An underwater towing device

Abstract

The application provides an underwater operation device and discloses an underwater traction device which comprises a base, a positioning cylinder arranged obliquely on the base, an open end of the positioning cylinder, a traction body arranged in the positioning cylinder and used for being connected with a chain, a driving module arranged on the traction body and used for driving the traction body to move in water, and a trigger used for triggering the driving module; a spring used for ejecting the traction body is arranged in the positioning cylinder, the spring is located between the bottom of the positioning cylinder and the traction body, a bolt is arranged on the traction body, the bolt is in pluggable connection with the traction body and penetrates through the inner wall of one side of the positioning cylinder, and the scheme can be used for pulling the chain by the horizontal body in the preset water depth and avoiding the terrain interference to straighten and lay the chain.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of underwater operation equipment, in particular to an underwater traction device. BACKGROUND

[0002] The flexible sensor chain is a monitoring component laid underwater for monitoring the submarine optical cable, submarine adapter box and observation instrument. In the laying process of the flexible sensor chain, after the coiled flexible sensor chain is lowered underwater, a wheeled vehicle and a cable winding and unwinding device are used to pull one end of the flexible sensor chain. The flexible sensor chain is horizontally stretched under the driving of the wheeled vehicle to complete the underwater laying. However, the laying process is too complex, and the vehicle is easily affected by the terrain or underwater current, so that the laid cable cannot be stretched straight. SUMMARY

[0003] The purpose of the present application is to provide an underwater traction device for pulling the flexible sensor chain underwater to achieve horizontal pulling of the chain in a preset water depth and avoid terrain interference for straight laying.

[0004] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0005] An underwater traction device comprises a base, an inclined positioning cylinder arranged on the base, an open top of the positioning cylinder, a traction body arranged in the positioning cylinder for connecting with the chain, a driving module arranged on the traction body for driving the traction body to move in water, and a trigger arranged on the traction body for triggering the driving module; a spring for ejecting the traction body is arranged in the positioning cylinder, the spring is located between the bottom of the positioning cylinder and the traction body, a latch is arranged on the traction body, the latch is in pluggable connection with the traction body and penetrates through the inner wall of one side of the positioning cylinder.

[0006] In the above-mentioned underwater traction device, the driving module comprises a gas storage tank for storing high-pressure gas and a valve; the gas storage tank and the valve are arranged in the traction body, the valve is in communication with the outside of the traction body and the gas storage tank, the valve is located between the bottom of the positioning cylinder and the gas storage tank, and the trigger is arranged on the valve.

[0007] In the above-mentioned underwater traction device, a strip-shaped hole extending along the axis of the positioning cylinder is formed in the side wall of the positioning cylinder, the trigger is connected with the valve core of the valve and can reciprocate along the axis of the positioning cylinder, the trigger penetrates through the side wall of one side of the traction body and is inserted into the strip-shaped hole.

[0008] In the above-mentioned underwater traction device, a first avoiding groove is formed in the inner wall of the positioning cylinder, the first avoiding groove extends to the opening of the positioning cylinder and penetrates through the opening edge of the positioning cylinder.

[0009] In the underwater traction device, the base is provided with a tray and positioning pins on the tray for winding the chain.

[0010] In the underwater traction device, the tray is provided with a second avoiding groove, one end of the second avoiding groove extending to the positioning cylinder and being arranged in an open manner.

[0011] In the underwater traction device, the base is provided with a fixing block, the outer wall of the positioning cylinder is provided with an adjusting plate and a plurality of connecting holes on the adjusting plate, the plurality of connecting holes are arranged along an arc path at intervals, the fixing block is detachably connected with the connecting holes in a selective manner, and the positioning cylinder is hingedly connected with the base.

[0012] In the underwater traction device, the traction body is provided with a nozzle on the inner side of the spring, the nozzle penetrating the bottom of the traction body and being in communication with the valve, the positioning cylinder is provided with a pull rod penetrating the bottom of the positioning cylinder, one end of the pull rod being sleeved on the nozzle and being detachably connected with the nozzle, the pull rod penetrating the bottom of the positioning cylinder and being in clearance fit with the positioning cylinder.

