WO2018120405A1 - 一种水利船闸区域船体防护机构 - Google Patents

一种水利船闸区域船体防护机构 Download PDF

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Publication number
WO2018120405A1
WO2018120405A1 PCT/CN2017/075150 CN2017075150W WO2018120405A1 WO 2018120405 A1 WO2018120405 A1 WO 2018120405A1 CN 2017075150 W CN2017075150 W CN 2017075150W WO 2018120405 A1 WO2018120405 A1 WO 2018120405A1
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disposed
air
pulling plate
protection mechanism
plate
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PCT/CN2017/075150
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English (en)
French (fr)
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孙永森
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孙永森
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Publication of WO2018120405A1 publication Critical patent/WO2018120405A1/zh

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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
    • 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

Definitions

  • the invention relates to a water conservancy safety device, in particular to a hull protection mechanism in a water conservancy ship lock area.
  • the ship lock is a hydraulic structure that uses the water channel that is controlled by the gates of both ends to fill and drain water to raise and lower the water level so that the ship can overcome the concentrated water level difference on the channel and ensure the smooth operation of the ship.
  • the ship After entering the lock chamber, the ship must be restricted by the cable.
  • the ship's water delivery system uses more rapid water delivery equipment such as pumps, which will reduce the stability of the ship's berthing and the tension of the ship's cable. It is limited. How to improve the navigation speed while ensuring the safety of the ship in the lock chamber and avoiding the ship hitting the upstream and downstream gates is a problem to be solved by the present invention.
  • the invention provides a pulling device for a water conservancy ship lock which can replace or assist the ship mooring rope of the over-staying ship, improve the stability of the ship in the brake chamber and can effectively improve the navigation speed.
  • the present invention provides a hull protection mechanism for a water conservancy ship lock region, comprising a pulling device 2 disposed in a ship lock region, the pulling device 2 being disposed in the middle of the wall 1 on both sides of the ship lock region, pulling Both ends of the device 2 are connected to the two side walls 1; the pulling device 2 is suction-connected to the bottom of the hull 3 passing through the ship lock region.
  • the pulling device 2 includes a pulling plate 21 for pulling the hull, and the sliding plate 22 is symmetrically disposed on both sides of the pulling plate 21, and the sliding wall 22 defines a sliding slot corresponding to the sliding block 22 23, a push rod 24 is embedded in the chute 23, and a bottom end of the push rod 24 is fixedly connected to a top end of the slider 22.
  • the push rod 24 is a telescopic rod, including a sleeved outer rod 25 and an inner rod 26, and the outer rod 25 is inside A cavity is provided, a piston is disposed at a top end of the inner rod 26, and a cavity of the piston and the outer rod 25 is fitted; a cavity of the outer rod 25 is connected to the air passage pipe 27, and the air passage pipe 27 is connected to the two-way air pump 28. At one end, the other end of the two-way air pump 28 is connected to the air bag provided at the bottom of the pulling plate 21 through the air path ducts 29.
  • the two-way air pump 28 is an air pump set.
  • the air bag is symmetrically disposed at the bottom of the pulling plate 21, and the air pipe 2 is divided by the two-way air pump 28 into two air passages to the two airbags;
  • the air inlets are respectively disposed at both ends, and the two air inlets are respectively connected to the two sets of the air path pipes 29 and the two-way air pump 8 on both sides of the pulling plate 21.
  • the bottom of the pulling plate 21 is provided with a balloon guard 30, the airbag is disposed inside the airbag guard 30, the airbag guard 30 includes a bottom plate, and a folding plate disposed on both sides of the bottom plate, the top of the folding plate and The bottom of the pulling plate 21 is hinged, and the top of the air bag is fixedly connected with the lower surface of the pulling plate 21, and the bottom of the air bag is fixedly connected with the upper surface of the bottom plate of the air bag guard 30.
  • connection between the gas path pipe 27 and the two-way air pump 28 is further provided with an intake pipe 31, one end of the intake pipe 31 is in communication with the air, and the other end is connected to the two-way air pump 28 through the intake valve 32;
  • the intake valve 32 is a two-way door, and an intake plug 321 is disposed at an inner end thereof, and a venting opening 322 is disposed at an outer end thereof, and an air hole 323 is disposed on the intake valve 32, and a through hole 324 is disposed in a middle portion of the air inlet plug 321
  • An exhaust plug 322 is disposed outside the through hole 324.
  • the air inlet plug 321 and the exhaust plug 322 are respectively connected to the side wall of the air hole 323 by a spring.
  • the inner side of the side wall of the air hole 323 is provided with a limiting block 325 corresponding to the exhaust plug 322.
  • the limiting block 325 includes one disposed on the exhaust plug 322, and two limiting blocks disposed on both sides of the limiting block and connected to the inner wall of the air hole 323.
  • an elastic roller 33 is disposed on a contact surface of the slider 22 and the sliding groove 23.
  • the pulling plate 21 has a gravity greater than or equal to the maximum buoyancy it is subjected to.
  • a suction cup type electromagnet is disposed on the pulling plate 21; a plurality of sealing cylinders 34 are disposed on the upper surface of the pulling plate 21, and the suction cup type electromagnet is disposed inside the sealing tube 34.
  • the suction cup type electromagnet is connected to a line through a cavity inside the pulling plate 21.
  • the slider 22 is coupled to the pulling plate 21 by a rope.
