Low-tension dragging anchor cable capturing and positioning device

Abstract

The invention discloses a low-tension dragging anchor cable capturing and positioning device which comprises an upper buoyancy block wing plate, a lower buoyancy block wing plate, an underwater acoustic positioning beacon, an anchor cable guide plate and an anchor cable capturing and releasing mechanism. The anchor cable catching and releasing mechanism comprises a catching component and a dragging component, and the catching component and the dragging component are detachably connected. The top of the upper buoyancy block wing plate is installed on the dragging component, and the upper buoyancy block wing plate is connected with the dragging platform through a mooring rope. The top of the wing plate of the lower buoyancy block is mounted on the capturing component; the catching part is used for catching the anchor cable, and the dragging part is used for being separated from the catching part when catching the anchor cable and continuously moving along with the dragging platform; the anchor cable guide plate is mounted on the capturing component and is used for guiding the anchor cable when the anchor cable is captured; the underwater acoustic positioning beacon is mounted at the end part of the capturing part and is used for positioning the captured position of the anchor cable; the invention can solve the problems of low capturing and positioning efficiency and complex and huge system of the current deep sea mooring object.

Description

Technical Field

[0001] The present invention belongs to the technical field of rapid capture and positioning of deep - sea mooring objects, and particularly relates to a mooring cable capture and positioning device with low - tension towing. Background Art

[0002] The demand for detecting, capturing and positioning marine suspicious objects is increasing, especially the rapid detection, capture and positioning of deep - sea dangerous objects have received more and more attention. Generally speaking, the capture and positioning of deep - sea mooring objects are mainly carried out in the following steps: First, a towed body equipped with a sonar is towed by a ship to conduct a rough bottom - sweeping detection of underwater suspicious objects. When a suspicious object is found, a rough position mark will be made. Then, small detection devices such as AUVs are deployed from the ship within the range of the suspicious object's position for underwater precise positioning and identification. Finally, ROVs etc. are used to approach for observation, capture and perform capture positioning or disposal. This method has the following problems:

[0003] 1. The deployment time of large underwater operation equipment is long and the operation process is complex. After the AUV and other detection sonars precisely locate the suspicious object, deploying capture and disposal equipment such as ROVs to carry out underwater operations will undoubtedly lead to low operation efficiency. Especially when conducting detection and capture operations in the deep sea of several thousand meters, the deployment and operation process of equipment such as ROVs to approach the suspicious object often takes several hours to complete;

[0004] 2. When using large platforms such as ships for deep - sea towing mooring cable capture or disposal, in order to avoid the equipment being hooked, the equipment is often large in weight and volume, and a large enough towing force is required to complete such tasks. Summary of the Invention

[0005] In view of this, the present invention provides a mooring cable capture and positioning device with low - tension towing, which is applicable to the capture and positioning of mooring cables of deep - sea mooring objects with low towing forces such as AUVs, and can solve the problems of low efficiency and complex and large - scale systems in the current capture and positioning of deep - sea mooring objects.

[0006] The present invention is realized through the following technical solutions:

[0007] A mooring cable capture and positioning device with low - tension towing includes: an upper buoyancy block wing plate, a lower buoyancy block wing plate, an underwater acoustic positioning beacon, a mooring cable guide plate, and a mooring cable capture and release mechanism;

[0008] The mooring cable capture and release mechanism includes a capture component and a towing component, and the capture component and the towing component are detachably connected and can be separated from each other;

[0009] The top of the upper buoyancy block wing plate is mounted on the towing component, and the upper buoyancy block wing plate is connected to the towing platform by a cable; the top of the lower buoyancy block wing plate is mounted on the capturing component; the bottoms of the upper buoyancy block wing plate and the lower buoyancy block wing plate are both wedge-shaped plates, and the upper buoyancy block wing plate and the lower buoyancy block wing plate form a complete wing plate; this complete wing plate is used to make the anchor cable capturing and positioning device in a zero buoyancy state underwater;

[0010] The capturing component is used to capture the anchor cable, and the towing component is used to separate from the capturing component when the anchor cable is captured and continue to move with the towing platform;

[0011] The anchor cable guide plate is mounted on the capturing component and is used to guide the anchor cable when capturing the anchor cable; the underwater acoustic positioning beacon is mounted at the end of the capturing component and is used to position the position of the captured anchor cable.

