CN114032872B - Mooring post cable releasing device and ship lock management and control system - Google Patents
Mooring post cable releasing device and ship lock management and control system Download PDFInfo
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- CN114032872B CN114032872B CN202111346202.8A CN202111346202A CN114032872B CN 114032872 B CN114032872 B CN 114032872B CN 202111346202 A CN202111346202 A CN 202111346202A CN 114032872 B CN114032872 B CN 114032872B
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- mooring
- tether
- bollard
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02C—SHIP-LIFTING DEVICES OR MECHANISMS
- E02C1/00—Locks or dry-docks; Shaft locks, i.e. locks of which one front side is formed by a solid wall with an opening in the lower part through which the ships pass
- E02C1/10—Equipment for use in connection with the navigation of ships in locks; Mooring equipment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
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- Engineering & Computer Science (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The embodiment of the invention provides a mooring post cable releasing device and a ship lock management and control system, and relates to the technical field of safe navigation of ship passing through a lock. The mooring bollard de-mooring device comprises a mooring rope supporting plate and a mooring rope assembly used for mooring ropes, wherein the mooring rope supporting plate is connected to the mooring rope assembly, and the mooring rope assembly is rotatably arranged on a bollard main body; the tether supporting plate is provided with a positioning part which is used for being matched with a positioning part on the mooring post main body to position the tether assembly; under the condition that location portion and setting element break away from mutually, the rope assembly can rotate relative to the bollard main part to the hawser breaks away from the rope assembly, is difficult for appearing the condition that hawser disconnection, rope device damage or boats and ships topple.
Description
Technical Field
The invention relates to the technical field of safe navigation of ship passing through a lock, in particular to a bollard mooring and releasing device and a lock management and control system.
Background
In the lock chamber, the ship is connected to the floating mooring post through a cable, and under the normal condition, when the lock chamber is filled with water and drained with water, the ship and the floating mooring post are lifted synchronously, the ship can slightly drift, and the mooring device is only pulled by horizontal force to restrain the ship.
When the floating mooring post is blocked and the lock chamber drains water, the ship moves down continuously along with the water surface, the ship tends to incline under the restraint of the mooring rope, and the original mooring rope device is over the limit under the action of the downward force of the mooring rope, so that the dangers of disconnecting the mooring rope, damaging the mooring rope device and even inclining the ship can occur.
Disclosure of Invention
The object of the present invention consists, for example, in providing a bollard de-hawser which solves the problems mentioned in the background.
It is also an object of the present invention to provide a ship lock management and control system, which can solve the problems mentioned in the background art.
Embodiments of the invention may be implemented as follows:
embodiments of the present invention provide a bollard de-hawser comprising a tether pallet and a tether assembly for mooring a line, the tether pallet being connected to the tether assembly, the tether assembly being rotatably disposed on a bollard body;
the tether supporting plate is provided with a positioning part which is used for being matched with a positioning part on the mooring post main body to position the tether assembly;
under the condition that the positioning part is separated from the positioning part, the tether assembly can rotate relative to the bollard main body, so that the cable is separated from the tether assembly.
Optionally, the tether assembly includes a tether post for tying a tether, a rod body, an elastic member, and a support seat, the support seat being disposed on the bollard body;
one end of the rod body is connected with the tether supporting plate, the rod body is slidably arranged on the support, and the positioning part is separated from the positioning part in the process that the rod body slides away from the positioning part;
the rope tying column is arranged on one side of the rope tying supporting plate, which is far away from the rod body;
the elastic piece is arranged between the support and the tether supporting plate and has a tendency of always enabling the tether supporting plate to move towards the side away from the support.
Optionally, the tether assembly further comprises a gasket, the gasket is sleeved on the rod body, and two ends of the elastic piece are respectively abutted to the gasket and the tether supporting plate.
Optionally, the packing ring is an elastic packing ring, a groove is formed in the rod body, and the elastic packing ring is used for enabling the rod body to be opposite to the sliding in-process card of the support to be clamped into the groove to prevent the elastic piece from restoring to deform.
Optionally, a strip-shaped hole is formed in the support, and a fixed shaft is arranged on the rod body;
the fixed shaft is rotatably arranged in the strip-shaped hole in a penetrating mode and can slide along the length direction of the strip-shaped hole.
Optionally, the elastic member is a spring, the spring is sleeved on the rod body, and two ends of the spring are respectively abutted against the support and the tether supporting plate.