  • the electromagnet When the hull needs to be released, the electromagnet is turned off, the two-way air pump 28 is operated backwards, the air in the airbag is reversely discharged into the push rod 24, and the excess air is discharged into the air through the exhaust plug 322 of the intake valve 32. . Under the action of the weight of the push rod 24 and the pulling plate 21, the pulling plate 21 is moved downward, and the hull 3 can normally leave.
  • the invention has the beneficial effects that the present invention can replace or assist the existing lock chamber ship securing mechanism (such as mooring cable), and fix the ship stability by fixing the ship in the lock chamber through a suspension mechanism connected with the ship wall. At the same time, it also provides room for improvement of the ship's traffic speed.
  • the existing lock chamber ship securing mechanism such as mooring cable
  • FIG. 1 is a schematic diagram of a ship passing state according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of an embodiment of the present invention.
  • FIG. 3 is a schematic structural view of a pulling plate according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a pulling device according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural view of an intake valve according to an embodiment of the present invention.
  • Figure 6 is a partial enlarged view of A of Figure 5 .
  • the invention provides a hull protection mechanism for a water conservancy ship lock region, comprising a pulling device 2 arranged in a ship lock region, the pulling device 2 is arranged in the middle of the wall 1 on both sides of the ship lock region, two ends of the pulling device 2 and two The side wall 1 is connected; the pulling device 2 is suction-connected to the bottom of the hull 3 passing through the ship lock area.
  • the pulling device 2 includes a pulling plate 21 for pulling the hull, and the sliding plate 22 is symmetrically disposed on both sides of the pulling plate 21.
  • the sliding wall 23 is formed on the wall 1 corresponding to the sliding block 22, and the sliding rod is embedded in the sliding groove 23. 24, the bottom end of the push rod 24 is fixedly connected to the top end of the slider 22.
  • the push rod 24 is a telescopic rod, and includes a sleeved outer rod 25 and an inner rod 26.
  • the outer rod 25 is provided with a cavity.
  • the top end of the inner rod 26 is provided with a piston, and the piston and the outer wall of the outer rod 25 are fitted together; the outer rod 25 is attached.
  • the cavity is connected to the gas path pipe 27, and the gas path pipe 27 is connected to one end of the two-way air pump 28, and the other end of the two-way air pump 28 is connected to the air bag provided at the bottom of the pulling plate 21 through the air pipe 221.
  • the two-way air pump 28 is an air pump set.
  • the air bag is symmetrically disposed at the bottom of the pulling plate 21, and the air pipe 2 29 is divided into two paths by the two-way air pump 28 through the three-way to the two air bags; the air bag is provided at both ends of the air bag, and the two air inlets are respectively connected Two sets of gas path pipes 29 and two-way air pumps 8 on both sides of the pulling plate 21 are pulled.
  • the air bag guard 30 is disposed at the bottom of the pulling plate 21.
  • the air bag is disposed inside the air bag guard 30.
  • the air bag guard 30 includes a bottom plate and a folding plate disposed on both sides of the bottom plate.
  • the top of the folding plate is hinged to the bottom of the pulling plate 21.
  • the top of the airbag is fixedly coupled to the lower surface of the pulling plate 21, and the bottom of the airbag is fixedly coupled to the upper surface of the bottom plate of the airbag guard 30.
  • An intake pipe 31 is further disposed at a connection between the air pipe 1-27 and the two-way air pump 28, and one end of the intake pipe 31 is in communication with the air, and the other end is connected to the two-way air pump 28 through the intake valve 32;
  • the intake valve 32 is a two-way door, and an intake plug 321 is disposed at an inner end thereof, a vent plug 322 is disposed at an outer end thereof, a vent 323 is disposed on the intake valve 32, and a through hole 324 is disposed in a middle portion of the intake plug 321
  • the exhaust plug 322 is disposed.
  • the air inlet plug 321 and the exhaust plug 322 are respectively connected to the side wall of the air hole 323 by a spring.
  • the inner side of the side wall of the air hole 323 is provided with a limiting block 325 corresponding to the exhaust plug 322.
  • the limiting block 325 includes one disposed on the exhaust plug 322, and two limiting blocks disposed on both sides of the limiting block and connected to the inner wall of the air hole 323.
  • An elastic roller 33 is provided on a contact surface of the slider 22 and the chute 23.
  • the weight of the pulling plate 21 is greater than or equal to the maximum buoyancy it is subjected to.
  • a suction cup type electromagnet is disposed on the pulling plate 21; a plurality of sealing cylinders 34 are disposed on the upper surface of the pulling plate 21, and the suction cup type electromagnet is disposed inside the sealing tube 34.
  • the suction cup type electromagnet is connected to the line through the cavity inside the pulling plate 21.
  • the slider 22 is connected to the pulling plate 21 by a rope.
  • the two-way air pump 28 When opened, the air in the chamber of the push rod 24 is drawn out to the air bag under the pulling plate 21.
  • the air inlet of the intake valve 32 is acted upon by the two-way air pump 28.
  • the external air is introduced into the process, and the push rod 24 is contracted, the air bag is inflated, the pulling plate 21 is lifted, and the electromagnet in the sealing tube 34 on the pulling plate 21 is turned on.
  • the pulling plate 21 is pulled. It is engaged with the bottom of the hull 3 to function as a fixed hull 3.
  • the electromagnet When the hull needs to be released, the electromagnet is turned off, the two-way air pump 28 is operated backwards, the air in the airbag is reversely discharged into the push rod 24, and the excess air is discharged into the air through the exhaust plug 322 of the intake valve 32. . Under the action of the weight of the push rod 24 and the pulling plate 21, the pulling plate 21 is moved downward, and the hull 3 can normally leave.

