An outboard repeater transmission device and its usage method

Abstract

This invention relates to the field of cable-laying vessel equipment technology, and discloses an outboard repeater transmission device and its usage method. The device includes a transmission component, a support component, a fixing component, and a hoisting device. The transmission component includes a transmission channel, a fixing brace, a protective rod, and a connecting block. The transmission channel includes square tubes, rollers, lifting lugs, baffles, handles, and pedals. The square tubes form the main frame structure. Square tubes I and II form the central crew walking channel and the component transmission channels on both sides. Square tubes III, IV, V, and VI form a trumpet-shaped output port. Baffles are provided on both sides of the output port. Rollers are provided at the bottom and on both sides of the component transmission channel. Lifting lugs are provided on the square tube I at the bottom of the crew walking channel. The support component includes a diagonal brace. The diagonal brace and the square tube I at the bottom of the transmission channel have an inclination angle θ to avoid collision or damage between the repeater and the ship's side, and to ensure the transmission quality of the optical cable and the repeater.

Description

Technical Field

[0001] This invention relates to the field of cable-laying vessel equipment technology, specifically to an outboard repeater transmission device and its usage method. Background Technology

[0002] Currently, international maritime optical fiber communication systems are divided into two types: those with repeaters and those without. Systems with repeaters possess four main characteristics: better security, strong stability, high reliability, and strong anti-interference capability, making them widely used in maritime communication systems. Repeaters are crucial devices used to connect submarine optical cables, ensuring long-distance signal transmission; their function is similar to a signal amplifier. An optical cable is a communication cable assembly that uses one or more optical fibers encased in a sheath as the transmission medium and can be used individually or in groups to achieve optical signal transmission. In high-capacity, long-distance optical fiber communication systems, repeaters are required at intervals to ensure high-quality, long-distance optical fiber transmission. Repeaters are essential devices in long-distance maritime optical fiber communication systems for amplifying and transmitting optical signals and ensuring signal transmission quality. Currently, under certain operating conditions, cable-laying vessels directly transport repeaters into or out of the ship's hold after connecting them to the optical cable. If the signal is transmitted directly from the cabin to the outside of the ship, it is very easy for the repeater to collide with or break against the ship's side, affecting normal use. Replacing the repeater later is a complicated process and can cause property damage.

[0003] During cable-laying operations, the transmission of optical cables and repeaters overboard is challenging. Repeaters are heavy, sometimes weighing up to one ton and approximately four meters in length. Furthermore, the transmission of the optical cable must be completed within its radius of curvature. Because the repeater extends a considerable distance overboard, the lack of a transmission platform can cause it to collide with the ship's side, damaging internal components. Additionally, the inability of the repeater to bend can lead to cable breakage, impacting the cable-laying vessel's efficiency, extending the construction period, and increasing costs. Therefore, the successful deployment of repeaters largely determines the overall progress of the maritime communication optical cable operation.

[0004] CN115267999A discloses an installation platform device for laying optical cables, including an outer frame. The outer frame is formed by connecting an upper frame, a middle frame, and a lower frame from top to bottom. This outer frame cannot be used to transport repeaters connected to optical cables. If its platform components and support plates are removed and used to transport repeaters connected to optical cables, the optical cables and repeaters will be subjected to friction, and the transportation is not safe. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an outboard repeater transmission device and its method of use that avoids collision or damage between the repeater and the ship's side.

[0006] To solve the above technical problems, the present invention provides an outboard repeater transmission device, including a transmission component, a support component, a fixing component, and a hoisting device;

[0007] The conveying assembly includes a conveying channel, a fixed support, a protective rod, and a connecting block;

[0008] The conveying channel includes square tubes I, II, III, IV, V, and VI, rollers, lifting lugs, baffles, handles, and pedals; each square tube constitutes the main frame structure; square tubes I and II form the central crew walking passage and the component conveying channels on both sides; the crew walking passage and the component conveying channel share square tubes I and II on their inner sides; square tubes III, IV, V, and VI form a flared output port; a flared output port is provided at one end of the component conveying channel; the top of the output port... Two square tubes III open to the sides in a trumpet shape, with two square tubes IV at the bottom parallel to each other; one end of square tube III is installed on square tube II, and the other end is installed on the top surface of square tube VI; the end of square tube IV at the trumpet opening is installed on square tube V; one end of square tube IV is installed on the third fixed support, and the other end is installed on square tube V; both ends of square tube V are installed on the lower part of square tube VI; baffles are provided on both sides of the output port; one side of the baffle is fixed to square tube II, and the other side is fixed to square tube VI; rollers are provided at the bottom and on both sides of the component conveying channel;

[0009] The support assembly includes a diagonal brace; the left end of the diagonal brace is mounted on the second fixed plate in the base, and the right end is mounted on the third connecting block; the diagonal brace forms an inclination angle θ with the square tube I at the bottom of the conveying channel, and the resultant force on the diagonal brace in the horizontal and vertical directions is 0 when it is in operation, as calculated by the following formula:

[0010] F B cosθ-F DX =0

[0011] F B sinθ+F C +m2g-F DY =0

[0012] F C L1 cosθ+m2gL1 cosθ-M D =0

[0013] In the above formula, m2 is the weight of the diagonal brace, g is the acceleration due to gravity, θ is the inclination angle between the square tube I at the bottom of the conveyor channel and the diagonal brace, and F B F applies pressure to the diagonal bracing of the transmission component. C F provides diagonal bracing pressure to the rear support rod. DX Let F be the horizontal component of the force acting at point D. DYLet M be the vertical component of the force at point D, L1 be the distance from the rear support rod to the left end of the square tube I at the bottom of the conveyor channel, and M be the vertical component of the force. D This refers to the torque that the diagonal brace can withstand.

