A composite floating cable with a flat structure

Abstract

The present invention discloses a composite floating cable with a flat structure, belonging to the technical field of cables, comprising: a float box, inside which a cable body is slidably connected; a clamping unit, rotatably connected inside the float box; a cleaning unit, rotatably connected to the end of the clamping unit; a transmission unit, one end of which is fixed to the side of the clamping unit and the other end is connected to the cleaning unit; and a flushing unit, slidably connected to the side of the clamping unit. When the wind and waves on the water surface are large, the float box will slide on the surface of the cable body driven by the wind and waves, the clamping unit will rotate inside the float box driven by the cable body, and the transmission unit will drive the cleaning unit to revolve and rotate with the cooperation of the clamping unit, which helps the cleaning unit remove the adhesives on the surface of the cable body. At the same time, the flushing unit will quickly flush out the adhesives on the surface of the cable body and the accumulations inside the float box. The present invention has the advantages of high automation of cleaning and good cleaning effect.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and more particularly to a flat composite floating cable. Background Art

[0002] Chinese Patent (Authorization Publication No.: CN220933785U) discloses a flat optoelectronic composite floating cable, belonging to the field of floating cables, including a fiber core layer, an electrical signal core layer, a buoyancy member, an inner sheath layer, a foaming layer, and an outer sheath layer arranged in sequence from the inside out. The buoyancy member includes: a semi-circular core corresponding ring, corresponding to the electrical signal core layer and the fiber core layer respectively; an arc connecting portion arranged at the top of the semi-circular core corresponding ring for connecting the semi-circular core corresponding rings corresponding to two electrical signal core layers; a reinforcing core corresponding sleeve corresponding to two reinforcing cores in the cross-sectional length direction of the cable body. Through the buoyancy member, the cable body can ensure a standard state when used on the water surface or in water, and will not curl due to the action of wind waves or undercurrents; through the design of the buoyancy member, the cores are protected to prevent the electrical signal core layer and the fiber core layer from being damaged by extrusion.

[0003] The flat optoelectronic composite floating cable in the above technical solution still has the following defects when in use: after long-term use, a large amount of adhesives will be adsorbed on the surface of the composite floating cable. The adhesives will increase the gravity of the composite floating cable and cause certain damage to the composite floating cable, thereby affecting the normal use of the composite floating cable. Therefore, a flat composite floating cable is needed to solve the above problems. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the embodiment of the present invention is to provide a flat composite floating cable to solve the problems in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A flat composite floating cable includes:

[0007] A float box, in which a cable body is slidably connected, and a foaming layer is installed on the side surface of the float box;

[0008] A clamping unit, rotatably connected in the float box, and its surface is in rolling connection with the cable body, for clamping and fixing the cable body in the float box;

[0009] A cleaning unit, rotatably connected to the end of the clamping unit, and rotatably connected to the surface of the cable body, for cleaning the surface of the cable body;

[0010] The transmission unit is fixed to the side of the clamping unit at one end and connected to the cleaning unit at the other end, and is used to cooperate with the clamping unit to achieve the rotation and revolution of the cleaning unit, so as to clean the surface of the cable body;

[0011] The flushing unit is slidably connected to the side of the clamping unit and is used to flush the surface of the cable body;

[0012] The floating unit is installed inside the cable body and is used to float the cable body.

[0013] As a preferred technical solution of the present invention, the clamping unit includes: a fixed rod rotatably connected inside the float box; a turntable installed on the surface of the fixed rod, and a cable groove is provided on the turntable, and the cable body is slidably connected in the cable groove; an adjusting rod slidably connected inside the float box, and a U-shaped frame is installed at the end; a rotating shaft rotatably connected inside the U-shaped frame, and a pressing wheel is installed on the surface; an elastic member connected between the side of the U-shaped frame and the inner wall of the float box.