[0012] Further, the capturing component includes: a mechanism base, a trigger, a torsion spring, a socket base and a lock plate;

[0013] The towing component includes: a cable sweeping connecting rod, a sliding rod, a socket base groove cover plate, a socket base spring, a sliding rod spring, a sliding rod spring plug, a locking pin, a locking pin spring and a locking spring plug;

[0014] A notch is machined on a side A of the mechanism base, the anchor cable guide plate is mounted on one side of the notch, the trigger is mounted on the other side of the notch through a pin shaft, and a torsion spring is mounted on the pin shaft; the trigger consists of two trigger blocks, namely trigger block A and trigger block B. Among them, trigger block A abuts against the lower end of the anchor cable guide plate under the action of the torsion spring to close the notch, and trigger block B extends out of side A and is located on side B adjacent to side A; the socket base and the lock plate are both welded and fixed on side B of the mechanism base;

[0015] A U-shaped groove and a plate-shaped notch are machined on a side C of the cable sweeping connecting rod along the length direction of the cable sweeping connecting rod; the socket base spring is mounted in the U-shaped groove of the cable sweeping connecting rod, and the socket base spring end of the U-shaped groove is sealed with a socket base groove cover plate; when the cable sweeping connecting rod is mounted on the mechanism base, side C of the cable sweeping connecting rod is opposite to side B of the mechanism base, and the included angle between the length direction of the cable sweeping connecting rod and the length direction of the mechanism base is an acute angle; the socket base of the mechanism base cooperates with the U-shaped groove of the cable sweeping connecting rod; at the same time, the lock plate of the mechanism base cooperates with the plate-shaped notch of the cable sweeping connecting rod;

[0016] A longitudinal sliding rod hole for accommodating the sliding rod and a transverse locking pin hole for mounting the locking pin are machined on the cable sweeping connecting rod, and the longitudinal sliding rod hole communicates with the transverse locking pin hole; a waist-shaped guiding groove is machined on the outer circumferential surface of the sliding rod, and a radial waist-shaped through hole communicating with the waist-shaped guiding groove is machined on the sliding rod;

[0017] The sliding rod is coaxially installed in the longitudinal sliding rod hole of the cable sweeping connecting rod. One end of the sliding rod is equipped with a sliding rod spring, and the sliding rod spring is limited by a sliding rod spring plug; the locking pin is coaxially installed in the transverse locking pin hole of the cable sweeping connecting rod. One end of the locking pin is equipped with a locking pin spring, and the locking pin spring is limited by a locking spring plug.

[0018] Furthermore, when the entire cable anchor capturing and positioning device is assembled completely and in the locked state, the tip of the trigger block B of the trigger abuts against the stepped surface provided in the middle of the sliding rod. Under the combined action of the trigger block B of the trigger and the sliding rod, the sliding rod spring is in a compressed state, and the pressing force can be adjusted by adjusting the sliding rod spring plug; at the same time, the other end of the locking pin passes through the locking hole provided on the locking plate, contacts and is limited by the bottom of the waist-shaped guiding groove of the sliding rod, so that the locking pin spring is in a compressed state, and the pressing force can be adjusted by adjusting the locking spring plug. The locking pin, the locking plate and the locking pin spring form a bolt locking mechanism; when the locking pin can pass through the locking plate, the bolt seat slides into the groove-shaped closed space formed by the bolt seat groove cover plate and the U-shaped groove of the cable sweeping connecting rod, and the bolt seat spring is in a compressed state. The bolt seat, the bolt seat groove cover plate, the cable sweeping connecting rod and the bolt seat spring also form a bolt locking mechanism; the two bolt locking mechanisms realize the detachable connection between the cable sweeping connecting rod and the mechanism base.

[0019] Furthermore, the towing component further includes a positioning pin;

[0020] Two opposite groove-shaped holes communicating with the longitudinal sliding rod hole are also machined on the cable sweeping connecting rod; a radial positioning pin hole is also machined on the sliding rod;

[0021] The positioning pin is installed in the positioning pin hole of the sliding rod, and both ends of the positioning pin extend out of the outer circumferential surface of the sliding rod and are respectively placed in the two groove-shaped holes of the cable sweeping connecting rod and are in sliding fit with the groove-shaped holes.