[0014] The main frame structure of the transmission channel for the transmission repeater and optical cable is composed of square tubes of different lengths. Rollers are installed on the main frame structure to reduce friction between the optical cable, repeater and transmission device. A flared end is provided at the rear of the main frame structure to facilitate the rapid passage of the repeater and optical cable. There is an inclination angle θ between the diagonal brace and the square tube I at the bottom of the transmission channel. The inclination angle makes the resultant force on the diagonal brace in the horizontal and vertical directions zero in the working state, which ensures the safety and reliability of the transmission process, guarantees the transmission quality of the optical cable and repeater, and improves the transmission efficiency.

[0015] Preferably, the fixing supports include a first fixing support, a second fixing support, a third fixing support, and a fourth fixing support; the first fixing support is located at the front of the square tube I at the bottom of the conveying channel, the second fixing support is located in the middle of the square tube I, the third fixing support is located at the tail of the square tube I, and the fourth fixing support is located on the bottom surface of the square tube V at the output port; the four fixing supports correspond to the fixing holes on the hull deck.

[0016] Preferably, two handles are installed on each of the two square tubes I at the top of the crew walking passage to ensure the personal safety of crew members when walking in the standing passage.

[0017] Preferably, protective bars are provided in the middle and rear of the component transmission channel. The middle protective bar is located between the two handles, and the rear protective bar is close to the output port to prevent the optical cable from jumping during transmission.

[0018] Preferably, the protective rod includes a stop bar, a stop bar handle, a short ear plate, and a long ear plate; the short ear plate and the long ear plate are each mounted on the square tube I on both sides of the top of the component conveying channel; the two ends of the stop bar are mounted on the long ear plate and the short ear plate by pins; the two ends of the stop bar are flat and mate with the upper end faces of the square tube I on both sides of the top of the conveying channel; the stop bar handle is mounted on the stop bar. An anti-cable-slip stop bar is designed at the top of the conveying device to avoid cable slippage that may occur during optical cable transmission. In addition, the stop bar adopts a rotating design, allowing for quick fixing in both horizontal and vertical directions by inserting and removing the pins, ensuring the reliability of the repeater transmission.

[0019] Preferably, the connecting blocks include a first connecting block, a second connecting block, and a third connecting block; the first connecting block is located at the front of the square tube I at the bottom of the conveying channel, and the second and third connecting blocks are located in the middle of the square tube I. In the working state, the three connecting blocks are connected to the support rod, rear support rod, and diagonal brace of the support assembly through pins, supporting the stable operation of the conveying device.

[0020] Preferably, the support assembly further includes a front support rod, a rear support rod, and a hinge; the upper end of the front support rod is connected to the first connecting block via a pin, and the lower end is connected to the first fixed plate in the base via a pin; the upper end of the rear support rod is connected to the second connecting block via a pin, and the lower end is connected to the middle of the diagonal brace via a pin; one side of the hinge is connected to the square tube I at the bottom of the conveying channel, and the other side is fixed to the diagonal brace; the left end of the diagonal brace is set in the insertion hole on the second fixed plate in the base, and the right end is connected to the third connecting block via a pin. This design facilitates folding and does not occupy hull space. Due to the long length of the repeater, the conveying device is relatively large. To ensure that the platform can be easily stored and fixed when not in use, this innovative structure enables rapid folding. This is mainly achieved by removing the pins of the front and rear support rods, as well as the four pins on the diagonal brace, which allows the diagonal brace to rotate and fold, thereby achieving the retraction of the device.

[0021] Preferably, the resultant force on the square tube I at the bottom of the conveying channel in the horizontal and vertical directions is 0 during operation, ensuring the transportation safety of the conveying device. The calculation formula is as follows:

[0022] F AX +F B cosθ=0

[0023] F AY +F B sinθ+F C -m1g=0

[0024] F C L1+F B L2 sinθ+M A -m1gL1=0

[0025] In the above formula, m1 is the weight of the conveying component and its load, g is the acceleration due to gravity, θ is the inclination angle between the square tube I at the bottom of the conveying channel and the diagonal brace, and F AX Let F be the horizontal component of the force acting at point A. AY Let F be the vertical component of the force acting at point A. B F provides support force to the transmission components for the diagonal bracing. C The rear support rod provides support force to the transmission assembly. L1 is the distance from the rear support rod to the left end of the square tube I, L2 is the distance from the rear support rod to the right end of the square tube I, and M... A The torque that the square tube I can withstand is given.

[0026] Preferably, the fixing assembly includes a base and fixing holes; the base includes a first fixing plate and a second fixing plate; the first fixing plate is set on the deck and connected to the forward support rod via a pin; the second fixing plate is set on the outer side of the hull and connected to the diagonal brace; the transmission device is connected to the base by a pin, requiring no additional tools, only the insertion and removal of the tongue-type pin, which can connect or disconnect the 2.5-ton transmission device from the base. The operation is simple and convenient, reducing manufacturing costs, greatly reducing disassembly difficulty, and saving manpower and resources during construction; the fixing holes are located on the deck; the fixing holes include a first fixing hole, a second fixing hole, a third fixing hole, and a fourth fixing hole, and the four fixing holes are connected to four fixing supports.

[0027] Preferably, the lifting equipment includes a lifting device and lifting ropes; two lifting lugs are installed on each of the two square pipes I at the bottom of the crew walking passage. These lugs work in conjunction with the lifting equipment to smoothly lift the conveyor components. The lifting ropes are connected to the lifting lugs, and the lifting ropes on both sides of the lifting device form an isosceles triangle with the square pipes I at the bottom of the conveyor passage. The vertex angle is A, the base is a, and the two sides are b and c, respectively, ensuring reliable and safe lifting. The formulas for the lifting rope tension and the base a are as follows:

[0028] a 2 =b 2 +c 2 -2bc cos A

[0029]

[0030] In the above formula, m is the weight of the square tube I and its load, f is the acceleration due to gravity, F1 is the tension of the left suspension rope, F2 is the tension of the right suspension rope, A is the angle between the suspension ropes, a is the length of the left suspension rope, and b is the length of the right suspension rope.