Optionally, a stopper is arranged on the support, and the stopper is located at a position close to the positioning element and used for preventing the rod body from rotating towards one side of the positioning element.
Optionally, the positioning element is arranged on a fixing pin seat of the bollard main body;
the positioning part is a positioning hole, and the positioning part is a positioning clamping hook matched with the positioning hole.
The embodiment of the invention also provides a ship lock management and control system which comprises the bollard mooring releasing device.
Optionally, the system further comprises a ship lock centralized control system, a displacement sensor and an alarm device, wherein the ship lock centralized control system is electrically connected with the displacement sensor and the alarm device respectively;
the displacement sensor is arranged on the tether assembly and used for transmitting a displacement signal of the tether assembly to the ship lock centralized control system, and the ship lock centralized control system is used for controlling the alarm device to send an alarm signal.
The mooring post cable releasing device and the ship lock management and control system provided by the embodiment of the invention have the beneficial effects of: when the floating mooring post is blocked and can not lift along with the water drainage process of the lock chamber, the positioning part of the mooring rope supporting plate is separated from the positioning part on the mooring post main body under the action of pulling force, at the moment, the mooring rope assembly can rotate relative to the mooring post main body until the mooring rope is separated from the mooring rope assembly, and the situations of disconnecting the mooring rope, damaging the mooring rope device or overturning the ship are not easy to occur.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of a lock floating bollard in an embodiment of the present application;
fig. 2 is a schematic structural diagram showing a normal working state of the cable releasing device in the embodiment of the present application;
fig. 3 is a schematic structural view showing a state in which a release device is pressed and released in an embodiment of the present application;
FIG. 4 is a schematic structural view showing the cable releasing device in a spring locking state in the embodiment of the application;
fig. 5 is a schematic view showing a state in which a cable releasing device is rotated in the embodiment of the present application.
Icon: 10-lock floating bollard; 100-bollard main body; 110-a positioning element; 120-a fixed pin boss; 130-a framework; 140-a buoy; 200-a cable-releasing device; 210-a tether pallet; 211-a positioning section; 220-a tether assembly; 221-bollard; 222-a rod body; 2221-grooves; 2222-fixed axis; 223-an elastic member; 224-a support; 2241-a strip-shaped hole; 2242-a stop block; 225-washer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are only used to distinguish one description from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
In order to solve the problems of cable disconnection, rope tying device damage and even ship overturning caused by ship mooring column jamming, the embodiment provides a ship lock management and control system.
Referring to fig. 1-2, the ship lock management system of the present embodiment includes a ship lock floating bollard 10, wherein the ship lock floating bollard 10 includes a bollard body 100 and a mooring line releasing device 200.
The delatch device 200 includes a tether plate 210 and a tether assembly 220 for mooring a line, the tether plate 210 being connected to the tether assembly 220, the tether assembly 220 being rotatably disposed on the bollard body 100; the tether supporting plate 210 is provided with a positioning part 211, and the bollard main body 100 is provided with a positioning part 110 which is used for being matched with the positioning part 211 to position the tether assembly 220; with locator portion 211 disengaged from locator 110, tether assembly 220 may be rotated relative to bollard body 100 such that the cable is disengaged from tether assembly 220.
When the bollard main body 100 is blocked and can not lift along with the water drainage process of the lock chamber, under the action of pulling force, the positioning part 211 of the tether supporting plate 210 is separated from the positioning part 110 on the bollard main body 100, at the moment, the tether assembly 220 can rotate relative to the bollard main body 100 until the cable is separated from the tether assembly 220, and the conditions of cable disconnection, tether device damage or ship overturn are not easy to occur.
Further, the mooring line assembly 220 includes a mooring line post 221 for mooring line, a rod body 222, an elastic member 223 and a support 224, wherein the support 224 is disposed on the mooring line post body 100; one end of the rod 222 is connected to the tether support plate 210, and the rod 222 is slidably disposed on the support 224, so that the positioning portion 211 is separated from the positioning element 110 when the rod 222 slides away from the positioning element 110; the tether pole 221 is disposed on a side of the tether support plate 210 away from the rod body 222; the elastic member 223 is disposed between the seat 224 and the tether pallet 210, with a tendency to always move the tether pallet 210 toward the side away from the seat 224.