[0013] In the underwater traction device, the pull rod is provided with a light rod portion in clearance fit with the positioning cylinder and a sleeve portion detachably connected with the nozzle, and the light rod portion, the sleeve portion and the nozzle are arranged in sequence.

[0014] In the underwater traction device, a limiting structure is arranged between the traction body and the positioning cylinder for limiting the relative rotation of the traction body and the positioning cylinder, and the inner side of the sleeve is detachably screwed with the outer side of the nozzle.

[0015] Compared with the prior art, the scheme of the present application has the following advantages:

[0016] In the underwater traction device, the traction body is connected with one end of the flexible sensor chain, the traction body is inserted into the positioning cylinder of the base, after the traction body is completely inserted into the positioning cylinder, the spring between the traction body and the bottom of the positioning cylinder is compressed, then the plug is used to penetrate the side wall of the positioning cylinder, and the plug is connected with the traction body in a plug-in manner, so that the installation of the traction body is completed, after the plug and the base are connected with the hoisting cable respectively, the base is lowered to the preset water depth, the hoisting cable connected with the plug is wound up, the plug on the traction body is pulled out, the spring restores the deformation, and the traction body is pushed out of the positioning cylinder, in the moving process of the traction body, the driving module on the traction body is triggered through pressure sensing, mechanical impact or timing, the traction body is driven to move horizontally under water through the driving module, and the flexible sensor chain is pulled.

[0017] Additional aspects and advantages of the present application will be set forth in part in the following description, will become apparent from the description, or will be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0019] Figure 1 It is a structural schematic view of the underwater traction device in an embodiment of the present application;

[0020] Figure 2 It is a side view of the underwater traction device in an embodiment of the present application;

[0021] Figure 3 It is a side view of the positioning cylinder and the tray in an embodiment of the present application;

[0022] Figure 4 It is a structural sectional view of the traction body in an embodiment of the present application;

[0023] Figure 5 It is an assembly schematic view of the traction body and the positioning cylinder in an embodiment of the present application.

[0024] The drawings show:

[0025] 11, support frame; 12, tray; 121, folded edge; 122, second avoiding groove; 123, positioning pin;

[0026] 13. Positioning cylinder; 131. Adjusting plate; 1311. Connecting hole; 132. Pin; 133. Spring; 134. Pull rod; 135. First clearance groove; 136. Strip hole; 137. Handle; 14. Fixing block;

[0027] 31. Wing plate; 311. Connecting lug; 32. Trigger; 33. Nozzle; 34. Gas tank; 35. Valve. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] like Figures 1-5 As shown, the present invention provides an underwater towing device, including a base 1; the base 1 is provided with an inclined positioning cylinder 13, the top of the positioning cylinder 13 is open, and also includes a towing body 3 for connecting with a chain, a drive module for driving the towing body 3 to move in the water, and a trigger 32 for triggering the drive module, all disposed inside the positioning cylinder 13; the positioning cylinder 13 is provided with a spring 133 for ejecting the towing body 3, the spring 133 is located between the bottom of the positioning cylinder 13 and the towing body 3, the towing body 3 is provided with a pin 132, the pin 132 is pluggably connected to the towing body 3, and penetrates one side inner wall of the positioning cylinder 13.

[0030] In specific implementation, when the trigger 32 is a pressure sensor, the spring 133 pops out the traction body 3, and the pressure exerted by the spring 133 on the traction body 3 changes. The pressure sensor detects the pressure change and acts as a switch to generate a start signal. When the trigger 32 is a vibration sensor, the spring 133 pops out the traction body 3, and the traction body 3 moves inside the positioning cylinder 13. The vibration sensor detects the friction, shaking, and impact between the traction body 3 and the positioning cylinder 13 and generates a start signal. When the trigger 32 is a timer, after the timer reaches the preset time point, the drive module is started, and at the same time, the pin 132 is pulled out through the suspension cable, causing the traction body 3 to pop out from the positioning cylinder 13. This embodiment does not impose too many restrictions on the type of trigger 32.

[0031] In addition to pulling chains, such as the flexible sensor chain 2, the traction body 3 can also pull products such as wires and ropes. This embodiment does not impose too many restrictions on this.