[0031] A method of using an outboard repeater transmission device includes the following steps:

[0032] Step 1: First, disconnect the fixed connection between the transmission component and the stationary component;

[0033] S11: Preparation for hoisting work, disconnect the connection between the first fixed support and the first fixed hole, the second fixed support and the second fixed hole, the third fixed support and the third fixed hole, and the fourth fixed support and the fourth fixed hole respectively;

[0034] S12: Hoist the repeater transmission device to the overboard, connect the hoisting rope to the hoisting lug and connect it to the crane through the spreading gear, and move it to the working position;

[0035] Step 2: Secure the fixing components to the ship's side;

[0036] S21: Fix the upper part of the front support rod to the first connecting block, the upper part of the rear support rod to the second connecting block, and the upper part of the diagonal brace to the third connecting block respectively;

[0037] S22: Fix the lower part of the front support rod to the first fixed plate, the lower part of the rear support rod to the middle part of the diagonal brace, and the lower part of the diagonal brace to the second fixed plate respectively;

[0038] S23: Remove the hoisting components;

[0039] Step 3: Begin the work;

[0040] S31: Switching the connection status of the guard bar, disconnecting the connection between the guard bar and the short ear plate, and fixing the connection between the long ear plate and the guard bar;

[0041] S32: Start transmitting the repeater, which is transmitted forward within the transmission channel;

[0042] Step 4: The repeater transmission device completes its work;

[0043] S41: Switching the connection state of the guard bar, connecting and fixing the guard bar to the short lug, and connecting and fixing the long lug to the guard bar;

[0044] S42: Perform the reverse process of steps one and two to hoist the repeater transmission device to the four fixed holes on the deck.

[0045] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0046] 1. This invention comprises a main frame structure for the transmission channel of a transmission repeater and optical cable, consisting of square tubes of varying lengths. Rollers are installed on the main frame structure to prevent the repeater from colliding or breaking with the ship's side, reducing friction between the optical cable, repeater, and transmission device. A flared opening is provided at the rear of the main frame structure to facilitate the rapid and smooth passage of the repeater and optical cable. The diagonal brace and the square tube I at the bottom of the transmission channel have an inclination angle θ. This inclination angle ensures that the resultant force on the diagonal brace in the horizontal and vertical directions is zero during operation, guaranteeing the safety and reliability of the transmission process, ensuring the transmission quality of the optical cable and repeater, and improving transmission efficiency.

[0047] 2. The present invention is easy to connect and disassemble. The conveying device and the base are connected by a pin. No additional tools are required. The connection or disassembly of the 2.5-ton conveying device and the base can be achieved simply by inserting and removing the pin with a tongue. The operation is simple and convenient, reducing manufacturing costs, greatly reducing disassembly difficulty, and saving manpower and resources in the construction process.

[0048] 3. This invention is easy to fold and does not occupy the space of the ship. Due to the long length of the repeater, the volume of the transmission device is large. In order to ensure that the device can be easily stored and fixed when not in use, a new support component can be used to achieve quick folding. This is mainly achieved by removing the pins of the front support rod, the rear support rod and the four pins on the diagonal brace, which allows the diagonal brace to rotate and fold, thereby realizing the retraction of the device.

[0049] 4. This invention is safe and reliable. The device is equipped with a non-disassembly anti-cable-jump component. In order to avoid cable-jumping that may occur during optical cable transmission, the top of the transmission device is designed with an anti-cable-jump stop bar. In addition, the stop bar adopts a rotating design, which can be quickly fixed in both horizontal and vertical ways by plugging and unplugging the pin, thus ensuring the reliability of repeater transmission.

[0050] 5. The transmission process of this invention is simple. The repeater does not require complicated steps during the transmission process. The transmission can be assisted by the cooperation of various components, which improves the transmission quality and ensures the transmission efficiency. The different fixing and disconnection methods of each component can quickly realize the switching of the working state of the transmission device. Attached Figure Description

[0051] Figure 1 This is a front view of the conveying device of the present invention;

[0052] Figure 2 This is a connection state diagram of the transmission device of the present invention;

[0053] Figure 3 This is a top view of the conveying device of the present invention;

[0054] Figure 4 This is a center view of the conveying device of the present invention;

[0055] Figure 5 This is a diagram showing the composition of the protective rod of the present invention;

[0056] Figure 6 Diagram showing the conveyor system disassembled from the hull;

[0057] Figure 7 A diagram showing the folded and hoisted conveying device of the present invention;

[0058] Figure 8 Two figures show the folded and hoisted conveying state of the conveying device of the present invention;

[0059] Figure 9 Three figures showing the folded and hoisted conveying device of the present invention;

[0060] In the diagram: 100-Conveying assembly, 200-Supporting assembly, 300-Fixing assembly, 400-Lifting assembly; 11-Conveying channel, 12-Fixing brace, 13-Guard rod, 14-Connecting block; 21-Diagonal brace, 22-Front support rod, 23-Rear support rod, 24-Hinge; 31-Base, 32-Fixing hole; 41-Lifting device, 42-Lifting rope.