[0022] Furthermore, the upper buoyancy block wing plate is fixed on the cable sweeping connecting rod, the lower buoyancy block wing plate is fixed on the mechanism base, and the underwater acoustic positioning beacon is fixed at the end of the mechanism base.

[0023] Furthermore, it further includes a flap; the flap is fixed to the bottom of the upper buoyancy block wing plate.

[0024] Beneficial effects:

[0025] (1) The present invention provides a cable capture and positioning device with low towing tension, that is, a device for intercepting, capturing and positioning deep-sea anchor cables with relatively low towing tension requirements. It is applicable to platforms with weak deep-sea towing capabilities for deep-sea towing anchor object disposal, and is applied to the field of rapid interception, capture and positioning of deep-sea anchor cables with low-towing-force towing platforms such as AUVs. This device is equipped with a cable capture and release mechanism, which includes a capture component and a towing component. The capture component and the towing component are detachably connected and can be separated. The capture component is used to capture the cable, and the towing component is used to separate from the capture component when the cable is captured and continue to move with the towing platform. This device is also equipped with an underwater acoustic positioning beacon for positioning the captured cable. Ultimately, the present invention can achieve low-tension interception, capture and positioning of deep-sea anchor cables, solve the problems of low efficiency and complex and large system in the current capture and positioning of deep-sea anchor objects, and can greatly improve the operation efficiency of deep-sea anchor object capture and disposal.

[0026] (2) The present invention is suitable for being carried by small deep-sea platforms with low towing force such as AUVs. The capture component of the cable capture and release mechanism is triggered by a trigger mechanism composed of a trigger and a torsion spring. Only a small interception tension is required to activate the device, effectively capturing the cable quickly and positioning it in real time. During the implementation process, the device can achieve rapid mechanical separation from the towing platform through the separation of the capture component and the towing component, minimizing the impact on the towing platform to the greatest extent and ensuring the safety of the towing platform. This device also has fluid performance, with stable movement during towing and high implementation reliability, and can better match platforms with weak towing capabilities such as AUVs for deep-sea anchor object disposal.

[0027] (3) The present invention also includes flaps, which are fixed to the bottom of the upper buoyancy block wing plates. The attitude of the cable capture and positioning device can be adjusted by flaps of different models during towing. Description of the Drawings

[0028] Figure 1 is the overall structural composition diagram of the present invention;

[0029] Figure 2 is the structural composition diagram of the cable capture and release mechanism of the present invention;

[0030] Figure 3 is the structure diagram of the mechanism base of the present invention;

[0031] Figure 4 is the cooperation diagram of the cable sweeping connecting rod and the trigger of the present invention;

[0032] Figure 5 is the structure diagram of the sliding rod of the present invention;

[0033] Figure 6 is the structure diagram of the cable sweeping connecting rod of the present invention;

[0034] Figure 7 For the cooperation of the search connecting rod of the present invention with the bolt seat and the bolt seat spring Figure 1 ;

[0035] Figure 8 For the cooperation of the search connecting rod of the present invention with the bolt seat and the bolt seat spring Figure 2 ;

[0036] Figure 9 Assembly complete and in locked state diagram of the cable anchor capturing and positioning device of the present invention;

[0037] Figure 10 Schematic diagram of capturing the cable anchor of the present invention;

[0038] Figure 11 Diagram of the mechanism base and the search connecting rod of the present invention in a disengaged state;

[0039] Among them, 1 - upper buoyancy block wing plate, 2 - lower buoyancy block wing plate, 3 - flap, 4 - underwater acoustic positioning beacon, 5 - cable anchor guide plate, 6 - cable anchor capturing and releasing mechanism, 7 - mechanism base, 8 - search connecting rod, 9 - trigger, 10 - torsion spring, 11 - bolt seat, 12 - lock plate, 13 - sliding rod, 14 - positioning pin, 15 - bolt seat groove cover plate, 16 - bolt seat spring, 17 - sliding rod spring, 18 - sliding rod spring plug, 19 - locking pin, 20 - locking pin spring, 21 - locking spring plug. Specific embodiments

[0040] The following combines the drawings and gives embodiments to describe the present invention in detail.

