Connecting device of deep sea pipe cable buoyancy block

Abstract

The utility model relates to a connecting device of a deep sea pipe cable buoyancy block, which comprises a plurality of clamp bodies, a bolt assembly and a plurality of outer hoops, an annular cylinder is formed among the plurality of clamp bodies, two ends of each clamp body are provided with clamping grooves, the side wall of the outer side of each clamping groove is provided with a plurality of transverse grooves which are opposite in position, and the outer hoops are arranged in the transverse grooves. The outer hoops are attached to the outer side wall of the clamp body, the two ends of each outer hoop are each provided with a connecting face attached to the inner side wall of the side, close to the outer side, of the corresponding clamping groove, the connecting faces are provided with connecting holes opposite to the transverse grooves in position, and every two adjacent outer hoops are fixedly connected through a bolt assembly. According to the utility model, the installed and fastened bolt can be in contact with the steel plate without directly extruding the nylon part, so that the structural stress is better.

Description

Technical Field

[0001] The utility model relates to the technical field of submarine cables, in particular to a connecting device for a deep-sea cable buoyancy block. Background Art

[0002] With the development of deep-sea resources worldwide, various deep-sea floating structures have been used on a large scale, and a large number of pipes and cables need to be connected between deep-sea equipment and water platforms. Since the floating structure and the fixed section of the seabed need to adapt to the rise and fall and overcome the wave and current effects, dynamic flexible pipes and cables are generally used for connection. At the site of deep-water dynamic flexible pipe and cable connection, a buoyancy module with an integral structure is generally used. The buoyancy material is made into two half-tiles and fixed with fastening bolts at the position where the flexible pipe and cable need buoyancy. With this type of installation method, there is no contact between the floating block and the outer wall of the pipe and cable, so it is necessary to rely on a strong clamp for fixing, so that the floating block structure is stuck in the clamp, and there will be no movement to cause buoyancy changes. Generally, the clamp is made of nylon and is tightened to the outside of the pipe and cable by bolts and slips. Since the floating block is wrapped outside, the bolt must be very short, otherwise the bolt will be against the external floating block and cannot be installed. The installation position accuracy also needs to be strictly controlled during on-site installation. Therefore, the installation requirements for the clamp are very high, otherwise the nylon is easily damaged during clamping, and it is also easy to cause the clamp to fail to be clamped stably for a long time. Utility Model Content

[0003] The utility model aims to provide a connection device for a deep-sea cable buoyancy block, which can make the bolts for installation and tightening contact with the steel plate without directly squeezing the nylon part, so that the structure can bear better stress.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a connection device for a deep-sea cable buoyancy block, comprising a plurality of clamping bodies, a bolt assembly and a plurality of outer clamps, wherein the plurality of clamping bodies form an annular column, both ends of the clamping bodies are provided with clamping grooves, a plurality of transverse grooves in opposite positions are provided on the side wall on the outer side of the clamping groove, the outer clamp is fitted with the outer side wall of the clamping body, both ends of the outer clamp are provided with connecting surfaces fitted with the inner side wall on the outer side of the clamping groove, the connecting surfaces are provided with connecting holes opposite to the positions of the transverse grooves, and the adjacent outer clamps are fixedly connected by bolt assemblies.

[0005] Furthermore, the outer surface of the card body is provided with a sunken platform-shaped connecting groove which fits with the outer clamp.

[0006] Furthermore, the number of the outer clamps is the same as the number of the clamps.

[0007] Furthermore, the bolt assembly includes bolts and nuts, and the bolts pass through the connecting holes and transverse grooves to fix the adjacent outer clamps.

[0008] Furthermore, the shape of the outer hoop is a capital omega shape.

[0009] Furthermore, the transverse groove is a U-shaped groove, and the bottom of the transverse groove fits the bolt.

[0010] Furthermore, long grooves are formed in the side walls on the inner sides of the clamps, and anti-slip clamping pads are fixed in the long grooves.

[0011] Furthermore, the anti-slip clamping pads are adhesively connected or press-fitted in the long grooves.

[0012] The beneficial effects of the present utility model are as follows: By using an outer hoop made of a stainless steel plate with a certain thickness outside the split nylon clamps, the bolts for installation and fastening contact the steel plate instead of directly squeezing the nylon part, resulting in better structural stress, avoiding the failure of the nylon due to extrusion or creep during long-term use, which may cause the fastening failure of the connecting device and axial movement. At the same time, through the arrangement of multiple anti-slip clamping pads, uniform contact and clamping in the circumferential direction of the pipe cable are ensured, with good fixing and anti-slip effects, fast installation and construction, and stable and reliable long-term use. Description of the Drawings

[0013] Figure 1 is a schematic structural view of the present utility model;

[0014] Figure 2 is a schematic structural view of the clamps of the present utility model;

[0015] Figure 3 is a rear view of the clamps of the present utility model;

[0016] Figure 4 is a schematic structural view of the outer hoop of the present utility model;

[0017] Figure 5 is a schematic structural view of the anti-slip clamping pads of the present utility model.