[0061] 111-Square tube, 112-Roller, 113-Hanging lug, 114-Baffle, 115-Handle, 116-Pedal; 121-First fixed support, 122-Second fixed support, 123-Third fixed support, 124-Fourth fixed support; 131-Block, 132-Block handle, 133-Long ear plate, 134-Short ear plate; 141-First connecting block, 142-Second connecting block, 143-Third connecting block; 311-First fixing plate, 312-Second fixing plate; 321-First fixing hole, 322-Second fixing hole, 323-Third fixing hole, 324-Fourth fixing hole.

[0062] 1-Square tube I, 2-Square tube II, 3-Square tube III, 4-Square tube IV, 5-Square tube V, 6-Square tube VI. Detailed Implementation

[0063] To more clearly illustrate the technical solution of this invention, the technical solution of this patent will be further described in detail below with reference to the accompanying drawings:

[0064] like Figures 1-3As shown, an outboard repeater transmission device includes a transmission component 100, a support component 200, a fixing component 300, and a hoisting device 400. The transmission component 100 includes a transmission channel 11, a fixing support 12, a protective rod 13, and a connecting block 14. The transmission component 100 is located at the upper part of the transmission device, with its left side connected to the cable tray inside the ship's cabin and its right side suspended in the air. Below it are the ship's hull plating and the water surface. As an important component of the transmission device, the transmission component 100 adopts a dual-channel transmission method to simultaneously meet the independent transmission needs of two transmission elements. Furthermore, the transmission component 100 has a sufficiently long length... The degree of stability ensures that the transmission element can still be transmitted smoothly on the outside of the ship's side; the support assembly 200 includes a diagonal brace 21, a front support rod 22, a rear support rod 23, and a hinge 24. The support assembly 200 is located in the lower middle position of this transmission device, and its upper part is connected to the transmission assembly 100. Its left side is fixed to the outer plate of the ship's side. Its main functions are: first, to ensure that the transmission device supports the transmission assembly 100 in the working state. Through the calculation of reasonable support angle, the safety and reliability of the transmission process are ensured; second, to ensure that it can be folded in the non-working state, without occupying the space of the ship's hull, and to facilitate the storage of the transmission device. The fixing component 300 includes a base 31 and a fixing hole 32. The base 31 is located on the hull deck and the outer side of the ship's side, and connects with the support component 200 to ensure the support of the conveying component 100 when the conveying device is in operation. The fixing hole 32 is located on the hull deck and cooperates with the fixing support 12 of the conveying component 100 to fix the platform on the deck when the conveying device is not in operation, reducing the hull width during actual operation and ensuring the reliability of the conveying device when not in operation. The lifting equipment 400 cooperates with the lifting lug 113 of the conveying component 100 during the folding process of this platform, and safely lifts the platform from above to the fixing hole 32 with a reasonable lifting force and corresponding lifting rope angle. The conveying device is made using existing materials in the shipyard, saving manufacturing costs.

[0065] The transmission assembly 100 includes a transmission channel 11, a fixed support 12, a protective rod 13, and a connecting block 14. The transmission channel 11 is located at the upper part of the transmission assembly 100, the fixed support 12 is located at the lower part of the transmission channel 11, the protective rod 13 is located at the upper part of the transmission channel 11, and the connecting block 14 is located at the front and middle parts below the transmission channel 11. The transmission channel 11, as the main body of the transmission assembly 100, has a length extending beyond the ship's side determined according to the size of the transmission element. The transmission channel 11 has two element transmission channels and one crew walking channel. The element transmission channels transmit repeaters and optical cables, and the sides and bottom are equipped with reduction... The friction components and the transmission outlet are equipped with protective components to ensure that the repeater and optical cable can be transmitted smoothly along the predetermined route. In addition, a crew walking passage is provided to facilitate crew movement and better ensure the reliability of the transmission process. The fixed support 12 corresponds to the fixed hole 32 in the fixed component 300 and is connected when the platform is not in operation. The main function of the guardrail 13 is to prevent the transmission element from jumping during transmission. The connecting block 14 is connected to the support component 200, and the support component 200 is connected to the base 31 of the fixed component 300, ultimately ensuring that the transmission device can connect the platform and the hull when it is in operation.

[0066] The conveyor channel 11 includes rollers 112, lugs 113, baffles 114, handles 115, pedals 116, and square tubes 111 of different lengths: square tube I1, square tube II2, square tube III3, square tube IV4, square tube V5, and square tube VI6. The transmission component 100 has four long rectangular tubes I1 arranged side by side, in two rows, one above the other. The rectangular tubes I1 on the vertical plane are connected to five rectangular tubes II2, thus forming three channels of the transmission component 100: the left and right channels are for component transmission, and the middle channel is for crew walking. The two component transmission channels can ensure the independent transport of two optical cables, and the crew walking channel allows crew members to walk and facilitates monitoring of the optical cable transport status. One end of the component transmission channel is provided with a trumpet-shaped output port. The top of the output port has two rectangular tubes III3 that open to both sides in a trumpet shape, and the bottom has two rectangular tubes IV4 that are parallel to each other without any included angle. One end of the rectangular tube III3 is installed on the rectangular tube II2, and the other end is installed on the top surface of the rectangular tube VI6. One end of the rectangular tube IV4 is installed on the third fixed support 123, and the other end is installed on the rectangular tube V5. Both ends of the rectangular tube V5 are installed on the lower part of the rectangular tube VI6. That is, the rectangular tubes 111 constitute the main frame structure of the transmission device 100, located on both sides of each channel and the output port. The front output port of the transmission device is horn-shaped, which can better ensure the transmission speed of the transmission components. Compared with the straight output port, it increases the transmission space, allowing repeaters and optical cables to pass through quickly and smoothly.