[0041] This embodiment provides a cable anchor capturing and positioning device for low-tension towing. Refer to the attached Figure 1 , including: upper buoyancy block wing plate 1, lower buoyancy block wing plate 2, flap 3, underwater acoustic positioning beacon 4, cable anchor guide plate 5 and cable anchor capturing and releasing mechanism 6;

[0042] The cable anchor capturing and releasing mechanism 6 includes a capturing component and a towing component. The capturing component and the towing component are detachably connected and can be separated from each other;

[0043] The top of the upper buoyancy block wing plate 1 is installed on the towing component, and the upper buoyancy block wing plate 1 is connected to the towing platform through a cable; the top of the lower buoyancy block wing plate 2 is installed on the capturing component. The bottoms of the upper buoyancy block wing plate 1 and the lower buoyancy block wing plate 2 are both wedge-shaped plates; the upper buoyancy block wing plate 1 and the lower buoyancy block wing plate 2 form a complete wing plate; this complete wing plate is used to make the cable anchor capturing and positioning device in a zero-buoyancy state underwater, facilitating stable towing; the flap 3 is fixed to the bottom of the upper buoyancy block wing plate 1 by screws, and the attitude of the cable anchor capturing and positioning device can be adjusted by flaps 3 of different models during towing;

[0044] The capturing component is used to capture the cable anchor, and the towing component is used to separate from the capturing component when the cable anchor is captured and continue to move with the towing platform.

[0045] The cable anchor guide plate 5 is an arc-shaped plate installed on the capturing component and used to guide the cable anchor when capturing the cable anchor. The underwater acoustic positioning beacon 4 is installed at the end of the capturing component and used to locate the position of the captured cable anchor.

[0046] Specifically, refer to the appendix Figure 2 The capturing component includes: a mechanism base 7, a trigger 9, a torsion spring 10, a bolt seat 11, and a locking plate 12; the towing component includes: a cable sweeping connecting rod 8, a sliding rod 13, a positioning pin 14, a bolt seat groove cover plate 15, a bolt seat spring 16, a sliding rod spring 17, a sliding rod spring plug 18, a locking pin 19, a locking pin spring 20, and a locking spring plug 21.

[0047] Refer to the appendix Figure 3 Refer to the appendix, a notch is machined on a side A of the mechanism base 7, the cable anchor guide plate 5 is installed on one side edge of the notch, the trigger 9 is installed on the other side edge of the notch through a pin shaft, and a torsion spring 10 is installed on this pin shaft. The trigger 9 and the torsion spring 10 form a trigger mechanism. The trigger 9 consists of two trigger blocks, namely trigger block A and trigger block B. Among them, trigger block A abuts against the lower end of the cable anchor guide plate 5 under the action of the torsion spring 10 to close the notch, and trigger block B extends out of side A and is located on side B adjacent to side A. The bolt seat 11 and the locking plate 12 are both welded and fixed on side B of the mechanism base 7.

[0048] Refer to the appendix Figure 4 and Figure 6 Refer to the appendix, a U-shaped groove and a plate-shaped notch are machined on a side C of the cable sweeping connecting rod 8 along the length direction of the cable sweeping connecting rod 8. The bolt seat spring 16 is installed in the U-shaped groove of the cable sweeping connecting rod 8, and the end of the U-shaped groove where the bolt seat spring 16 is located is sealed with the bolt seat groove cover plate 15. When the cable sweeping connecting rod 8 is installed on the mechanism base 7, side C of the cable sweeping connecting rod 8 faces side B of the mechanism base 7, and the included angle between the length direction of the cable sweeping connecting rod 8 and the length direction of the mechanism base 7 is an acute angle. Refer to the appendix Figure 7 and Figure 8 Refer to the appendix, the bolt seat 11 of the mechanism base 7 cooperates with the U-shaped groove of the cable sweeping connecting rod 8, that is, the bolt seat 11 of the mechanism base 7 is located in the U-shaped groove of the cable sweeping connecting rod 8 and can translate in the space surrounded by the U-shaped groove of the cable sweeping connecting rod 8 and the bolt seat groove cover plate 15. At the same time, the locking plate 12 of the mechanism base 7 cooperates with the plate-shaped notch of the cable sweeping connecting rod 8, that is, the locking plate 12 of the mechanism base 7 passes through the plate-shaped notch of the cable sweeping connecting rod 8 and can translate along the length direction of the plate-shaped notch of the cable sweeping connecting rod 8.