[0032] One end of the spring 133 is fixedly connected to the bottom of the positioning cylinder 13, and the other end abuts against the traction body 3 to prevent the spring 133 from detaching from the positioning cylinder 13 after being ejected from the traction body 3.

[0033] As Figure 3 shown, the specific structure of the drive module is that the drive module comprises a gas storage tank 34 and a valve 35 for storing high-pressure gas; the gas storage tank 34 and the valve 35 are arranged in the traction body 3, the valve 35 is in communication with the outside of the traction member and the gas storage tank 34, and the valve 35 is located between the bottom of the positioning cylinder 13 and the gas storage tank 34; the trigger member 32 is arranged on the valve 35.

[0034] The specific way of the trigger member 32 opening the valve 35 is that, as Figure 4 shown, a strip-shaped hole 136 extending along the axis of the positioning cylinder 13 is formed in the side wall of the positioning cylinder 13, the trigger member 32 is connected with the valve core of the valve 35 and can reciprocate along the axis of the positioning cylinder 13; the trigger member 32 penetrates through one side wall of the traction body 3 and is inserted into the strip-shaped hole 136.

[0035] As shown in Figure 2 and Figure 4 shown, the principle of the trigger member 32 opening the valve 35 is that the trigger member 32 is a rigid member, the trigger member 32 is inserted into the strip-shaped hole 136 and cooperates with the strip-shaped hole 136, when the spring 133 is ejected from the traction body 3, the trigger member 32 abuts against one end of the strip-shaped hole 136 adjacent to the opening of the positioning cylinder 13, with the continuous pushing of the spring 133, the trigger member 32 rotates on the valve 35 until it completely separates from the strip-shaped hole 136, the trigger member 32 drives the valve core of the valve 35 to rotate, so that the valve 35 is opened, the high-pressure gas in the gas storage tank 34 is ejected, through the interaction with the water body, the traction body 3 is provided with power, the synchronous starting of the spring 133 and the drive module is achieved, the best launching effect is achieved, the traction body 3 moves, the flexible sensor chain 2 is straightened, the flexible sensor chain 2 can be stretched in the horizontal direction, the area covered by the stretching is monitored, when the high-pressure gas in the gas storage tank 34 is ejected, the traction body 3 stops moving, the detection is ended, and the recovery is performed.

[0036] In some embodiments, in addition to the combination structure of the gas storage tank 34 and the valve 35, a combination structure of a propeller, a battery and a motor can also be used for replacement, in the implementation application, the motor and the battery are arranged in the traction body 3, the motor is connected with the propeller to drive the rotation of the propeller, the propeller is arranged between the traction body 3 and the bottom of the positioning cylinder 13 and is rotationally matched with the traction body 3, the battery and the motor form a loop, the trigger member 32 controls the on-off of the loop, and the start-stop of the propeller is realized.

[0037] Compared with other drive structures, the combination structure of the gas storage tank 34 and the valve 35 only uses a pure mechanical structure, can avoid the use of an electric circuit, reduces the requirement for waterproof sealing performance, improves the stability and durability, and reduces the product weight and volume, and reduces the difficulty of hanging and placing.

[0038] As Figure 4As shown, further improvement, the inner wall of the positioning cylinder 13 is provided with a first avoiding slot 135, the first avoiding slot 135 extends to the opening of the positioning cylinder 13, and penetrates the opening edge of the positioning cylinder 13.

[0039] The first avoiding slot 135 is arranged on the positioning cylinder 13, so that the flexible sensor chain 2 can be connected to different positions of the traction body 3 through the first avoiding slot 135, that is, the flexible sensor chain 2 can be connected to the head of the traction body 3, or the tail of the traction body 3, or any position between the head and the tail of the traction body 3, and the traction body 3 is emitted from the positioning cylinder 13, so that the flexible sensor chain 2 is separated from the positioning cylinder 13 at the opening end of the first avoiding slot 135.