[0018] Wherein 1, anti-slip clamping pads; 2, clamps; 3, outer hoop; 4, bolt assembly, 41, bolt, 42, nut, 5, clamping groove, 6, transverse groove, 7, connection surface, 8, counterbore connection groove, 9, connection hole. Detailed Embodiments

[0019] The present utility model will be further described below with reference to the drawings. For better understanding, the orientation of the present utility model is described according to the orientation shown in the drawings, and it should not be construed as a limitation to the present application; the following terms "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying relative importance.

[0020] Please refer to Figures 1 to 5, the present utility model provides an embodiment: a connecting device for deep - sea pipe - cable buoyancy blocks, which includes multiple clamping bodies 2, bolt assemblies 4 and multiple outer hoops 3. The multiple clamping bodies 2 form an annular cylinder. Both ends of the clamping body 2 are provided with clamping grooves 5. Multiple transverse grooves 6 are arranged on the side wall of the outer side of the clamping groove 5 at opposite positions. The outer hoop 3 fits with the outer side wall of the clamping body 2. Both ends of the outer hoop 3 are provided with connecting surfaces 7 that fit with the inner side wall of the outer side of the clamping groove 5. The connecting surface 7 is provided with connecting holes 9 at positions opposite to the transverse grooves 6. Adjacent outer hoops 3 are fixedly connected through bolt assemblies 4. The multiple nylon clamping bodies 2 can wrap the deep - sea pipe - cable. By using an outer hoop 3 made of stainless steel plate with a certain thickness outside the multiple nylon clamping bodies 2, the transverse grooves 6 opened at both ends of the nylon clamping body 2 can be used to place the bolt assemblies 4 and can also enable the installed and tightened bolt assemblies 4 to contact the steel plate without directly squeezing the nylon part. The structure is more stress - resistant, avoiding the failure of the nylon due to extrusion or the loosening failure of the connecting device caused by creep during long - term use, thus preventing axial movement.

[0021] Please continue to refer to Figure 1 , Figure 3 As shown in, in an embodiment of the present utility model, a sunk - type connecting groove 8 that fits with the outer hoop 3 is opened on the outer surface of the clamping body 2. The sunk - type connecting groove 8 is a structure where the overall outer arc surface sinks a certain depth, meeting the requirement that the outer hoop 3 fits tightly against the outer contour without protruding beyond the outer edge.

[0022] Please continue to refer to Figure 1 As shown in, in an embodiment of the present utility model, the number of the outer hoops 3 is the same as that of the clamping bodies 2. Each outer hoop 3 corresponds to the position of the clamping body 2.

[0023] Please continue to refer to Figure 1 As shown in, in an embodiment of the present utility model, the bolt assembly 4 includes a bolt 41 and a nut 42. The bolt 41 passes through the connecting hole 9 and the transverse groove 6 to fix the adjacent outer hoops 3. By passing the bolt 41 through the connecting hole 9 on the connecting surfaces 7 of adjacent sides and through the transverse groove 6, the outer hoop 3 and the clamping body 2 it fits with are connected. The bolt 41 is hidden inside the clamping body 2, and at the same time, the adjacent outer hoops 3 can be fixed, making the overall outside of the nylon clamping body 2 tightened. The bolt 41, nut 42, etc. of the bolt assembly 4 are all made of stainless steel material, which can be in the form of external hexagon or internal hexagon. The specific dimensions are selected according to the standard specifications of the designed length, or a steel bolt 41 with a Teflon coating can also be used.

[0024] Please continue to refer to Figure 4As shown, in an embodiment of the present utility model, the shape of the outer hoop 3 is a U-shaped. The U-shaped can fit the stepped connection groove 8 and the clamping groove 5 outside the nylon clamping body 2. The connection surface 7 of the outer hoop 3 is used to install the bolt assembly 4 to clamp and fasten the clamping body 2.

[0025] Please continue to refer to Figure 2 、 Figure 3 As shown, in an embodiment of the present utility model, the transverse groove 6 is a U-shaped groove, and the bottom of the transverse groove 6 coincides with the bolt 41. The transverse groove 6 can provide space for the movement of the bolt assembly 4 when the bolt assembly 4 is locked and fixed, ensuring that the bolt assembly 4 has sufficient locking force on the outer hoop 3 and the clamping body 2. The bottom of the U-shaped groove can fit with the bolt 41 to ensure that the bolt 41 will not move up and down.