[0049] The search connecting rod 8 is machined with a longitudinal slide rod hole for accommodating the slide rod 13 and a transverse locking pin hole for installing the locking pin 19, and the longitudinal slide rod hole communicates with the transverse locking pin hole; two opposite groove-shaped holes communicating with the longitudinal slide rod hole are also machined on the search connecting rod 8; see the appendix Figure 5 On the outer circumferential surface of the slide rod 13, a waist-shaped guiding groove is machined, and a radial waist-shaped through hole communicating with the waist-shaped guiding groove is machined on the slide rod 13; a radial positioning pin hole is also machined on the slide rod 13;

[0050] The slide rod 13 is coaxially installed in the longitudinal slide rod hole of the search connecting rod 8, the positioning pin 14 is installed in the positioning pin hole of the slide rod 13, and both ends of the positioning pin 14 extend out of the outer circumferential surface of the slide rod 13 and are respectively placed in the two groove-shaped holes of the search connecting rod 8 and are in sliding fit with the groove-shaped holes to ensure that the slide rod 13 can move within a set range along the axis of the longitudinal slide rod hole in the longitudinal slide rod hole; wherein, one end of the slide rod 13 is installed with a slide rod spring 17, and the slide rod spring 17 is limited by a slide rod spring plug 18, that is, one end of the slide rod spring plug 18 is fixed in the longitudinal slide rod hole, and both ends of the slide rod spring 17 are respectively connected to the slide rod 13 and the slide rod spring plug 18;

[0051] The locking pin 19 is coaxially installed in the transverse locking pin hole of the search connecting rod 8, one end of the locking pin 19 is installed with a locking pin spring 20, and the locking pin spring 20 is limited by a locking spring plug 21, that is, one end of the locking spring plug 21 is fixed in the transverse locking pin hole, and both ends of the locking pin spring 20 are in contact with but not connected to the locking pin 19 and the locking spring plug 21 respectively;

[0052] When the entire cable anchor capture and positioning device is assembled completely and in a locked state, see the appendix Figure 9 The tip of the trigger block B of the trigger 9 abuts against the step surface, that is, the stop, provided in the middle of the slide rod 13. Under the combined action of the trigger block B of the trigger 9 and the slide rod 13, the slide rod spring 17 is in a compressed state, and the pressing force can be adjusted by adjusting the slide rod spring plug 18; at the same time, the other end of the locking pin 19 passes through the lock hole provided on the lock plate 12, contacts and limits the bottom of the waist-shaped guiding groove of the slide rod 13, so that the locking pin spring 20 is in a compressed state, and the pressing force can be adjusted by adjusting the locking spring plug 21. The locking pin 19, the lock plate 12 and the locking pin spring 20 form a bolt-locking mechanism; when the locking pin 19 can pass through the lock plate 12, at this time, the bolt seat 11 slides into the groove-shaped closed space formed by the bolt seat groove cover plate 15 and the U-shaped groove of the search connecting rod 8, and the bolt seat spring 16 is in a compressed state. The bolt seat 11, the bolt seat groove cover plate 15, the search connecting rod 8 and the bolt seat spring 16 also form a bolt-locking mechanism; the two bolt-locking mechanisms realize the detachable connection between the search connecting rod 8 and the mechanism base 7;

[0053] Specifically, the upper buoyancy block wing plate 1 is fixed to the cable sweeping connecting rod 8 by screws, the lower buoyancy block wing plate 2 is fixed to the mechanism base 7 by screws, and the underwater acoustic positioning beacon 4 is fixed to the end of the mechanism base 7.