When the rope is tied, the positioning part 211 is matched with the positioning part 110 to position the rope tying assembly 220, and then the rope is tied on the rope tying column 221; when the tension of the mooring post 221 exceeds the limit, the rod 222 slides away from the positioning member 110, the elastic member 223 is compressed until the positioning portion 211 is separated from the positioning member 110, and then the mooring post 221, the mooring support plate 210, the rod 222 and the elastic member 223 rotate relative to the support 224 until the mooring rope is separated from the mooring post 221, so that the conditions of cable disconnection, mooring device damage or ship overturn are not easy to occur.
In addition, the tether assembly 220 further includes a washer 225, the washer 225 is sleeved on the rod body 222, and two ends of the elastic member 223 abut against the washer 225 and the tether support plate 210, respectively. In this embodiment, the washer 225 is an elastic washer, the rod 222 is provided with a groove 2221, and the elastic washer is used for being clamped into the groove 2221 during the sliding process of the rod 222 relative to the support 224 to prevent the elastic member 223 from being deformed.
The elastic washer is disposed between the elastic member 223 and the support 224, and when the elastic member 223 is compressed and the rod body 222 slides to a position where the elastic washer faces the groove 2221, the elastic washer automatically snaps into the groove 2221, so as to prevent the elastic member 223 from being deformed, and to position the elastic member 223.
In addition, a strip-shaped hole 2241 is formed in the support 224, and a fixed shaft 2222 is arranged on the rod body 222; the fixing shaft 2222 is rotatably inserted into the bar-shaped hole 2241, and can slide along the length direction of the bar-shaped hole 2241.
In this embodiment, the strip-shaped holes 2241 are waist-shaped holes, the length direction of the waist-shaped holes is inclined downward, and the inclined lowest end of the waist-shaped holes is far away from the positioning element 110; the fixing shaft 2222 is coupled in the kidney-shaped hole by means of a locking ring and a bolt, and the fixing shaft 2222 can slide along the length direction of the kidney-shaped hole.
When the tension of the mooring rope fastening column 221 exceeds the limit, the rod body 222 firstly slides downwards along the length direction of the waist-shaped hole in an inclined manner until the fixing shaft 2222 slides to the lowest end of the waist-shaped hole, at this time, the positioning part 211 is separated from the positioning part 110, and under the action of the tension, the mooring rope fastening column 221, the mooring rope supporting plate 210, the rod body 222, the elastic washer 225 and the elastic part 223 all rotate relative to the support 224 until the mooring rope is separated from the mooring rope fastening column 221, so that the conditions of disconnecting the mooring rope, damaging the mooring rope fastening device or overturning the ship are not easy to occur.
In the present embodiment, the elastic member 223 is a spring, the spring is sleeved on the rod 222, and two ends of the spring respectively abut against the support 224 and the tether support plate 210.
When the spring is compressed, the rod body 222 slides to the position where the elastic washer is opposite to the groove 2221, and the elastic washer is automatically clamped into the groove 2221, so that the spring is prevented from being deformed, the spring is positioned, and the positioning portion 211 is more conveniently separated from the positioning member 110.
In addition, a stopper 2242 is disposed on the support 224, and the stopper 2242 is located close to the positioning member 110 to prevent the rod 222 from rotating toward one side of the positioning member 110.
In this embodiment, the stopper 2242 is disposed on one side of the elastic washer and is used to abut against the elastic washer, and when the elastic washer abuts against the stopper 2242, the positioning portion 211 can cooperate with the positioning member 110 to position the tether pillar 221, so that the tether pillar 221 is kept in a vertical state.
In addition, the bollard main body 100 is provided with a fixed pin boss 120, and the positioning member 110 is arranged on the fixed pin boss 120; in the present embodiment, the positioning portion 211 is a positioning hole, and the positioning element 110 is a positioning hook for matching with the positioning hole.
When the elastic washer 225 abuts against the stopper 2242 and the spring recovers deformation, the positioning hook is clamped with the positioning hole, so that the rope tying column 221 is positioned, and the rope tying column 221 is kept in a vertical state. When the tension of the tether pole 221 exceeds the limit, the rod 222 slides down until the positioning hook is disengaged from the positioning hole, and the tether assembly 220 can rotate relative to the support 224.