[0014] As a preferred technical solution of the present invention, the cleaning unit includes: a radiation rack fixed to the two side surfaces of the turntable; a first inclined rack inclinedly connected to the end of the radiation rack, and a first rotating pin is rotatably connected inside; a first cleaning wheel installed on the surface of the first rotating pin and rotatably connected to the surface of the cable body; a second inclined rack inclinedly connected to the end of the first inclined rack away from the radiation rack, and a second rotating pin is rotatably connected inside; a second cleaning wheel installed on the surface of the second rotating pin and rotatably connected to the surface of the cable body.

[0015] As a preferred technical solution of the present invention, the transmission unit includes: a second gear installed on the surface of the second rotating pin; a gear ring connected to the surface of the fixed rod through a triangular frame; a first gear installed on the surface of the first rotating pin and meshingly connected to the second gear and the gear ring respectively.

[0016] As a preferred technical solution of the present invention, the flushing unit includes: a runner eccentrically installed on the surface of the rotating shaft; a rotating ring rotatably connected to the surface of the runner; a bracket connected to the two sides of the U-shaped frame, and two groups of piston cylinders are fixed on the side, and a sliding member is slidably connected inside each of the two groups of piston cylinders; a sliding rod fixed to the two sides of the rotating ring, and the ends of the two sliding rods are respectively connected to the two sliding members; a drain valve installed on one side of the two groups of piston cylinders; a water inlet valve installed on the side of the two groups of piston cylinders away from the drain valve.

[0017] As a preferred technical solution of the present invention, the floating unit includes: an optical fiber core installed inside the cable body; a buoyancy cavity opened inside the cable body, and the buoyancy cavity is at least four groups; a reinforcing strip installed inside the cable body, and the number of the reinforcing strips is the same as that of the buoyancy cavities.

[0018] The embodiments of the present invention have the following beneficial effects compared with the prior art: When using the underwater device in the present invention, the cable body can be installed in the float box through the clamping unit. When the wind and waves on the water surface are large, the float box will slide on the surface of the cable body driven by the wind and waves. Thus, the clamping unit will rotate in the float box driven by the cable body, and the transmission unit will drive the cleaning unit to revolve and rotate in cooperation with the clamping unit, which helps the cleaning unit effectively remove the adhesions on the surface of the cable body. At the same time, the flushing unit will reciprocate in the float box in cooperation with the clamping unit, so that the flushing unit can quickly flush the adhesions on the surface of the cable body and the deposits on the inner wall of the float box out of the float box through the sewage outlet, having the advantages of high automation and good cleaning effect.

[0019] To more clearly elaborate the structural features and functions of the present invention, the following will combine the drawings and specific embodiments to detail the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the flat composite floating cable provided by the embodiment of the present invention.

[0021] Figure 2 It is a schematic diagram of the internal structure of the float box provided by the embodiment of the present invention.

[0022] Figure 3 For Figure 2 the partial enlarged view of part A in

[0023] Figure 4 It is a schematic diagram of the structure of the cleaning unit provided by the embodiment of the present invention.

[0024] Figure 5 For Figure 1 the partial enlarged view of part B in

[0025] Figure 6 It is a schematic diagram of the structure of the turntable provided by the embodiment of the present invention.

[0026] Reference numerals: 1, float box; 11, cable body; 12, foaming layer; 2, clamping unit; 21, fixing rod; 22, turntable; 23, cable groove; 24, adjusting rod; 25, U-shaped frame; 26, rotating shaft; 27, pressing wheel; 28, elastic member; 3, cleaning unit; 31, radiation rack; 32, first inclined rack; 321, first rotating pin; 322, first cleaning wheel; 33, second inclined rack; 331, second rotating pin; 332, second cleaning wheel; 4, transmission unit; 41, first gear; 42, second gear; 43, gear ring; 44, tripod; 5, flushing unit; 51, runner; 52, rotating ring; 53, bracket; 54, piston cylinder; 541, drain valve; 542, inlet valve; 55, slide bar; 6, floating unit; 61, optical fiber core; 62, buoyancy cavity; 63, reinforcing strip. Detailed implementation mode

[0027] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0029] See Figures 1 to 6 , a composite floating cable with a flat structure, comprising:

[0030] A float box 1, inside which a cable body 11 is slidably connected, and a foaming layer 12 is installed on the side of the float box 1;