[0067] Rollers 112 are distributed vertically and horizontally between the component conveying channels. Ten rollers are installed on each side of the conveying channel, and nine rollers are installed at the bottom. This reasonable arrangement avoids collisions or damage between the repeater and the ship's side, and reduces friction during the transmission of optical cables and repeaters. Figure 4 Lifting lugs 113 are located on the bottom square tubes I1 on both sides of the crew walking passage. Two lifting lugs 113 are installed on each square tube I1 and work with the lifting equipment 400 to smoothly lift the conveying component 100. Baffles 114 are located at the output of the conveying passage 11, i.e., on both sides of the component conveying passage output. The two sides of the baffles 114 are fixedly connected to square tubes II2 and VI6 respectively, forming a trumpet shape, to protect the optical cable and repeater from shifting during the transmission process. There are four handles 115 on the left and right sides of the crew walking passage. The handles 115 are connected to the upper square tubes I1, with two handles 115 installed on each square tube I1. The handles 115 and the guardrails 13 are spaced apart. The handles 115 ensure the personal safety of the crew when walking in the standing passage. The pedals 116 are installed on the square tubes I1 below the crew walking passage, running through the entire crew walking passage, supporting the crew when walking in the crew walking passage, and the high density of the pedals ensures the safety of the crew during work.

[0068] The fixed support 12 includes a first fixed support 121, a second fixed support 122, a third fixed support 123, and a fourth fixed support 124. The first fixed support 121 is located at the front of the square tube I1 below the main frame structure, the second fixed support 122 is located in the middle of the square tube I1, the third fixed support 123 is located at the tail of the square tube I1, and the fourth fixed support 124 is located on the square tube V5 below the trumpet-shaped output port. The four fixed supports correspond to the four fixing holes of the fixing component 300. After the platform is hoisted to the deck of the ship, the fixed support 12 is connected to the fixing hole 32, so that the conveying device can be securely fixed on the deck.

[0069] like Figure 5As shown, the protective rod 13 includes a stop bar 131, a stop bar handle 132, a long ear plate 133, and a short ear plate 134. The protective rod 13 is located in the middle and rear of the component conveying channel. The middle protective rod 13 is located between the two handles 115, and the rear protective rod 13 is located at the end of the component conveying channel, in front of the flared output port. The long ear plate 133 and the short ear plate 134 are each welded to both sides of the component conveying channel. The short ear plate 134 is located in the crew walking passage. The two ends of the stop bar 131 are connected to the short ear plate 134 and the long ear plate 133 by pins, and it is suspended between the two square tubes I1 above the component conveying channel. The two ends of the stop bar 131 are flat and fit against the upper surface of the square tube I1 when vertical. The stop handle 132 is located below and welded to the stop bar 131. By inserting and removing the pins of the long ear plate 133 and the short ear plate 134, the stop handle 132 can be raised to switch the guard bar 13 to either horizontal or vertical positions, facilitating the passage of repeaters. The guard bar 13 is mainly used to prevent cable jumps during transmission. To avoid affecting the cable hoisting, the guard bar 13 is not installed before the cable is hoisted into the transmission channel 11, but after the cable is hoisted onto the platform rollers 112. To simplify the operation of the guard bar 13, a rotary design is adopted, allowing for quick switching between different states by inserting and removing the pins. The connecting block 14 includes a first connecting block 141, a second connecting block 142, and a third connecting block 143. The connecting block 14 is located in the front middle of the square tube I1 below the main frame structure of the conveying channel 11. The three connecting blocks correspond to the three support members of the support assembly 200. When the conveying device 100 is in operation, the three connecting blocks are connected to the front support rod 22, the diagonal brace 21, and the rear support rod 23 in sequence to support the stable operation of the conveying device.

[0070] The support assembly 200 includes a diagonal brace 21, a front support rod 22, a rear support rod 23, and a hinge 24. The support assembly 200 is located below the conveying assembly 100. The front support rod 22 is located at the front of the support assembly 200, connected to the first connecting block 141 via a pin at the top and to the first fixing plate 311 in the base 31 via a pin at the bottom. The rear support rod 23 is located in the middle of the support assembly 200, connected to the second connecting block 142 via a pin at the top and to the connecting block in the middle of the diagonal brace 21 via a pin at the bottom. The diagonal brace 21 is located at the rear of the support assembly 200, inserted into a hole on the second fixing plate 312 in the base 31 on the left, and connected to the third connecting block 143 via a pin on the right. One side of the hinge 24 is connected to the square tube I1 at the bottom of the main frame structure, and the other side is fixed to the upper part of the diagonal brace 21. The hinge 24 can drive the diagonal brace 21 to rotate, so that when the conveying assembly 100 retracts, the diagonal brace 21 is finally parallel to the conveying channel 11. When the support assembly 200 is not in operation, the front support rod 22 is disconnected from the square tube I1 below the conveying channel 11 and the first fixing plate 311 of the base 31 by removing the pin (the pin used is a tongue-type pin). The rear support rod 23 is disconnected from the square tube I1 and the diagonal brace 21, and the right side of the diagonal brace 21 is disconnected from the square tube I1. Then, the conveying channel 11 is lifted so that the left side of the diagonal brace 21 is disconnected from the second fixing plate 312 in the base 31. The connection between the conveying assembly 100 and the support assembly 200 is achieved only through the hinge 24. This innovative structure enables rapid folding. During the lifting process, the angle of the diagonal brace 21 is changed through the hinge 24 to minimize the height of the entire system after folding.

