Adjustable bridging cable connecting device between floating bodies and working method of adjustable bridging cable connecting device

Abstract

The invention discloses an adjustable jumper cable connecting device between ocean floating bodies. The adjustable jumper cable connecting device is characterized by comprising a fixing groove, a supporting column, a limiting table, a spring and a shell, the working method comprises the following steps of: respectively installing the adjustable jumper cable connecting device between the ocean floating bodies on the ocean floating bodies at certain intervals; according to the requirement of the cable erection height, the positions of the supporting columns and the limiting tables are adjusted and then fixed; when the two platforms float up and down and are not in the same horizontal line, the floating body upper support threaded column at the relatively high position moves downwards, the lower side spring is compressed, the floating body upper support threaded column at the relatively low position moves upwards, and the upper side spring is compressed, so that the fluctuation state of the cable is reduced. When the two platforms rotate left and right, the supporting columns rotate to reduce the torsion degree of the cable. The cable support has the advantages of being simple in mechanical structure, small in size, flexible to install, convenient to operate and the like, meanwhile, the cable support can achieve the damping function when the cable moves violently under the action of external force, and the service life of the cable is prolonged.

Description

(I) Technical field:

[0001] The invention belongs to the technical field of cable equipment, and in particular to an adjustable marine floating body jumper cable connection device and a working method thereof, which are applied in an offshore floating photovoltaic system. (II) Background technology:

[0002] With the growth of energy demand and the pursuit of renewable energy, offshore floating photovoltaic power generation has attracted more and more attention due to its stable energy and large scale. The difference between offshore photovoltaic and traditional photovoltaic is that all photovoltaic modules, inverters and other power station facilities are fixed on the floating platform through an anchoring system. As one of the core components of the offshore floating photovoltaic power generation system, the inter-floating jumper cable plays an indispensable role in the offshore floating photovoltaic power generation, realizing the power transmission between the floating bodies, so that the photovoltaic power generation systems between multiple floating bodies can be connected to the network, thereby improving the power generation efficiency of the entire system. When the offshore power generation system is operating normally, there is relative motion between the floating bodies, and the jumper cables need to withstand more severe marine environmental loads. Therefore, the laying of inter-floating jumper cables in the marine environment must respond dynamically. In the offshore floating power generation system, the jumper section from one floating body to another is a jumper section, and the cable activity state is very complex. In order to avoid the cable being in a serious twisted state and extend the service life of the cable, it is necessary to consider that the cable connection devices on each floating body are very flexible. The flexibility of the jumper cable connection device between offshore platforms is an important factor in extending the cable life and should be considered as the top priority. (III) Summary of the invention:

[0003] The purpose of the present invention is to provide an adjustable jumper cable connection device between marine buoys and a working method thereof, which overcomes the shortcomings of the prior art and utilizes the flexible rotation of the fixing groove and the spring deformation to reduce the degree of torsion and pulling of the cable line. The cable bracket is small in size and easy to install and fix.

[0004] The technical solution of the present invention is as follows: an adjustable jumper cable connection device between marine floating bodies, characterized in that it includes a fixing groove, a support column, a limit platform, a spring and a shell; wherein the limit platform is fixedly connected to the support column after adjusting the position, and the end of the support column is connected to the fixing groove for fixing the cable; springs are respectively sleeved on the support columns on both sides of the limit platform; the support column is inserted into the middle of the shell, and the cover of the shell is provided with a hole for inserting the support column, and there is a gap between the support column and the hole; the limit platform and the spring are wrapped in the shell, and there is a gap between the limit platform and the inner wall of the shell; the spring is placed between the limit platform and the cover of the shell; and the shell is fixedly mounted on the truss of the marine floating body.

[0005] The fixing slot is rotatable.

[0006] The support column is inserted into the shell and can move up and down when subjected to external force on the cable; when the support column moves up and down, the spring placed between the limit platform and the cover of the shell is squeezed and deformed, thereby realizing the shock-absorbing function when the cable moves under the action of external force.

[0007] The length of the support column is more than 1.5 times the length of the shell, and the adjustable length does not exceed 5 cm.

[0008] The housing is divided into two parts which are connected to each other via a connecting cover in the middle.

[0009] The support column is a threaded column, and the limit platform is a round table with threads; the limit platform is adjusted and connected with the threaded column through the threads.

[0010] The shell is cylindrical, and both ends are connected to cylindrical covers; the threaded column passes through the cylindrical cover, the spring, the frustum, the spring and the cylindrical cover in sequence.

[0011] The fixing groove is an openable and closable structure.

[0012] The fixing groove is composed of an upper fixing groove and a lower fixing groove; one end of the upper fixing groove and the lower fixing groove are axially connected, and the other end is a lock structure that can be locked or opened.