[0040] As shown in Figure 1 , Figure 2 and Figure 3 , preferably, the outer surface of the traction body 3 is provided with a wing plate 31, a connecting lug 311 for connecting the chain is arranged on the wing plate 31, the connecting lug 311 is provided with a connecting hole 1311, the connecting hole 1311 is connected with one end of the chain, and the connecting lug 311 is located in the first avoiding slot 135 and can slide back and forth along the first avoiding slot 135.

[0041] Further preferably, the wing plate 31 is provided with four wing plates 31, and the four wing plates 31 are arranged in a circular manner with the axis of the traction body 3 as the center, so that the traction body 3 has better stability, improves the moving accuracy and anti-interference performance of the traction body 3, and the connecting lug 311 is arranged on one of the wing plates 31. The number of wing plates 31 is not limited in this embodiment.

[0042] The traction body 3 is specifically a streamline structure, that is, the head, the tail and the side surface of the traction body 3 are curved surfaces, so as to reduce the resistance in water movement, and the wing plate 31 is arranged on the side surface of the traction body 3 and extends to the tail along the axis of the traction body 3 to the bottom between the positioning cylinder 13 and the traction body 3.

[0043] As shown in Figure 1 and Figure 2 , further improvement of this embodiment, the base 1 is provided with a tray 12 and a positioning pin 123 for winding the chain on the tray 12; the positioning pin 123 is provided with at least three and arranged in a circular array with the center of the positioning cylinder 13.

[0044] The positioning pin 123 is arranged in a circular array on the tray 12, and the flexible sensor chain 2 to be laid is wound outside the three positioning pins 123 of the tray 12, so that when the base 1 is lowered to a predetermined water depth, the flexible sensor to be laid is also lowered to the same predetermined water depth, which prevents the flexible sensor chain 2 from being knotted and avoids that the flexible sensor chain 2 to be laid has too large height difference, which affects the laying accuracy.

[0045] In some embodiments, the tray 12 can also be replaced by a grid frame, and the positioning pin 123 is arranged on the grid frame, and the embodiments are not limited in this regard.

[0046] In actual use, the axis of the tray 12 and the positioning cylinder 13 can be arranged perpendicular to each other or at an acute angle, preferably, the tray 12 is arranged perpendicular to the horizontal plane, so that the base 1 structure is optimized, and assembly interference between the tray 12 and the hoisting cable is avoided.

[0047] There are two ways to fix the flexible sensor chain 2 on the tray 12, the first way is to use a ring-shaped rubber band to wrap the positioning pin 123, and the flexible sensor chain 2 passes through the ring-shaped rubber band and is fixed on the positioning pin 123 through the ring-shaped rubber band, the second way is to provide a folding edge 121 at the outer edge of the tray 12, the folding edge 121 is on the same side of the tray 12 as the positioning pin 123, and the flexible sensor chain 2 is coiled on the tray 12 to form a ring, the inner side of the ring-shaped flexible sensor chain abuts against the positioning pin 123, and the outer side abuts against the folding edge 121.

[0048] In some embodiments, the tray 12 has a frustoconical structure, the thin end of the tray 12 is located between the opening of the positioning cylinder 13 and the thick end of the tray 12, and the folding edge 121 is arranged on the thick end edge of the tray 12, thereby reducing the risk of knotting of the flexible sensor chain 2.

[0049] As shown in Figure 2 Another improvement is that a traction rope 4 is arranged between the traction body 3 and the flexible sensor chain 2, and the two ends of the traction rope 4 are connected with the flexible sensor chain 2 and the traction body 3 respectively, so that excessive bending of the flexible sensor chain 2 is avoided under the connection of the traction rope 4.

[0050] In actual use, a second avoiding groove 122 is formed in the tray 12, and one end of the second avoiding groove 122 extends to the positioning cylinder 13 and is arranged in an open manner.

[0051] As shown in Figure 1 The arrangement of the second avoiding groove 122 allows the flexible sensor chain 2 coiled on the tray 12 to pass through the second avoiding groove 122 and be connected to different axial positions of the traction body 3, and the second avoiding groove 122 has a limiting and guiding effect, thereby avoiding the flexible sensor chain 2 from being knotted when winding on the tray 12.

[0052] Preferably, the second avoiding groove 122 is arranged opposite to the first avoiding groove 135 to reduce the connection distance of the flexible sensor chain 2 and the traction body 3.