[0071] Specifically, in the working state, the support assembly 200 has its right side connected to the square tube I1 at the bottom of the main frame structure of the conveyor channel 11 via the diagonal brace 21, its middle side connected to the conveyor assembly 100 via the rear support rod 23, and its left side connected to the outer side of the ship's hull via the second fixing plate 312 in the base 31. Since the support assembly 200 is located on the outer side of the ship's hull and cannot provide vertical support, it is necessary to reasonably calculate the inclination angle θ formed by the diagonal brace 21 and the square tube I1 at the bottom of the conveyor channel 11 under this connection method. If the inclination angle θ is not properly designed, it will seriously affect the operational safety of the conveyor device, thereby delaying the construction period, causing significant property damage, and seriously threatening the personal safety of the crew. The method for determining the inclination angle θ is as follows: stress analysis and reasonable calculation are performed on both the diagonal brace 21 and the bottom square tube I1 connected to the diagonal brace 21. First, let's analyze the square tube I1. When the conveying device is in operation, the main frame structure is horizontal, and the square tube I1 is in a horizontal state. The force point at the left end is point A, the force point at the right end is point B, and the middle is point C. When the left end is fixed, the square tube I1 will experience force F at the contact point at point A. A Because it can withstand torque M A Then F AIt can be decomposed into a horizontal force F AX and vertical force F AY The right end bears the support force F from the diagonal brace 21. B The direction is along the diagonal brace 21. In addition, the middle part of the square tube I1 bears the support force F from the rear support rod 23. C The force conditions of the square tube I1 in the horizontal and vertical directions determine the transportation safety of the conveying device. To ensure the safety of this process, the resultant force in the horizontal and vertical directions of the square tube I1 in the horizontal working state should be zero. The force relationship in the horizontal and vertical directions is as follows:

[0072] F AX +F B cosθ=0

[0073] F AY +F B sinθ+F C -m1g=0

[0074] F C L1+F B L2sinθ+M A -m1gL1=0;

[0075] In the above formula, m1 is the weight of the conveying component and its load, g is the acceleration due to gravity, θ is the inclination angle between the square tube I1 and the diagonal brace, and F AX Let F be the horizontal component of the force acting at point A. AY Let F be the vertical component of the force acting at point A. B F provides support force to the transmission components for the diagonal bracing. C The rear support rod provides support force to the transmission assembly. L1 is the distance from the rear support rod to the left end of the square tube I1, and L2 is the distance from the rear support rod to the right end of the square tube I1.

[0076] Furthermore, the force analysis of the diagonal brace 21 is as follows: Under the working state of the platform, the diagonal brace 21 forms a certain inclination angle θ with the square tube I1. The force point at the right end is point B, the middle is point C, and the force point at the left end is point D. When the left end is fixed, the diagonal brace 21 will be subjected to a force F at point D when it connects with the hull. D Because it can withstand torque M D It can then be decomposed into a horizontal force F. DX and vertical force F DY It bears the pressure F from the upper part of the whole at the right end. B The direction is along the diagonal brace 21, and the middle of the diagonal brace 21 bears the pressure F from the rear support rod 23. CThe pressure borne by the diagonal brace 21 is equal in magnitude and opposite in direction to the supporting force on the square tube I1. It is essential to ensure that the resultant force in the horizontal and vertical directions on the diagonal brace 21 is zero during operation. This guarantees the safety and reliability of the transmission process, ensures the transmission quality of the optical cable and repeater, and improves transmission efficiency. The force relationship in the horizontal and vertical directions is as follows:

[0077] F B cosθ-F DX =0

[0078] F B sinθ+F C +m2g-F DY =0

[0079] F C L1 cosθ+m2gL1 cosθ-M D =0;

[0080] In the above formula, m2 is the weight of the diagonal brace, g is the acceleration due to gravity, θ is the inclination angle between the square tube I1 and the diagonal brace, and F... B F applies pressure to the diagonal bracing of the transmission component. C F provides diagonal bracing pressure to the rear support rod. DX Let F be the horizontal component of the force acting at point D. DY L1 is the vertical component of the force at point D, and L1 is the distance from the rear support rod to the left end of the square tube I1.

[0081] like Figure 4 As shown, the fixing component 300 includes a base 31 and a fixing hole 32. The base 31 is located on the hull deck and the outer side of the ship's side. The base 31 is connected to the support component 200 to fix the platform in the working state. The fixing hole 32 is located on the deck and is connected to the conveying component 100 to fix the platform in the non-working state. The base 31 and the fixing hole 32 are connected correspondingly in different states so that the conveying device can be reliably fixed on the deck in both the working and non-working states. The base 31 includes a first fixing plate 311 and a second fixing plate 312. The first fixing plate 311 is located above the deck and below the first connecting block 141. The first fixing plate 311 is connected to the front support rod 22 through a tongue-shaped pin. The front support rod 22 is connected to the first connecting plate 141 to fix the front part of the conveying component 100. The second fixing plate 312 is located on the outer side of the ship's side and has a plug hole. It is plugged into and connected to the diagonal brace 21 to connect the diagonal brace 21 to the hull. Figure 8The fixing holes 32 include a first fixing hole 321, a second fixing hole 322, a third fixing hole 323, and a fourth fixing hole 324. When the platform is not in operation, the hoisting assembly 400 hoists the conveying assembly 100 above the fixing holes. From left to right, the fixing holes are the first fixing hole 321, the second fixing hole 322, the third fixing hole 323, and the fourth fixing hole 324. Connecting the fixing holes 32 to the corresponding fixing supports 12 secures the platform.

[0082] like Figures 6-9 As shown, the lifting assembly 400 includes a lifting device 41 and a lifting rope 42. When the platform is not in operation, the pins between the first connecting block 141 and the front support rod 42, the second connecting block 142 and the rear support rod 23, the third connecting plate 143 and the diagonal brace 21, the front support rod 42 and the first fixing plate 311, the rear support rod 23 and the diagonal brace 21, and the diagonal brace 21 and the second fixing plate 312 are removed. The diagonal brace 21 in the support assembly 200 is then folded with the assistance of the hinge 24. The hinge 24 is a torque hinge, capable of positioning at any angle. Manual operation ensures parallelism, making the diagonal brace 21 parallel to the square tube I1 without disconnecting the connection. Then, the lifting rope 42 is connected to the lifting lug 113, and under the traction of the lifting device 41, the conveying assembly 100 is lifted to the deck, aligning the fixing hole 32 with the fixing support 12.