[0026] Please continue to refer to Figures 1 to 5 As shown, in an embodiment of the present utility model, long grooves are formed on the inner side walls of the clamping body 2, and anti-slip clamping pads 1 are fixed in the long grooves. The anti-slip clamping pads 1 are block bodies with a certain thickness and a long hole shape cut from a rubber plate resistant to seawater corrosion. The surface in contact with the pipe cable is roughened to increase the frictional resistance. The anti-slip clamping pads 1 are fixed on the inner side walls of the clamping body 2. When the three parts of the clamping body 2 are combined into a ring and sleeved outside the pipe cable for connection and fixation, the bolt 41 is used to make the clamping body 2 tightly hold the inner pipe cable. At this time, the anti-slip clamping pads 1 are extruded, so that the anti-slip clamping pads 1 are compressed and tightly attached to the outer wall of the pipe cable, and the fixed connection device will not axially move.

[0027] Please continue to refer to Figures 1 to 5 As shown, in an embodiment of the present utility model, the anti-slip clamping pads 1 are adhesively connected or press-fitted with the long grooves. The anti-slip clamping pads 1 are integrally embedded in the long grooves of the clamping body 2 and will not come out of the grooves through adhesive connection or press-fitting.

[0028] The working principle of the utility model is as follows: Determine the fastening force and connection length of the connecting device according to the pipe and cable specifications that require the installation of buoyancy blocks and the dynamic fatigue requirements of hydrodynamic analysis in the area, complete the structural design of the device, and determine the sizes and specifications of the anti-slip card pads, card bodies, outer hoops, and bolt groups. Cut and process the anti-slip card pads with a rubber plate of a certain thickness, machine a nylon ring, then process the outer contour and the long groove on the inner arc surface by a machining center, and then cut it into three card bodies. Cut a stainless steel plate with a certain length and width and holes at both ends according to the outer contour size of the card body, and then bend it into a U-shaped hoop that fits the outer contour of the card body. After completing the inspection of the parts, transport them to the construction site. Embed the anti-slip card pads into the long grooves on the inner arc surface of the card body, with the roughened surface protruding inward from the inner arc surface of the card body. Use an auxiliary adhesive to temporarily fix the outer hoop on the outside of the card body. Then temporarily fix the pipe and cable that needs to install the connecting device, buckle the card body with the outer hoop and anti-slip card pads on the outside of the pipe and cable, install the bolt assembly from the connection holes on the connection surface of the outer hoop into the connection holes of the adjacent outer hoop, and install several groups of card bodies in the same way to form a ring that sleeves on the outside of the pipe and cable. Adjust the position of each piece and tighten the bolt assembly. Through the pre-tightening of the bolts, the outer hoop presses the card body to tightly hold the internal pipe and cable. At this time, the anti-slip card pads are squeezed on the outside of the pipe and cable, and the rubber plate is compressed and tightly attached to the outer wall of the pipe and cable, so that the connecting device is well fixed and will not move axially. After completing the installation of the connecting device, a cylindrical boss is formed at the position where the floating material needs to be installed on the pipe and cable, which is beneficial to the installation of the subsequent floating materials and ensures stable fixation on the pipe and cable.

[0029] The above are only the preferred embodiments of the utility model, and should not be construed as limitations to this application. Any equivalent changes and modifications made according to the scope of the patent application of the utility model shall fall within the scope covered by the utility model.

Claims

1. A connecting device for a buoyancy block of a deep-sea pipeline cable, characterized in that: It includes multiple card bodies, bolt assemblies, and multiple external clamps. The multiple card bodies form an annular cylinder. Both ends of the card body are provided with card slots. Multiple transverse slots are provided on the side wall of the outer side of the card slot. The external clamp fits against the outer side wall of the card body. Both ends of the external clamp are provided with connection surfaces that fit against the inner side wall of the outer side of the card slot. The connection surface is provided with connection holes that are opposite to the positions of the transverse slots. Adjacent external clamps are fixedly connected through bolt assemblies.

2. The connecting device of a deep-sea pipeline cable buoyancy block according to claim 1, wherein: A counterbore-shaped connection groove that fits against the external clamp is provided on the outer surface of the card body.

3. The connecting device of a deep-sea pipeline cable buoyancy block according to claim 1, characterized in that: The number of the external clamps is the same as that of the card bodies.

4. The connecting device of a deep - sea pipeline cable buoyancy block according to claim 1, characterized in that: The bolt assembly includes a bolt and a nut. The bolt passes through the connection hole and the transverse slot to fix the adjacent external clamps.

5. The connecting device of a deep-sea pipeline cable buoyancy block according to claim 1, characterized in that: The external clamp is in a shape of a capital "J".

6. The connecting device of a deep-sea pipeline cable buoyancy block according to claim 4, characterized in that: The transverse slot is a U-shaped groove, and the bottom of the transverse slot is in line with the bolt.

7. The connecting device of a deep-sea pipeline cable buoyancy block according to claim 1, characterized in that: Long slots are provided on the inner side walls of the card body, and anti-slip card pads are fixed in the long slots.

8. The connecting device of a deep-sea pipeline cable buoyancy block according to claim 7, characterized in that: The anti-slip card pads are adhesively connected or press-fitted into the long slots.

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