[0053] In specific implementation, the positioning cylinder 13 can be placed horizontally in addition to being arranged at an angle, and the embodiments are not limited in this regard.

[0054] Further preferably, when the positioning cylinder 13 is arranged at an angle, the angle of the positioning cylinder 13 is 15-20°.

[0055] As a further improvement of the embodiment, the base 1 is provided with a fixing block 14, the outer wall of the positioning cylinder 13 is provided with an arc-shaped adjusting plate 131 and a plurality of connecting holes 1311 arranged on the adjusting plate 131 in an arc-shaped path, the fixing block 14 is detachably connected with the connecting holes 1311 in a selective manner, and the positioning cylinder 13 is hinged to the base 1.

[0056] The fixing block 14 and the adjusting plate 131 are matched with each other, so that the inclination angle of the positioning cylinder 13 is adjustable, the positioning cylinder 13 is hinged to the base 1, the positioning cylinder 13 is swung on the base 1 to drive the connecting holes 1311 on the adjusting plate 131 to rotate synchronously, so that each connecting hole 1311 can be connected with the fixing block 14, and the positioning cylinder 13 is fixed relative to the base 1 after the fixing block 14 is connected with the corresponding connecting hole 1311.

[0057] The fixing block 14 and the connecting hole 1311 can be connected by bolts or pins, and the embodiment does not make too many limitations in this regard.

[0058] The base 1 is provided with a support frame 11 for suspending the positioning cylinder 13 above the base 1, and the support frame 11 is hinged to the positioning cylinder 13.

[0059] In combination with Figure 2 and Figure 3 shown, the embodiment is further improved, the traction body 3 is provided with a nozzle 33 located on the inner side of the spring 133, the nozzle 33 penetrates the bottom of the traction body 3 and is in communication with a valve 35, the positioning cylinder 13 is provided with a pull rod 134 penetrating the bottom of the positioning cylinder 13, one end of the pull rod 134 is sleeved on the nozzle 33 and detachably connected with the nozzle 33, and the pull rod 134 penetrates the bottom of the positioning cylinder 13 and is in clearance fit with the positioning cylinder 13.

[0060] The process of compressing the spring 133 by the traction body 3 is as follows: the pull rod 134 is detachably connected with the nozzle 33 on the traction body 3, the pull rod 134 is pulled in the direction from the opening of the positioning cylinder 13 to the bottom, the pull rod 134 drives the traction body 3 to move towards the bottom of the positioning cylinder 13, so as to compress the spring 133.

[0061] The specific structure of the lead screw is that the pull rod 134 is provided with a light rod portion in clearance fit with the positioning cylinder 13 and a sleeve portion detachably connected with the nozzle 33, and the light rod portion, the sleeve portion and the nozzle 33 are arranged in sequence.

[0062] The traction body 3 and the positioning cylinder 13 are provided with a limiting structure for limiting the relative rotation therebetween, and the specific connection manner of the sleeve portion and the nozzle 33 is that the inner side of the sleeve is detachably threadedly connected with the outer side of the nozzle 33.

[0063] The limiting structure comprises a connecting lug 311 arranged on the traction body 3 and a first avoiding slot 135 arranged on the positioning cylinder 13, and the connecting lug 311 is inserted into the first avoiding slot 135.

[0064] In some embodiments, the limiting structure can also adopt a second structure, which specifically comprises a groove arranged on the traction body 3 and a protrusion arranged on the inner wall of the positioning cylinder 13, the protrusion is inserted into the groove and reciprocally slides along the groove, and the two ends of the groove are arranged in an open manner.

[0065] In the operation, the pull rod 134 is pulled to drive the light rod part to move, the light rod part passes through the bottom of the positioning cylinder 13, the spring 133 is compressed, and a cooperation gap for the rotation of the pull rod 134 is arranged between the light rod part and the positioning cylinder 13, the traction body 3 and the positioning cylinder 13 cannot rotate relative to each other under the action of the limiting structure, when the pull rod 134 is manually rotated, the traction body 3 and the sleeve are relatively rotated along the thread, the nozzle 33 is separated from the sleeve, and the pull rod 134 is prevented from pulling the traction body 3 when the traction body 3 is pulled out, so as to prevent the traction body 3 from being hindered.