[0054] Working principle:

[0055] During the towing process of the cable anchor capturing and positioning device, the entire device advances in a horizontal state, that is, the mechanism base 7 is in a horizontal state;

[0056] See attached Figure 10 , after the cable anchor is intercepted by the cable anchor guiding plate 5, the cable anchor will move along the cable sweeping connecting rod 8 to the notch of the cable anchor capturing and releasing mechanism 6. At the same time, under the action of the cable anchor guiding plate 5, the cable anchor touches the trigger block A of the trigger 9 and slides into the notch of the cable anchor capturing and releasing mechanism 6. The trigger 9 is reset under the action of the torsion spring 10, making the cable anchor unable to disengage, that is, the capture of the cable anchor is achieved.

[0057] See attached Figure 11 , during the process of achieving the capture of the cable anchor, when the cable anchor touches the trigger block A of the trigger 9, the trigger block B of the trigger 9 slides out of the stop notch of the slide bar 13 and disengages, no longer effectively limiting the slide bar 13. The slide bar 13 moves along the axis towards the other end of the slide bar 13 under the thrust of the slide bar spring 17. When the radial waist-shaped through hole of the slide bar 13 moves opposite to the other end end of the locking pin 19, the locking pin 19 will quickly pass through the locking hole of the locking plate 12 and pop out from the radial waist-shaped through hole of the slide bar 13 under the thrust of the locking pin spring 20, making the locking mechanism at this place ineffective.

[0058] In addition, when the locking function of the locking pin 19 and the locking plate 12 fails instantaneously, the bolt seat 11 will slide out of the closed space formed by the bolt seat groove cover plate 15 and the U-shaped groove of the cable sweeping connecting rod 8 under the thrust of the bolt seat spring 16, also making the locking mechanism at this place ineffective, so that the connecting rod 8 is completely disconnected from the mechanism base 7.

[0059] Finally, the mechanism base 7 and the bolt seat 11, locking plate 12, lower buoyancy block wing plate 2, underwater acoustic positioning beacon 4, cable anchor guiding plate 5, trigger 9, and torsion spring 10 on it will be detained on the cable anchor. The underwater acoustic positioning beacon 4 detained on the cable anchor locates the position of the cable anchor; the other parts that are disconnected, including the cable sweeping connecting rod 8, upper buoyancy block wing plate 1, flap 3, slide bar 13, positioning pin 14, bolt seat groove cover plate 15, bolt seat spring 16, slide bar spring 17, slide bar spring plug 18, locking pin spring 20, and locking spring plug 21, will move away with the towing platform. Among them, the locking pin 19 has popped out of the entire device.

[0060] In summary, the above are only the preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An anchor cable capture and positioning device with low-tension towing, characterized in that, Comprising: Upper buoyancy block wing plate, lower buoyancy block wing plate, underwater acoustic positioning beacon, cable anchor guide plate, and cable anchor capturing and releasing mechanism; The cable anchor capturing and releasing mechanism includes a capturing component and a towing component. The capturing component and the towing component are detachably connected and can be separated from each other; The top of the upper buoyancy block wing plate is mounted on the towing component, and the upper buoyancy block wing plate is connected to the towing platform through a cable; the top of the lower buoyancy block wing plate is mounted on the capturing component; the bottoms of the upper buoyancy block wing plate and the lower buoyancy block wing plate are both wedge-shaped plates, and the upper buoyancy block wing plate and the lower buoyancy block wing plate form a complete wing plate; This complete wing plate is used to make the cable anchor capturing and positioning device in a zero-buoyancy state underwater; The capturing component is used to capture the cable anchor, and the towing component is used to separate from the capturing component when the cable anchor is captured and continue to move with the towing platform; The cable anchor guide plate is mounted on the capturing component and is used to guide the cable anchor when capturing the cable anchor; the underwater acoustic positioning beacon is mounted at the end of the capturing component and is used to position the position of the captured cable anchor.