[0031] A clamping unit 2, rotatably connected inside the float box 1, and its surface is in rolling connection with the cable body 11, and is used for clamping and fixing the cable body 11 inside the float box 1;

[0032] A cleaning unit 3, rotatably connected to the end of the clamping unit 2, and is in rotational connection with the surface of the cable body 11, and is used for cleaning the surface of the cable body 11;

[0033] A transmission unit 4, one end of which is fixed to the side of the clamping unit 2, and the other end is connected to the cleaning unit 3, and is used to cooperate with the clamping unit 2 to realize the self-rotation and revolution of the cleaning unit 3, so as to realize the cleaning of the surface of the cable body 11;

[0034] A flushing unit 5, slidably connected to the side of the clamping unit 2, and is used for flushing the surface of the cable body 11;

[0035] A floating unit 6, installed inside the cable body 11, and is used for floating the cable body 11.

[0036] In an embodiment of the present invention, when using an underwater device, the cable body 11 can be installed in the float box 1 through the clamping unit 2. When the wind and waves on the water surface are large, the float box 1 will slide on the surface of the cable body 11 driven by the wind and waves. The clamping unit 2 will rotate in the float box 1 driven by the cable body 11. And the transmission unit 4 will drive the cleaning unit 3 to revolve and rotate in cooperation with the clamping unit 2, which helps the cleaning unit 3 to effectively remove the adhesions on the surface of the cable body 11. At the same time, the flushing unit 5 will reciprocate in the float box 1 in cooperation with the clamping unit 2, so that the flushing unit 5 can quickly flush out the adhesions on the surface of the cable body 11 and the deposits on the inner wall of the float box 1 through the sewage outlet, having the advantages of high cleaning automation and good cleaning effect.

[0037] In an embodiment of the present invention, as Figure 2 and Figure 6 shown, the clamping unit 2 includes:

[0038] A fixed rod 21, rotatably connected in the float box 1;

[0039] A turntable 22, installed on the surface of the fixed rod 21. A cable groove 23 is provided on the turntable 22, and the cable body 11 is slidably connected in the cable groove 23;

[0040] An adjusting rod 24, slidably connected in the float box 1, with a U-shaped frame 25 installed at its end;

[0041] A rotating shaft 26, rotatably connected in the U-shaped frame 25, with a pressing wheel 27 installed on its surface;

[0042] An elastic member 28, connected between the side of the U-shaped frame 25 and the inner wall of the float box 1.

[0043] In this embodiment, when using underwater devices such as submersible motors and underwater robots, one end of the cable body 11 is connected to the underwater device. At the same time, two groups of adjusting rods 24 are pulled outwards. The two groups of adjusting rods 24 will drive the U-shaped frame 25 to slide outwards in the float box 1. When the U-shaped frame 25 slides, it can compress the elastic member 28. One end of the two groups of cable bodies 11 is inserted into the interior of the float box 1, passes through the cable groove 23 on the turntable 22, and finally passes out from the other end of the float box 1. The adjusting rods 24 are released. At this time, the U-shaped frame 25 will pull the adjusting rods 24 to slide reversely in the float box 1 under the elastic force of the elastic member 28 until the U-shaped frame 25 is in close contact with the surface of the cable body 11. At this time, the cable body 11 will be limited by the clamping of the U-shaped frame 25 and the cable groove 23.

[0044] The elastic member 28 can be a spring or elastic rubber, which is convenient for pushing the adjusting rod 24 to slide in the float box 1 through the U-shaped frame 25, and there is no unique limitation here.

[0045] In an embodiment of the present invention, as Figure 2 and Figure 4 shown, the cleaning unit 3 includes:

[0046] A radiation rack 31, fixed on both side surfaces of the turntable 22;

[0047] A first inclined rack 32, inclinedly connected to the end of the radiation rack 31, and internally rotatably connected with a first rotating pin 321;

[0048] A first cleaning wheel 322, installed on the surface of the first rotating pin 321 and rotatably connected to the surface of the cable body 11;

[0049] A second inclined rack 33, inclinedly connected to the end of the first inclined rack 32 far from the radiation rack 31, and internally rotatably connected with a second rotating pin 331;

[0050] A second cleaning wheel 332, installed on the surface of the second rotating pin 331 and rotatably connected to the surface of the cable body 11.