[0066] The handle 137 is arranged on the pull rod 134 and located outside the traction body 3, and the handle 137 is fixedly connected with the pull rod 134.

[0067] The specific working process of the underwater horizontal arrangement of the flexible sensor chain 2 is as follows:

[0068] Step one: after the traction body 3 is assembled, the gas tank 34 in the traction body 3 is inflated, the pressure at different water depths is calculated according to the pressure calculation formula, the high-pressure gas with a corresponding pressure is selected according to the pressure at different water depths, the underwater gravity of the flexible sensor chain 2 and the horizontal arrangement length of the flexible sensor chain 2, and generally the gas pressure slightly higher than the required pressure is selected to ensure that the arrangement operation achieves the target;

[0069] Step two: one end of the flexible sensor chain 2 is connected to the data acquisition device, and then the flexible sensor chain 2 is uniformly coiled on the tray 12 of the base 1, the positioning pin 123 on the tray 12 can position the flexible sensor chain 2 according to the bending radius of the flexible sensor chain 2, and the other end of the flexible sensor chain 2 is connected to the connecting lug 311 on the traction body 3 through the traction rope 4;

[0070] Step three: the traction body 3 is connected with the pull rod 134, the pull rod 134 is pulled to drive the traction body 3 to move towards the bottom of the positioning cylinder 13 and pre-press the spring 133, and after the pre-pressing of the spring 133 is completed, the traction body 3 is fixed on the positioning cylinder 13 by using the plug pin 132;

[0071] Step four: after the traction body 3 is installed in the positioning cylinder 13, the positioning cylinder 13 is rotated, and the angle of the positioning cylinder 13 is fixed by the fixed block 4 and the adjusting plate 131.

[0072] Step five: after the inclination angle of the positioning cylinder 13 is adjusted, the base 1 is hoisted underwater, and the traction body 3 is placed in the designated water depth area. After the placement is completed, the latch 132 on the traction body 3 is pulled out by the recovery action of the hoisting cable. After the latch 132 is pulled out, the traction body 3 is ejected from the positioning cylinder 13 by the pre-pressing force of the spring 133. The trigger 32 rotates on the valve 35 until it completely separates from the strip-shaped hole 136. The trigger 32 triggers the valve 35 switch, and the high-pressure gas in the gas storage tank 34 is ejected. The gas storage tank 34 generates a gas propulsion force through the pipeline, the valve 35, and the nozzle 33, so that the traction body 3 is ejected and moved along the inclination angle of the positioning cylinder 13, and the flexible sensor chain 2 is pulled to complete the underwater horizontal layout work.

[0073] The working principle of the technical solution is that the traction body 3 is connected to one end of the flexible sensor chain 2, the traction body 3 is inserted into the positioning cylinder 13 of the base 1, the spring 133 between the traction body 3 and the bottom of the positioning cylinder 13 is compressed after the traction body 3 is completely inserted into the positioning cylinder 13, and then the latch 132 is used to penetrate the side wall of the positioning cylinder 13 and is connected to the traction body 3 in a pluggable manner to complete the installation of the traction body 3. After the latch 132 and the base 1 are connected to the hoisting cable, the base 1 is lowered to the preset water depth, the hoisting cable connected to the latch 132 is retracted, the latch 132 on the traction body 3 is pulled out, the spring 133 restores the deformation, and the traction body 3 is pushed out of the positioning cylinder 13. During the movement of the traction body 3, the driving module on the traction body 3 is triggered by pressure sensing, mechanical impact, or timing. The traction body 3 is driven by the driving module to move horizontally underwater, pulls the flexible sensor chain 2, and the inclined launched traction body 3 receives a vertical component force and a horizontal component force. The horizontal component force provides power for the horizontal advancement of the traction body 3, and the vertical component force provides power for the upward floating of the traction body 3. Since the traction body 3 floats and advances in the water, it is not like a wheeled vehicle walking on the seabed, maintaining a distance from the seabed to avoid terrain undulation interference, so that the flexible sensor chain 2 can be laid straight.