[0013] One end of the upper fixing groove and the lower fixing groove are axially connected by a bolt, and the other end of the upper fixing groove is equipped with a screw. A hole matching the screw is drilled on the other end of the lower fixing groove, and a thread matching the screw is arranged in the small hole. The other end of the upper fixing groove and the lower fixing groove are locked or opened by a screw.

[0014] The fixing slot can be opened or closed by manual operation, that is, unscrewing the screw to open the fixing slot and loosen the cable, and screwing in the screw to close the fixing slot and clamp the cable; the purpose is to adjust the length of the cable according to the application scenario and improve the application flexibility.

[0015] A working method of the above-mentioned adjustable jumper cable connection device between marine floating bodies is characterized in that it comprises the following steps:

[0016] (1) installing adjustable inter-marine floating body jumper cable connection devices on marine floating bodies separated by a certain distance;

[0017] (2) According to the requirements of cable installation height, adjust the position of the support column and the limit platform and then fix them;

[0018] (3) The fixed groove clamps the cable. When the two platforms float up and down and are not on the same horizontal line, the threaded column of the bracket on the relatively high floating body moves downward, the lower spring is compressed, and the threaded column of the bracket on the relatively low floating body moves upward, the upper spring is compressed, so as to reduce the fluctuation state of the cable;

[0019] (4) When the two platforms rotate left and right, the support column reduces the degree of cable twisting by rotating.

[0020] The advantages of the present invention are as follows: (1) the fixing groove can be opened and closed manually to loosen and clamp the cable, which makes it convenient to adjust the length of the cable at any time according to the application scenario, thereby improving the flexibility of application; (2) the fixing groove can be rotated left and right to adjust the direction, thereby adjusting the direction of the cable, reducing the degree of torsion of the cable, and extending the service life of the cable; (3) the spring can be freely extended and retracted, and the spring provides a buffering force to the cable through deformation, thereby achieving a shock absorbing effect and extending the service life of the cable; (4) the cable bracket design has the advantages of simple mechanical structure, small size, flexible installation and convenient operation. At the same time, the cable bracket can realize the shock absorbing function when the cable is subjected to external force and moves violently, thereby extending the service life of the cable. (IV) Description of the drawings:

[0021] Figure 1 It is a structural schematic diagram of an adjustable inter-floating body jumper cable connection device involved in the present invention.

[0022] Figure 2 The invention is a schematic diagram of a threaded column, a truncated cone and a spring structure inside a cylindrical shell of an adjustable inter-floating body jumper cable connection device.

[0023] Figure 3 It is a model schematic diagram of the application of an adjustable inter-floating jumper cable connection device involved in the present invention to an actual scenario.

[0024] Figure 4 It is a schematic diagram of the upper side of a fixing groove of an adjustable inter-floating body jumper cable connection device involved in the present invention.

[0025] Figure 5 It is a schematic diagram of the lower side of a fixing groove of an adjustable inter-floating body jumper cable connection device involved in the present invention.

[0026] Figure 6 The present invention is a schematic diagram of bolts used for fixing slot assemblies of an adjustable inter-floating body jumper cable connection device.

[0027] Figure 7 The present invention is a schematic diagram of the parts of a fixing groove assembly of an adjustable inter-floating body jumper cable connection device.

[0028] Figure 8 The present invention is a schematic structural diagram of an upper cylindrical barrel of a cylindrical shell of an adjustable inter-floating body jumper cable connection device.

[0029] Fig. 9The present invention is a schematic structural diagram of a lower cylindrical barrel of a cylindrical shell of an adjustable inter-floating body jumper cable connection device.

[0030] Fig.10 The present invention is a schematic diagram of a top cylindrical cover structure of a cylindrical shell of an adjustable inter-floating body jumper cable connection device.

[0031] Fig.11 The present invention is a schematic diagram of a connection cover structure in the middle part of a cylindrical shell of an adjustable inter-floating body jumper cable connection device.

[0032] Fig.12 The present invention is a schematic diagram of a bottom cylindrical cover structure of a cylindrical shell of an adjustable inter-floating body jumper cable connection device.

[0033] In the figure, 1 is a fixing groove, 2 is a threaded column, 3 is a cylindrical shell, 4 is a spring, 5 is a frustum, 6 is an upper fixing groove, 7 is a lower fixing groove, 8 is a bolt, 9 is a screw, 10 is a cylindrical cover on the top of the cylindrical shell, 11 is an upper cylindrical barrel of the cylindrical shell, 12 is a connecting cover in the middle of the cylindrical shell, 13 is a lower cylindrical barrel of the cylindrical shell, 14 is a cylindrical cover on the bottom of the cylindrical shell, 15 and 16 are two cable brackets, and 17 is a cable. (V) Specific implementation methods:

[0034] The following is a detailed description of the implementation methods of this patent in conjunction with the accompanying drawings.