[0051] In this embodiment, when the wind and waves on the water surface are large, the float box 1 will slide on the surface of the cable body 11 driven by the wind and waves, or when it is necessary to clean the impurities adhered to the surface of the cable body 11, the cable body 11 or the float box 1 is pulled to make the cable body 11 slide in the float box 1.

[0052] When the cable body 11 slides in the float box 1, since the surface of the cable body 11 is in close contact with the cable groove 23, the turntable 22 will rotate on the surface of the fixed rod 21 under the action of the cable body 11 and the cable groove 23. When the turntable 22 rotates, it will drive the radiation racks 31 on both sides of it to rotate, and the radiation rack 31 will drive the first inclined rack 32 and the second inclined rack 33 at its end to rotate synchronously. Therefore, the first inclined rack 32 and the second inclined rack 33 will respectively drive the first cleaning wheel 322 and the second cleaning wheel 332 on their surfaces to rotate through the first rotating pin 321 and the second rotating pin 331, so that multiple groups of the first cleaning wheels 322 and the second cleaning wheels 332 can intermittently contact the surface of the cable body 11, realizing the automatic cleaning of the surface of the cable body 11.

[0053] At least four groups of sewage outlets are provided on the surface of the float box 1 to facilitate the discharge of impurities in the float box 1, and at least eight groups of the first inclined rack 32 (and the first cleaning wheel 322) and the second inclined rack 33 (and the second cleaning wheel 332) are installed to facilitate the comprehensive cleaning of the surface of the cable body 11.

[0054] Further, since the first inclined frame 32 is inclinedly connected to the end of the radiation frame 31, and the second inclined frame 33 is inclinedly connected to the end of the first inclined frame 32, the first cleaning wheel 322 and the second cleaning wheel 332 both have a certain inclination angle with the surface of the cable body 11, which helps the first cleaning wheel 322 and the second cleaning wheel 332 to effectively remove the adhesions on the surface of the cable body 11.

[0055] In an embodiment of the present invention, as Figure 4 shown, the transmission unit 4 includes:

[0056] A second gear 42, mounted on the surface of the second rotating pin 331;

[0057] A gear ring 43, connected to the surface of the fixed rod 21 through a tripod 44;

[0058] A first gear 41, mounted on the surface of the first rotating pin 321, and meshingly connected to the second gear 42 and the gear ring 43 respectively.

[0059] In this embodiment, when the first inclined frame 32 and the second inclined frame 33 rotate, they will respectively drive the first cleaning wheel 322 and the second cleaning wheel 332 on their surfaces to rotate through the first rotating pin 321 and the second rotating pin 331. Since the first gear 41 is meshingly connected to the second gear 42 and the gear ring 43 respectively, the first gear 41 will drive the first rotating pin 321 to rotate within the first inclined frame 32 under the action of the gear ring 43, and the second gear 42 will drive the second rotating pin 331 to rotate within the second inclined frame 33 under the action of the first gear 41. Therefore, while the first inclined frame 32 and the second inclined frame 33 respectively drive the first cleaning wheel 322 and the second cleaning wheel 332 to revolve, the first cleaning wheel 322 and the second cleaning wheel 332 will also rotate on the first inclined frame 32 and the second inclined frame 33 respectively, so that the first cleaning wheel 322 and the second cleaning wheel 332 can both make full contact with the surface of the cable body 11, which helps the first cleaning wheel 322 and the second cleaning wheel 332 to comprehensively remove the adhesions on the surface of the cable body 11.