[0074] To sum up, in the marine underwater environment, the traction body 3 in the technical solution can adapt to different water depth environments and marine environments by adjusting the gas pressure in the gas storage tank 34, and complete the horizontal layout operation of the flexible chain; wherein, by using the recovery action of the laying cable, the bolt 132 is pulled out, the traction body 3 is triggered to move, the flexible sensor chain 2 is driven to realize traction and straightening, the release action is simple, stable and efficient, the structure is simple, the failure probability is low, and the device can be deployed in complex marine environments; in addition, the adjusting plate 131 and the fixed block 14 in the technical solution cooperate with each other, can flexibly adjust the inclination angle of the positioning cylinder 13 according to different layout requirements, and have good expansibility; relatively, the device has relatively low cost, does not involve expensive electronic components or complex control mode, adopts ingenious mechanical structure and pneumatic scheme design to realize the underwater horizontal layout operation of the flexible chain, and has great application value.

[0075] The above only describes some embodiments of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. An underwater towing device comprising a base; said base is provided with a positioning cylinder arranged obliquely, the top of said positioning cylinder is arranged as an open top, characterized in that, Also include the setting in the positioning cylinder for connecting with the chain traction body, set in the traction body for driving the traction body in the water drive module and the trigger for triggering the drive module; The positioning cylinder is provided with a spring for ejecting the traction body, and the spring is located between the bottom of the positioning cylinder and the traction body. The latch is provided on the traction body, and the latch is pluggable connected with the traction body, and penetrates one side of the inner wall of the positioning cylinder; The drive module includes a gas tank for storing high pressure gas and a valve; The gas tank and the valve are arranged in the traction body, the valve is in communication with the outside of the traction body, and the valve is in communication with the gas tank; The valve is located between the bottom of the positioning cylinder and the gas tank; The trigger is arranged on the valve; The side wall of the positioning cylinder is provided with a strip-shaped hole extending along the axis of the positioning cylinder, the trigger is connected with the valve core of the valve, and can reciprocate along the axis of the positioning cylinder; The trigger penetrates one side of the side wall of the traction body, and is inserted into the strip-shaped hole.

2. The underwater towing arrangement according to claim 1, characterized in that The inner wall of the positioning cylinder is provided with a first avoiding groove, the first avoiding groove extends to the opening of the positioning cylinder, and penetrates the opening edge of the positioning cylinder.

3. The underwater tow device of claim 1, wherein, The base is provided with a tray, a positioning pin for winding the chain on the tray; The positioning pin is provided with at least three, and is arranged in a circular array with the center of the positioning cylinder.

4. The underwater towing arrangement according to claim 3, characterized in that The tray is provided with a second avoiding groove, one end of the second avoiding groove extends to the positioning cylinder, and is arranged in an open manner.

5. The underwater tow device of claim 1, wherein, The base is provided with a fixed block, the outer wall of the positioning cylinder is provided with an adjusting plate, a plurality of connecting holes on the adjusting plate, a plurality of connecting holes are arranged along the arc path, the fixed block is detachably connected with the connecting hole in a selective manner, and the positioning cylinder is hinged with the base.

6. The underwater tow device of claim 1, wherein, The traction body is provided with a nozzle on the inner side of the spring, the nozzle penetrates the bottom of the traction body, and is in communication with the valve; The positioning cylinder is provided with a pull rod penetrating the bottom of the positioning cylinder, one end of the pull rod is sleeved on the nozzle, and the pull rod is detachably connected with the nozzle, the pull rod penetrates the bottom of the positioning cylinder, and is gap matched with the positioning cylinder.

7. The underwater towing arrangement according to claim 6, characterized in that The pull rod is provided with a light rod part gap matched with the positioning cylinder, and a sleeve part detachably connected with the nozzle; The light rod part, the sleeve part and the nozzle are arranged in sequence.

8. The underwater towing arrangement according to claim 7, characterized in that The traction body and the positioning cylinder are provided with a limiting structure for limiting the relative rotation of the traction body and the positioning cylinder; The inner side of the sleeve is detachably connected with the outer side of the nozzle in screw connection.

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