[0083] Specifically, during the lifting process, the lifting rope 42 and the lifting lug 113 will form a certain angle. The two lifting ropes 42 and the square tube I1 at the bottom of the conveying assembly 100 form an isosceles triangle with vertex angle A, base a, and sides b and c respectively. To ensure the reliability and safety of the lifting process, the tension between the lifting ropes and the angle between the left and right lifting ropes should be reasonably distributed. The calculation method is as follows:

[0084] a 2 =b 2 +c 2 -2bc cos A

[0085]

[0086] In the above formula, m is the weight of the square tube I1 and its load, g is the acceleration due to gravity, F1 is the tension of the left suspension rope, F2 is the tension of the right suspension rope, A is the angle between the suspension ropes, a is the length of the left suspension rope, and b is the length of the right suspension rope.

[0087] The following describes how to use the transmission device of the outboard repeater, with the following steps:

[0088] Step 1: First, disconnect the fixed connection between the transmission component 100 and the fixed component 300.

[0089] S11: Preparation for hoisting the outboard repeater transmission device, disconnect the first fixed support 121 from the first fixed hole 321, the second fixed support 122 from the second fixed hole 322, the third fixed support 123 from the third fixed hole 323, and the fourth fixed support 124 from the fourth fixed hole 324 respectively.

[0090] S12: The repeater transmission device is hoisted to the outside of the ship via the hoisting assembly 400. The hoisting rope 42 is connected to the hoisting lug 113 and connected to the crane via the lifting tool 41, and continuously moved to the working position.

[0091] Step 2: Secure the fixing component 300 to the ship's side.

[0092] S21: Preparation for fixing the repeater transmission device outside the hull, respectively fixing the upper part of the front support rod 22 to the first connecting block 141, the upper part of the rear support rod 23 to the second connecting block 142, and the upper part of the diagonal brace 21 to the third connecting block 143.

[0093] S22: The lower part of the front support rod 22 is fixedly connected to the first fixing plate 311, the lower part of the rear support rod 23 is fixedly connected to the middle part of the diagonal brace 21, and the lower part of the diagonal brace 21 is fixedly connected to the second fixing plate 312 respectively.

[0094] S23: After the repeater transmission device is fully secured to the ship's side, remove the hoisting assembly 400.

[0095] Step 3: The repeater transmission device starts working.

[0096] S31: Switching the connection state of the guard rod 13, disconnecting the connection between the stop rod 131 and the short ear plate 134, and fixing the connection between the long ear plate 133 and the stop rod 131;

[0097] S32: Start transmitting the repeater, which continuously transmits forward within transmission channel 11.

[0098] Step 4: The repeater transmission device completes its work.

[0099] S41: Switching the connection state of the guard rod 13, the long ear plate 133 is connected and fixed to the stop rod 131, and the stop rod 131 is connected and fixed to the short ear plate 134;

[0100] S42: Perform the reverse process of steps one and two to fix the repeater transmission device to the four fixed holes on the deck.

[0101] The transmission process of the repeater is simple. No complicated steps are required during the transmission process. The transmission can be assisted by the cooperation of various components of the device, which improves the transmission quality and ensures the transmission efficiency. Different fixing and disconnection methods of various components can quickly realize the switching of the working state of the transmission device.

[0102] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An outboard repeater transmission device, characterized in that: Includes conveying components, support components, fixing components, and hoisting equipment; The conveying assembly includes a conveying channel, a fixed support, a protective rod, and a connecting block; The conveying channel includes square tubes I, II, III, IV, V, and VI, rollers, lifting lugs, baffles, handles, and pedals; each square tube constitutes the main frame structure; square tubes I and II form the central crew walking channel and the component conveying channels on both sides; square tubes III, IV, V, and VI form a trumpet-shaped output port; a trumpet-shaped output port is provided at one end of the component conveying channel; the two square tubes III at the top of the output port open to both sides in a trumpet shape, and the two square tubes IV at the bottom are parallel to each other; the end of square tube IV at the trumpet opening is installed on square tube V; baffles are provided on both sides of the output port; rollers are provided at the bottom and both sides of the component conveying channel; The support assembly includes a diagonal brace; the left end of the diagonal brace is mounted on the second fixed plate in the base, and the right end is mounted on the third connecting block; the diagonal brace forms an inclination angle θ with the square tube I at the bottom of the conveying channel, and the resultant force on the diagonal brace in the horizontal and vertical directions is 0 when it is in operation, as calculated by the following formula: F B cosθ-F DX =0 F B sinθ+F C +m2g-F DY =0 F C L1cosθ+m2gL1cosθ-M D =0 In the above formula, m2 is the weight of the diagonal brace, g is the acceleration due to gravity, θ is the inclination angle between the square tube I at the bottom of the conveyor channel 11 and the diagonal brace, and F B F applies pressure to the diagonal bracing of the transmission component. C F provides diagonal bracing pressure to the rear support rod. DX Let F be the horizontal component of the force acting at point D. DY Let M be the vertical component of the force at point D, L1 be the distance from the rear support rod to the left end of the square tube I at the bottom of the conveyor channel 11, and M be the vertical component of the force. D The torque that the diagonal brace can withstand; When the platform is in operation, the diagonal brace and the square tube I form a certain angle of inclination θ, and the force point on the left end is point D; Protective rods are provided in the middle and at the rear of the component conveying channel. The protective rod in the middle is located between the two handles, and the protective rod at the rear is close to the output port. The protective rod includes a stop bar, a stop bar handle, a short ear plate, and a long ear plate; the short ear plate and the long ear plate are respectively installed on the square tube I on both sides of the top of the component conveying channel; the two ends of the stop bar are installed on the long ear plate and the short ear plate by pins; the two ends of the stop bar are flat and cooperate with the upper end face of the square tube I on both sides of the top of the conveying channel; the stop bar handle is installed on the stop bar.