[0060] In an embodiment of the present invention, as Figure 3 shown, the flushing unit 5 includes:

[0061] A runner 51, eccentrically mounted on the surface of the rotating shaft 26;

[0062] A rotating ring 52, rotatably connected to the surface of the runner 51;

[0063] The support 53 is connected to both sides of the C-shaped frame 25, and two groups of piston cylinders 54 are fixed on the side surfaces. Two sliding members are slidably connected inside each of the two groups of piston cylinders 54;

[0064] The sliding rods 55 are fixed to both sides of the rotating ring 52, and the end portions of the two groups of sliding rods 55 are respectively connected to the two sliding members;

[0065] The drain valve 541 is installed on one side of the two groups of piston cylinders 54;

[0066] The water inlet valve 542 is installed on the side of the two groups of piston cylinders 54 away from the drain valve 541.

[0067] In this embodiment, since the surface of the cable body 11 is in close contact with the surface of the extrusion wheel 27, when the cable body 11 slides in the float box 1, the cable body 11 drives the rotating shaft 26 to rotate on the C-shaped frame 25 through the extrusion wheel 27. When the rotating shaft 26 rotates, it drives the rotating wheel 51 at its end to rotate in the rotating ring 52. Since the rotating wheel 51 is eccentrically installed on the surface of the rotating shaft 26, the rotating ring 52 drives the two sliding members at its end to reciprocally slide in the corresponding piston cylinders 54 through the two groups of sliding rods 55 under the push of the rotating wheel 51.

[0068] Both the drain valve 541 and the water inlet valve 542 are one-way valves. When the two sliding members reciprocally slide in the corresponding piston cylinders 54, the drain valve 541 and the water inlet valve 542 will alternately open and close. When the water inlet valve 542 opens and the drain valve 541 closes, water can be sucked into the piston cylinder 54 through the water inlet valve 542; when the water inlet valve 542 closes and the drain valve 541 opens, the water in the piston cylinder 54 will be sprayed onto the surface of the cable body 11 through the drain valve 541, so that the adhesives on the surface of the cable body 11 and the deposits on the inner wall of the float box 1 can be quickly flushed out of the float box 1 through the sewage outlet.

[0069] In an embodiment of the present invention, as Figure 5 shown, the floating unit 6 includes:

[0070] The optical fiber core 61 is installed inside the cable body 11;

[0071] The buoyancy cavities 62 are opened inside the cable body 11, and at least four groups of the buoyancy cavities 62 are provided;

[0072] The reinforcing strips 63 are installed inside the cable body 11, and the number of the reinforcing strips 63 is the same as that of the buoyancy cavities 62.

[0073] In this embodiment, the optical fiber core 61 is made of stainless steel wire, which has high strength and good anti-dragging ability; the buoyancy chamber 62 can provide buoyancy for the cable body 11; the cable body 11 is of a flat structure, with low density and not easy to twist, and can transmit data signals over a long distance and resist electromagnetic interference, and can realize continuous operation or repeated retraction and deployment in a complex underwater environment.

[0074] The working principle of the present invention is as follows: when the wind and waves on the water surface are large, the float box 1 will slide on the surface of the cable body 11 driven by the wind and waves. Since the surface of the cable body 11 is in close contact with the cable groove 23, the turntable 22 will rotate on the surface of the fixed rod 21 under the action of the cable body 11 and the cable groove 23. When the turntable 22 rotates, it will drive the radiation frames 31 on both sides to rotate, and the radiation frames 31 will drive the first inclined frame 32 and the second inclined frame 33 at their ends to rotate synchronously. Therefore, the first inclined frame 32 and the second inclined frame 33 will drive the first cleaning wheel 322 and the second cleaning wheel 332 on their surfaces to rotate through the first rotating pin 321 and the second rotating pin 331 respectively.

[0075] At the same time, the first gear 41 will drive the first rotating pin 321 to rotate in the first inclined frame 32 under the action of the gear ring 43, and the second gear 42 will drive the second rotating pin 331 to rotate in the second inclined frame 33 under the action of the first gear 41. Therefore, while the first inclined frame 32 and the second inclined frame 33 drive the first cleaning wheel 322 and the second cleaning wheel 332 to revolve respectively, the first cleaning wheel 322 and the second cleaning wheel 332 will also rotate self - sufficiently, so that the first cleaning wheel 322 and the second cleaning wheel 332 can fully contact the surface of the cable body 11, which helps the first cleaning wheel 322 and the second cleaning wheel 332 to effectively remove the adhesions on the surface of the cable body 11.