It should be noted that, when the water level of the lock discharge falls, if the floating bollard is blocked, the pulling force of the cable tied to the tether assembly 220 increases continuously with the falling of the water level, when the vertical downward component of the tether assembly 220 reaches 1.5 times of the normal buoyancy of the floating bollard device (the spring force is about 5 OKN), the spring compresses, the positioning hooks are disengaged from the positioning holes, the elastic washers are engaged in the grooves 2221, and the whole tether assembly 220 rotates relative to the support 224 until the cable is disengaged from the bollard 221. When the tether assembly 220 needs to be reset, the elastic washer 225 is abutted to the stopper 2242, the elastic washer is separated from the groove 2221, and the positioning hook is clamped with the positioning hole again to complete resetting under the action of the restoring force of the spring.
In this embodiment, mooring post body 100 includes a frame 130 and a pontoon 140, frame 130 is connected to the top end of pontoon 140, and both pontoon 140 and frame 130 are provided with the above-mentioned mooring release 200 on the same side, and two mooring release 200 are arranged vertically, and the high position mooring release generally supplies empty ship mooring rope to lean on the ship, and the low position mooring release supplies cargo ship mooring rope to lean on the ship.
Fig. 2-5 sequentially show the cable releasing device 200 in a normal operating state, a pressed releasing state, a spring locking state and a rotating state.
In addition, the ship lock management and control system further comprises a ship lock centralized control system, a displacement sensor and an alarm device (not shown in the figure), wherein the ship lock centralized control system is electrically connected with the displacement sensor and the alarm device respectively; the displacement sensor is arranged on the tether assembly 220 and used for transmitting a displacement signal of the tether assembly 220 to the ship lock centralized control system through a signal line, and the ship lock centralized control system is used for controlling the alarm device to send out an alarm signal.
When the tether assembly 220 rotates, the displacement sensor detects a displacement signal of the tether assembly 220 and transmits the displacement signal to the ship lock centralized control system, and the ship lock centralized control system controls the alarm device to send out an alarm signal to prompt sailors and operators on duty to quickly deal with and process in time.
According to the principle of design action, when the rope fastening column 221 can be turned over, the spring needs to be compressed to enable the rope fastening column 221 to move downwards for more than 50mm, and the positioning clamping hook is separated from the positioning hole.
According to the whole self-weight and buoyancy of the floating mooring post, when the resistance of the floating mooring post is equal to 1.5 times of the buoyancy, the spring is compressed, the positioning snap hook is separated from the positioning hole, and the tether assembly 220 can rotate relative to the support 224.
And (3) calculating and verifying the compression amount and the compression force of the spring:
setting: the diameter d =12mm of the spring steel wire, the checking parameter table takes the winding ratio c =5, and the effective number of turns n is represented by the formula
Obtaining by solution: n =1.26, and take the effective number of turns n =2.
Wherein, the effective number of turns n refers to the number of turns of the spring which can be compressed to generate elastic force; e represents the elastic modulus, and E =18700kgf/mm may be used 2 (ii) a d represents the spring diameter, k represents the material coefficient, the material selection can be stainless spring steel wire (0Cr 17Ni7Al), and the spring parameters can be selected according to the structure of the device.
According to the embodiment, the mooring bollard mooring releasing device 200 is provided, and the working principle of the mooring bollard mooring releasing device 200 is as follows: when the floating mooring post is blocked and can not lift along with the water drainage process of the gate chamber, and the resistance of the mooring post is equal to 1.5 times of buoyancy, the spring is compressed, the elastic gasket is clamped into the groove 2221, the positioning clamping hook is separated from the positioning hole, and at the moment, the mooring rope assembly 220 rotates relative to the support 224 until the mooring rope is separated from the mooring post 221, so that the conditions of disconnecting the mooring rope, damaging the mooring rope device or overturning the ship are not easy to occur.
In summary, the embodiment of the present invention provides a bollard release mechanism 200 and a lock management and control system, when the water level of the lock is lowered, the floating bollard is blocked, when the pulling force of the cable on the tether assembly 220 exceeds the limit, the positioning portion 211 is released from the positioning member 110, and the tether assembly 220 rotates relative to the support base 224 until the cable is released from the bollard 221; when the cable is separated from the mooring post 221, the displacement sensor transmits the displacement signal of the mooring rope assembly 220 to the ship lock centralized control system, and the ship lock centralized control system controls the alarm device to send out an alarm signal to prompt a crew and an operator on duty to quickly deal with and process in time.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (9)
1. A bollard de-hawser comprising a tether support plate and a tether assembly for mooring a line, the tether support plate being connected to the tether assembly, the tether assembly being rotatably disposed on a bollard body;
the tether supporting plate is provided with a positioning part which is used for being matched with a positioning part on the mooring post main body to position the tether assembly;
under the condition that the positioning part is separated from the positioning part, the tether assembly can rotate relative to the bollard main body so that the cable is separated from the tether assembly;
the rope tying assembly comprises a rope tying column for tying a rope, a rod body, an elastic piece and a support, and the support is arranged on the mooring column main body;
one end of the rod body is connected with the tether supporting plate, the rod body is slidably arranged on the support, and the positioning part is separated from the positioning part in the process that the rod body slides away from the positioning part;
the rope tying column is arranged on one side of the rope tying supporting plate, which is far away from the rod body;
the elastic piece is arranged between the support seat and the tether supporting plate and has a tendency of always enabling the tether supporting plate to move towards the side departing from the support seat.