[0035] As shown in the figure, an adjustable jumper cable connection device between marine buoys includes a fixing groove 1, a threaded column 2, a truncated cone 5, a spring 4 and a cylindrical shell 3; the truncated cone 5 is fixedly connected with the threaded column 2 after adjusting the position, and the end of the threaded column 2 is connected to the fixing groove 1 for fixing the cable; the threaded columns 2 on both sides of the truncated cone 5 are respectively sleeved with springs 4; the threaded column 2 is inserted into the cylindrical shell 3, and the cover of the cylindrical shell 3 is provided with a hole for inserting the threaded column 2, and there is a gap between the threaded column 2 and the hole; the truncated cone 5 and the spring 4 are wrapped in the cylindrical shell 3, and there is a gap between the truncated cone 5 and the inner wall of the cylindrical shell 3; the spring 4 is placed between the truncated cone 5 and the cover of the cylindrical shell 3; the cylindrical shell 3 is fixedly installed on the truss of the marine buoy.

[0036] The fixing groove 1 clamps the cable 17, and the threaded column 2 moves up and down with the truncated cone 5 due to the external force on the cable 17. The truncated cone 5 and the cylindrical shell 3 squeeze the spring 4 due to the up and down movement of the threaded column, and the spring 4 is deformed due to the squeezing of the truncated cone and the cylindrical shell, thereby realizing the shock-absorbing function when the cable moves violently due to the external force.

[0037] like Figure 1As shown, the upper end of the threaded column 2 is connected to the fixing groove 1, and the threaded column 2 and the fixing groove 1 can rotate left and right relative to each other; the cylindrical housing 3 is sleeved on the outside of the threaded column 2 and completely covers the spring 4 and the frustum 5.

[0038] like Figure 1 As shown, one side of the fixing groove 1 is fixed with a bolt 8 to the upper fixing groove 6 and the lower fixing groove 7; the other side of the upper fixing groove 6 is provided with a screw 9, and the other side of the lower fixing groove 7 is drilled with a hole matching the screw; in actual application, the screw 9 is manually unscrewed, the fixing groove 1 is opened, the cable 17 is clamped, and then the screw 9 is screwed on to close the fixing groove 1, as shown in FIG. Figure 1 , Figure 3 shown.

[0039] The spring 4, the round table 5 and the spring 4 are sequentially inserted on the outside of the threaded column 2 from top to bottom, as shown in FIG. Figure 2 The truncated cone 5 is fixed on the threaded column 2 and moves along with the threaded column 2; the spring 4 is sleeved on the outside of the threaded column 2 and can move freely on the threaded column 2.

[0040] The cylindrical housing 3 includes an upper cylindrical barrel 11, a lower cylindrical barrel 13, a top cylindrical cover 10, a connecting cover 12, and a bottom cylindrical cover 14. Figure 8 , Fig. 9 As shown, the height of the upper cylindrical barrel 11 should be greater than the length of the two springs 4 in the free state plus the thickness of the cone 5; the height of the lower cylindrical barrel 13 should not be less than 0.5 times the length of the threaded column 2; and the diameter of the cylindrical shell 3 should be greater than the diameter of the cone 5.

[0041] like Figure 1 , Fig.10 and Fig.11 As shown, there is a circular hole in the middle of the top cylindrical cover 10 and the connecting cover 12, and the diameter of the circular hole is larger than the diameter of the threaded column 2; the top cylindrical cover 10 is connected to the upper end of the upper cylindrical barrel 11; one end of the connecting cover 12 is connected to the lower end of the upper cylindrical barrel 11, and the other end is connected to the upper end of the lower cylindrical barrel 13, fixing the upper cylindrical barrel 11 and the lower cylindrical barrel 13 together; the top cylindrical cover 10 and the connecting cover 12 are not fixedly connected to the threaded column 2, and can move freely relative to the threaded column 2.

[0042] like Fig.12 , Figure 3 As shown, the bottom cylindrical cover 14 is fixed to the lower end of the cylindrical barrel 13, and a mounting hole is drilled on the outer side thereof. The cable connecting devices 15 and 16 are fixed to the truss of the marine floating body by screws at the mounting holes.