[0076] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection, an electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0077] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A composite floating cable with a flat structure, characterized in that: The flat composite floating cable comprises: A float box (1), wherein a cable body (11) is slidably connected inside the float box (1), and a foaming layer (12) is installed on the side of the float box (1); A clamping unit (2) is rotatably connected in the float box (1), and its surface is rollingly connected to the cable body (11), and is used to clamp and fix the cable body (11) in the float box (1); A cleaning unit (3) is rotatably connected to the end of the clamping unit (2) and is rotatably connected to the surface of the cable body (11) for cleaning the surface of the cable body (11); A transmission unit (4), one end of which is fixed to a side surface of the clamping unit (2) and the other end of which is connected to the cleaning unit (3), and is used to cooperate with the clamping unit (2) to realize the rotation and revolution of the cleaning unit (3), thereby cleaning the surface of the cable body (11); A flushing unit (5) is slidably connected to the side of the clamping unit (2) and is used to flush the surface of the cable body (11); The floating unit (6) is installed in the cable body (11) and is used to float the cable body (11).

2. The flat composite floating cable according to claim 1, characterized in that: The clamping unit (2) comprises: A fixed rod (21) is rotatably connected in the float box (1); A turntable (22) is mounted on the surface of the fixing rod (21), a cable groove (23) is provided on the turntable (22), and the cable body (11) is slidably connected in the cable groove (23); An adjusting rod (24) is slidably connected in the float box (1), and a profile frame (25) is installed at the end thereof; A rotating shaft (26) is rotatably connected in the mold frame (25) and has an extrusion wheel (27) mounted on its surface; The elastic member (28) is connected between the side of the molded frame (25) and the inner wall of the float box (1).

3. The flat composite floating cable according to claim 2, characterized in that: The cleaning unit (3) comprises: A radiation frame (31) is fixed on both side surfaces of the turntable (22); A first tilting frame (32) is tiltedly connected to the end of the radiation frame (31) and is internally rotatably connected to a first rotating pin (321); A first cleaning wheel (322) is mounted on the surface of the first rotating pin (321) and is rotatably connected to the surface of the cable body (11); A second tilting frame (33) is tiltedly connected to the end of the first tilting frame (32) away from the radiation frame (31), and is internally rotatably connected to a second rotating pin (331); The second cleaning wheel (332) is mounted on the surface of the second rotating pin (331) and is rotatably connected to the surface of the cable body (11).

4. The flat composite floating cable according to claim 3, characterized in that: The transmission unit (4) comprises: A second gear (42) mounted on a surface of the second rotating pin (331); A gear ring (43) is connected to the surface of the fixing rod (21) via a tripod (44); The first gear (41) is mounted on the surface of the first rotating pin (321) and is meshedly connected with the second gear (42) and the gear ring (43).

5. The flat composite floating cable according to claim 2, characterized in that: The flushing unit (5) comprises: A rotating wheel (51) is eccentrically mounted on the surface of the rotating shaft (26); A rotating ring (52) rotatably connected to the surface of the rotating wheel (51); The bracket (53) is connected to both sides of the molded frame (25), and two groups of piston cylinders (54) are fixed on the side, and the two groups of piston cylinders (54) are slidably connected with sliding members inside; Slide rods (55) are fixed on both sides of the rotating ring (52), and the ends of the two groups of slide rods (55) are respectively connected to the two groups of sliding members; A drain valve (541) is installed on one side of the two sets of piston cylinders (54); The water inlet valve (542) is installed on the side of the two sets of piston cylinders (54) away from the water discharge valve (541).

6. The flat composite floating cable according to claim 1, characterized in that: The floating unit (6) comprises: An optical fiber core (61) is installed inside the cable body (11); The buoyancy chambers (62) are arranged inside the cable body (11), and the buoyancy chambers (62) are at least four groups; The reinforcement strips (63) are installed inside the cable body (11), and the number of the reinforcement strips (63) and the number of the buoyancy chambers (62) are the same.

Images