body passes through the covering body and fits with the covering body.

[0044] When the vibration reduction flags are working in water, the rope body passes through a plurality of combined vibration reduction flags, and the distance between adjacent combined vibration reduction flags is less than the width of the supporting member.

[0045] Example 3

[0046] A combined vibration-damping flag includes a wrapping body that wraps a rope body and a supporting member that supports the wrapping body. The wrapping body is made of nylon, and both ends of the wrapping body are acute angled. The wrapping body can be strip-shaped when not in use, and Velcro is provided at both ends of the wrapping body near the acute angles. The two Velcros can be connected to each other. When the connecting members are connected to each other, the wrapping body is a ring structure.

[0047] The cross-section of the support member has relative oblique lines and the included angle of the extended lines of the two oblique lines is an acute angle. When the vibration damping flag is working in water, the sheath is an annular structure, the support member is a plastic with a through structure, the water flows through the support member, and the support member penetrates and fits the sheath, and the support member is arranged in the space formed by the rope body and the annular sheath.

[0048] When the vibration-damping flag is working in water, the rope body passes through the covering body and fits with the covering body.

[0049] When the vibration reduction flags are working in water, the rope body passes through a plurality of combined vibration reduction flags, and the distance between adjacent combined vibration reduction flags is less than the width of the supporting member.

[0050] Example 4

[0051] A combined vibration-damping flag includes a wrapping body that wraps a rope body and a supporting member that supports the wrapping body. The wrapping body is made of nylon, and both ends of the wrapping body are acute angled. The wrapping body can be strip-shaped when not in use, and Velcro is provided at both ends of the wrapping body near the acute angles. The two Velcros can be connected to each other. When the connecting members are connected to each other, the wrapping body is a ring structure.

[0052] The cross-section of the support member has a relative arc shape. When the vibration-damping flag is working in water, the sheathing body is an annular structure, the support member is a nylon through-structure, the water flows through the support member, and the support member penetrates and fits the sheathing body. The support member is arranged in the space formed by the rope body and the annular sheathing body.

[0053] When the vibration-damping flag is working in water, the rope body passes through the covering body and fits with the covering body.

[0054] The support member is symmetrically provided with stoppers each having a groove.

[0055] When the vibration reduction flags are working in water, the rope body passes through a plurality of combined vibration reduction flags, and the distance between adjacent combined vibration reduction flags is less than the width of the supporting member.

[0056] The working principle and use process of this utility model:

[0057] The utility model utilizes a covering member made of soft material to be connected to each other through a connecting member provided by the covering member to form an annular structure. The rope body passes through the covering member and fits the covering member. The supporting member is in the space formed by the rope body and the annular covering member, and the supporting member supports the covering member to maintain the annular structure. The annular structure will not be deformed due to water pressure, water flow or waves when the covering member is underwater, thereby reducing the resistance of the water flow at the covering member. In addition, the supporting member is a through structure, and the water flow passes through the through portion, which also reduces the resistance of the water flow.

[0058] When the vibration reduction flag is not used, a rod is used to pass through the support member, and force is applied to the rod member to move the support member toward the Velcro connection. The Velcro is opened under the action of the support member, and the support member is also separated from the covering member.

[0059] When the vibration reduction flag is not used, the rod body can also be used to press against the groove portion on the support member to separate the support member from the covering member.

[0060] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined vibration reduction flag, characterized in that: It includes a covering body wrapping the rope body and a supporting member supporting the covering body; When the vibration-damping flag is working in water, the sheathing body is an annular structure, the supporting member is a through structure, water flows through the supporting member, and the supporting member penetrates and fits the sheathing body, and the supporting member is arranged in the space formed by the rope body and the annular sheathing body.

2. A combined vibration damping flag according to claim 1, characterized in that: When the vibration-damping flag is working in water, the rope body passes through the covering body and fits with the covering body.

3. A combined vibration damping flag according to claim 2, characterized in that: Connectors are provided at two positions of the encapsulating body, and the connectors are connected to each other.

4. A combined vibration damping flag according to claim 1, characterized in that: Both ends of the coating body are acute angled.

5. A combined vibration damping flag according to claim 4, characterized in that: Velcro is provided at both ends of the covering body and at positions close to the angles.

6. A combined vibration damping flag according to any one of claims 1 to 5, characterized in that: The figure of the cross section of the support member has opposite oblique lines and the inner angle of the extension lines of the two oblique lines is an acute angle.

7. A combined vibration damping flag according to any one of claims 1 to 5, characterized in that: The cross-section of the support member has a relatively arc shape.

8. A combined vibration damping flag according to any one of claims 1 to 5, characterized in that: The cross section of the support member is conical, triangular or trapezoidal.

9. A combined vibration damping flag according to claim 1, characterized in that: When the vibration-reducing flag is working in water, the rope body is penetrated by a plurality of combined vibration-reducing flags, and the distance between adjacent combined vibration-reducing flags is smaller than the width of the supporting member.

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