[0043] The working method of this embodiment is as follows: the two cable connecting devices 15 and 16 are respectively fixed to the trusses of the ocean buoys at a certain distance apart, and the cable line 17 is clamped by the fixing groove 1; the two photovoltaic platforms are in a relative motion state due to the influence of waves, wind, etc., causing the two cable supports 15 and 16 to also be in a relative motion state. When the movement amplitude of the two cable supports 15 and 16 is large, the cable line 17 will be pulled, which will cause damage to the cable line 17. When the two cable connecting devices 15 and 16 move up and down with a large amplitude, the cable line 17 pulls the relatively high cable connecting device downward, the cylindrical shell 3 is fixed to the marine buoy and is not affected by the tension, the threaded column 2 is acted upon by the tension and moves the truncated table 5 downward, the spring 4 on the lower side of the truncated table 5 is squeezed and shortened by the truncated table 5 and the cylindrical cover 12, and at the same time, the cable line 17 pulls the relatively low cable connecting device upward, the threaded column 2 is acted upon by the tension and moves the truncated table 5 upward, the spring 4 on the upper side of the truncated table 5 is squeezed and shortened by the truncated table 5 and the cylindrical cover 10, thereby reducing the pulling degree of the cable line 17; when the two cable connecting devices 15 and 16 move horizontally with a large amplitude, the fixing groove 1 can be rotated left and right to adjust the direction, thereby reducing the twisting degree of the cable line 17.

[0044] The cable connection device generates extrusion through the mutual movement between the threaded column 2, the truncated cone 5, the spring 4 and the cylindrical shell 3, causing the spring to deform due to the extrusion, and the flexible rotation of the fixing groove 1, thereby comprehensively realizing the shock-absorbing function when the cable is subjected to external force and violently moves.

[0045] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will appreciate that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. An adjustable jumper cable connection device between marine buoys, characterized in that It includes a fixing groove, a supporting column, a limiting platform, a spring and a shell; wherein the limiting platform is fixedly connected to the supporting column after adjusting the position, and the end of the supporting column is connected to the fixing groove for fixing the cable; springs are respectively sleeved on the supporting columns on both sides of the limiting platform; the supporting column is inserted in the middle of the shell, and a hole for inserting the supporting column is provided on the cover of the shell, and there is a gap between the supporting column and the hole; the limiting platform and the spring are wrapped in the shell, and there is a gap between the limiting platform and the inner wall of the shell; the spring is placed between the limiting platform and the cover of the shell; and the shell is fixedly installed on the truss of the marine floating body.

2. According to claim 1, an adjustable jumper cable connection device between marine buoys is characterized in that The fixing slot is rotatable.

3. The adjustable jumper cable connection device between marine buoys according to claim 1, characterized in that The support column is inserted into the shell and can move up and down when subjected to external force on the cable; when the support column moves up and down, the spring placed between the limit platform and the cover of the shell is squeezed and deformed, thereby realizing the shock-absorbing function when the cable moves under the action of external force.

4. The adjustable jumper cable connection device between marine buoys according to claim 1, characterized in that The length of the support column is more than 1.5 times the length of the shell, and the adjustable length does not exceed 5 cm.

5. The adjustable jumper cable connection device between marine buoys according to claim 1, characterized in that The housing is divided into two parts which are connected to each other via a connecting cover in the middle.

6. The adjustable jumper cable connection device between marine buoys according to claim 1, characterized in that The support column is a threaded column, and the limit platform is a round table with threads; the limit platform is adjusted and connected with the threaded column through the threads.

7. The adjustable jumper cable connection device between marine buoys according to claim 1, characterized in that The shell is cylindrical, and both ends are connected to cylindrical covers; the threaded column passes through the cylindrical cover, the spring, the frustum, the spring and the cylindrical cover in sequence.

8. The adjustable jumper cable connection device between marine buoys according to claim 1, characterized in that The fixing groove is an openable and closable structure.

9. The adjustable jumper cable connection device between marine buoys according to claim 1, characterized in that The fixing groove is composed of an upper fixing groove and a lower fixing groove; one end of the upper fixing groove and the lower fixing groove are axially connected, and the other end is a lock structure that can be locked or opened.

10. A method for operating the adjustable marine floating body jumper cable connection device according to claim 1, characterized in that It includes the following steps: (1) installing adjustable inter-marine floating body jumper cable connection devices on marine floating bodies separated by a certain distance; (2) According to the requirements of cable installation height, adjust the position of the support column and the limit platform and then fix them; (3) The fixed groove clamps the cable. When the two platforms float up and down and are not on the same horizontal line, the threaded column of the bracket on the relatively high floating body moves downward, the lower spring is compressed, and the threaded column of the bracket on the relatively low floating body moves upward, the upper spring is compressed, so as to reduce the fluctuation state of the cable; (4) When the two platforms rotate left and right, the support column reduces the degree of cable twisting by rotating.

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