2. The low-tension towing cable anchor capture and positioning device according to claim 1, wherein The capturing component includes: mechanism base, trigger, torsion spring, bolt seat, and locking plate; The towing component includes: cable sweeping connecting rod, sliding rod, bolt seat groove cover plate, bolt seat spring, sliding rod spring, sliding rod spring plug, locking pin, locking pin spring, and locking spring plug; A notch is machined on a side A of the mechanism base. The cable anchor guide plate is mounted on one side edge of the notch. The trigger is mounted on the other side edge of the notch through a pin shaft, and a torsion spring is mounted on this pin shaft; the trigger consists of two trigger blocks, namely trigger block A and trigger block B. Among them, trigger block A abuts against the lower end of the cable anchor guide plate under the action of the torsion spring to close the notch, and trigger block B extends out of side A and is located on side B adjacent to side A; the bolt seat and the locking plate are both welded and fixed on side B of the mechanism base; A U-shaped groove and a plate-shaped notch are machined on a side C of the cable sweeping connecting rod along the length direction of the cable sweeping connecting rod; the bolt seat spring is mounted in the U-shaped groove of the cable sweeping connecting rod, and the end of the U-shaped groove where the bolt seat spring is located is sealed with a bolt seat groove cover plate; when the cable sweeping connecting rod is mounted on the mechanism base, side C of the cable sweeping connecting rod is opposite to side B of the mechanism base, and the included angle between the length direction of the cable sweeping connecting rod and the length direction of the mechanism base is an acute angle; the bolt seat of the mechanism base cooperates with the U-shaped groove of the cable sweeping connecting rod; at the same time, the locking plate of the mechanism base cooperates with the plate-shaped notch of the cable sweeping connecting rod; A longitudinal sliding rod hole for accommodating the sliding rod and a transverse locking pin hole for mounting the locking pin are machined on the cable sweeping connecting rod, and the longitudinal sliding rod hole communicates with the transverse locking pin hole; a waist-shaped guiding groove is machined on the outer circumferential surface of the sliding rod, and a radial waist-shaped through hole communicating with the waist-shaped guiding groove is machined on the sliding rod; The sliding rod is coaxially mounted in the longitudinal sliding rod hole of the cable sweeping connecting rod, and a sliding rod spring is mounted at one end of the sliding rod, and the sliding rod spring is limited by a sliding rod spring plug; the locking pin is coaxially mounted in the transverse locking pin hole of the cable sweeping connecting rod, and a locking pin spring is mounted at one end of the locking pin, and the locking pin spring is limited by a locking spring plug.

3. The cable anchor catching and positioning device with low-tension towing according to claim 2, characterized in that, When the entire cable anchor capture and positioning device is assembled completely and in a locked state, the tip of the trigger block B of the trigger abuts against the stepped surface provided in the middle of the slide rod. Under the combined action of the trigger block B of the trigger and the slide rod, the slide rod spring is in a compressed state, and the pressing force can be adjusted by adjusting the slide rod spring plug; at the same time, the other end of the locking pin passes through the locking hole provided in the locking plate, contacts the bottom of the kidney-shaped guide groove of the slide rod and is limited, so that the locking pin spring is in a compressed state, and the pressing force can be adjusted by adjusting the locking spring plug. The locking pin, the locking plate and the locking pin spring form a locking mechanism; when the locking pin can pass through the locking plate, the bolt seat slides into the groove-shaped closed space formed by the bolt seat groove cover plate and the U-shaped groove of the cable sweeping connecting rod, and the bolt seat spring is in a compressed state. The bolt seat, the bolt seat groove cover plate, the cable sweeping connecting rod and the bolt seat spring also form a locking mechanism; the two locking mechanisms realize the detachable connection between the cable sweeping connecting rod and the mechanism base.

4. A low-tension towing cable capture and positioning device according to claim 2, characterized in that, The towing component further includes a positioning pin; Two opposite groove-shaped holes communicating with the longitudinal slide rod hole are also machined on the cable sweeping connecting rod; a radial positioning pin hole is also machined on the slide rod; The positioning pin is installed in the positioning pin hole of the slide rod, and both ends of the positioning pin extend out of the outer circumferential surface of the slide rod and are respectively placed in the two groove-shaped holes of the cable sweeping connecting rod and are in sliding fit with the groove-shaped holes.

5. A cable anchor capture and positioning device for low-tension towing according to claim 2, characterized in that The upper buoyancy block wing plate is fixed on the cable sweeping connecting rod, the lower buoyancy block wing plate is fixed on the mechanism base, and the underwater positioning beacon is fixed at the end of the mechanism base.

6. A low-tension towing cable capture and positioning device according to any one of claims 1-5, characterized in that, It further includes a flap; the flap is fixed to the bottom of the upper buoyancy block wing plate.

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