2. The outboard repeater transmission device according to claim 1, characterized in that: The fixed support includes a first fixed support, a second fixed support, a third fixed support, and a fourth fixed support; the first fixed support is located at the front of the square tube I at the bottom of the conveying channel, the second fixed support is located in the middle of the square tube I, the third fixed support is located at the tail of the square tube I, and the fourth fixed support is located on the bottom surface of the square tube V at the output port.

3. An outboard repeater transmission device according to claim 1, characterized in that: The connecting block includes a first connecting block, a second connecting block, and a third connecting block; the first connecting block is located at the front of the square tube I at the bottom of the conveying channel, and the second and third connecting blocks are located in the middle of the square tube I.

4. An outboard repeater transmission device according to claim 1, characterized in that: The support assembly also includes a front support rod, a rear support rod, and a hinge; the upper end of the front support rod is connected to the first connecting block via a pin, and the lower end is connected to the first fixed plate in the base via a pin; the upper end of the rear support rod is connected to the second connecting block via a pin, and the lower end is connected to the middle of the diagonal brace via a pin; one side of the hinge is connected to the square tube I at the bottom of the conveying channel, and the other side is fixed to the diagonal brace; the left end of the diagonal brace is set in the insertion hole on the second fixed plate in the base, and the right end is connected to the third connecting block via a pin.

5. An outboard repeater transmission device according to claim 1, characterized in that: The resultant force on the square tube I at the bottom of the conveying channel in the horizontal and vertical directions is 0 when it is in operation. The calculation formula is as follows: F AX +F B cosθ=0 F AY +F B sinθ+F C -m1g=0 F C L1+F B L2sinθ+M A -m1gL1=0 In the above formula, m1 is the weight of the conveying component and its load, g is the acceleration due to gravity, θ is the inclination angle between the square tube I at the bottom of the conveying channel 11 and the diagonal brace, and F AX Let F be the horizontal component of the force acting at point A. AY Let F be the vertical component of the force acting at point A. B F provides support force to the transmission components for the diagonal bracing. C The rear support rod provides support force to the transmission assembly. L1 is the distance from the rear support rod to the left end of the square tube I, L2 is the distance from the rear support rod to the right end of the square tube I, and M... A The torque that the square tube I can withstand; When the conveying device is in operation, the main frame structure is horizontal, the square tube I is in a horizontal state, and the force point on the left end is point A.

6. An outboard repeater transmission device according to claim 1, characterized in that: The fixing assembly includes a base and fixing holes; the base includes a first fixing plate and a second fixing plate; the first fixing plate is disposed on the deck and connected to the front support rod by a pin; the second fixing plate is disposed on the outer side of the hull and connected to the diagonal brace by a pin; the fixing holes are located on the deck; the fixing holes include a first fixing hole, a second fixing hole, a third fixing hole and a fourth fixing hole.

7. An outboard repeater transmission device according to claim 1, characterized in that: The hoisting equipment includes a lifting device and lifting ropes; two lifting lugs are installed on each of the two square pipes I at the bottom of the crew walking passage; the lifting ropes are connected to the lifting lugs; the lifting ropes on both sides of the lifting device and the square pipes I at the bottom of the conveying passage form an isosceles triangle with the vertex angle A, the base a, and the two sides b and c respectively; the formulas for the lifting rope tension and the base a are as follows: a 2 =b 2 +c 2 -2bc cos A In the above formula, m is the weight of the square tube I and its load, g is the acceleration due to gravity, F1 is the tension of the left suspension rope, F2 is the tension of the right suspension rope, A is the angle between the suspension ropes, a is the length of the left suspension rope, and b is the length of the right suspension rope.

8. A method of using an outboard repeater transmission device, characterized in that: Includes the following steps: Step 1: First, disconnect the fixed connection between the transmission component and the stationary component; S11: Preparation for hoisting work, disconnect the connection between the first fixed support and the first fixed hole, the second fixed support and the second fixed hole, the third fixed support and the third fixed hole, and the fourth fixed support and the fourth fixed hole respectively; S12: Hoist the repeater transmission device to the overboard, connect the hoisting rope to the hoisting lug and connect it to the crane through the spreading gear, and move it to the working position; Step 2: Secure the fixing components to the ship's side; S21: Fix the upper part of the front support rod to the first connecting block, the upper part of the rear support rod to the second connecting block, and the upper part of the diagonal brace to the third connecting block respectively; S22: Fix the lower part of the front support rod to the first fixed plate, the lower part of the rear support rod to the middle part of the diagonal brace, and the lower part of the diagonal brace to the second fixed plate respectively; S23: Remove the hoisting components; Step 3: Begin the work; S31: Switching the connection status of the guard bar, disconnecting the connection between the guard bar and the short ear plate, and fixing the connection between the long ear plate and the guard bar; S32: Start transmitting the repeater, which is transmitted forward within the transmission channel; Step 4: The repeater transmission device completes its work; S41: Switching the connection state of the guard bar, connecting and fixing the guard bar to the short lug, and connecting and fixing the long lug to the guard bar; S42: Perform the reverse process of steps one and two to hoist the repeater transmission device to the four fixed holes on the deck.

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