2. The bollard de-hawser of claim 1 wherein the tether assembly further comprises a washer, the washer is sleeved on the rod body, and two ends of the elastic member respectively abut against the washer and the tether support plate.
3. The bollard mooring de-mooring device of claim 2, wherein the washer is an elastic washer, a groove is formed in the rod body, and the elastic washer is clamped into the groove in a sliding process of the rod body relative to the support to prevent the elastic member from restoring deformation.
4. The bollard de-mooring device according to claim 1, wherein a strip-shaped hole is formed in the support, and a fixed shaft is arranged on the rod body;
the fixed shaft is rotatably arranged in the strip-shaped hole in a penetrating mode and can slide along the length direction of the strip-shaped hole.
5. The bollard de-hawser of claim 1 wherein the elastic member is a spring, the spring is sleeved on the rod body, and two ends of the spring are respectively abutted against the support and the tether support plate.
6. The bollard de-hawser of claim 1 wherein the support is provided with a stop, the stop being located adjacent to the positioning member for preventing the rod from rotating toward one side of the positioning member.
7. The bollard as recited in claim 1 wherein the locating member is disposed on a fixed pin boss of the bollard body;
the positioning part is a positioning hole, and the positioning part is a positioning clamping hook matched with the positioning hole.
8. A ship lock management and control system comprising a bollard de-hawser as claimed in any one of claims 1-7.
9. The ship lock management and control system according to claim 8, further comprising a ship lock centralized control system, a displacement sensor and an alarm device, wherein the ship lock centralized control system is electrically connected with the displacement sensor and the alarm device respectively;
the displacement sensor is arranged on the tether assembly and used for transmitting a displacement signal of the tether assembly to the ship lock centralized control system, and the ship lock centralized control system is used for controlling the alarm device to send out an alarm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111346202.8A CN114032872B (en) | 2021-11-15 | 2021-11-15 | Mooring post cable releasing device and ship lock management and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111346202.8A CN114032872B (en) | 2021-11-15 | 2021-11-15 | Mooring post cable releasing device and ship lock management and control system |
Publications (2)
| Publication Number | Publication Date |
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| CN114032872A CN114032872A (en) | 2022-02-11 |
| CN114032872B true CN114032872B (en) | 2023-02-03 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603318A (en) * | 2013-11-26 | 2014-02-26 | 江苏省交通规划设计院股份有限公司 | Floating type bollard |
| CN209096947U (en) * | 2018-11-28 | 2019-07-12 | 青岛丽星物流有限公司 | A kind of Quick cable release device |
| JP2019209842A (en) * | 2018-06-05 | 2019-12-12 | 東京ウォータータクシー株式会社 | Mooring device |
| CN110606165A (en) * | 2019-10-17 | 2019-12-24 | 上海中车汉格船舶与海洋工程有限公司 | Emergent cable release controlling means of boats and ships |
-
2021
- 2021-11-15 CN CN202111346202.8A patent/CN114032872B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603318A (en) * | 2013-11-26 | 2014-02-26 | 江苏省交通规划设计院股份有限公司 | Floating type bollard |
| JP2019209842A (en) * | 2018-06-05 | 2019-12-12 | 東京ウォータータクシー株式会社 | Mooring device |
| CN209096947U (en) * | 2018-11-28 | 2019-07-12 | 青岛丽星物流有限公司 | A kind of Quick cable release device |
| CN110606165A (en) * | 2019-10-17 | 2019-12-24 | 上海中车汉格船舶与海洋工程有限公司 | Emergent cable release controlling means of boats and ships |
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| CN114032872A (en) | 2022-02-11 |
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