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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)
  • Revetment (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

一种水利船闸区域船体防护机构，包括设置在船闸区域内的牵拉装置（2），牵拉装置（2）设置在船闸区域两侧墙体（1）的中间，牵拉装置（2）的两端与两侧墙体（1）连接；牵拉装置（2）与经过船闸区域的船体（3）底部吸附式连接。该防护机构能够替代或辅助现有闸室船舶稳固机构，通过与船道墙体（1）连接的悬浮机构固定闸室内的船舶，提高了船舶的稳定性，同时也为船闸的通行速度提供了提升空间。

Description

一种水利船闸区域船体防护机构 技术领域
本发明涉及水利安全设施，特别涉及一种水利船闸区域船体防护机构。
背景技术
船闸是利用向两端闸门控制的航道内灌、泄水，以升降水位，使船舶能克服航道上的集中水位落差，保证船舶顺利的水工建筑物。船只下行时，先向闸室内灌水，待闸室内水位与上游水位齐平，开启上游闸门，让船只进入闸室，随即关闭上游闸门，将闸室泄水，待闸室水面与下游水位相齐平时，打开下游闸门，船只驶出闸室，进入下游航道；上行时则相反。在船舶进入闸室前，船舶为了保证停泊平稳需要通过缆绳系在船墩上，进入闸室后还需将船舶通过缆绳限位。为了提高灌泄水速度，缩短灌泄水时间，减少船舶停靠排队时间，船闸输水系统多利用水泵等快速输水设备，这就会降低船闸内船舶的停泊平稳性，且系船缆绳的拉力是有限的，如何能够提高通航速度同时又能保证闸室内船舶的安全，避免船舶撞坏上下游闸门是本发明所要解决的问题。
发明内容
本发明提供了一种能够替代或辅助过闸船舶系船缆绳、提高闸室内船舶稳定性且能够有效提高通航速度的水利船闸用牵拉装置。
为了实现上述目的，本发明提供了一种水利船闸区域船体防护机构，包括设置在船闸区域内的牵拉装置2，所述牵拉装置2设置在船闸区域两侧墙体1的中间，牵拉装置2的两端与两侧墙体1连接；牵拉装置2与经过船闸区域的船体3底部吸附式连接。
优选为，所述牵拉装置2包括用来拉住船体的牵拉板21，所述牵拉板21两侧对称设置滑块22，所述墙体1上与所滑块22对应开设滑槽23，滑槽23内埋设推杆24，推杆24底端与所述滑块22的顶端固定连接。
优选为，所述推杆24为伸缩杆，包括套接的外杆25和内杆26，外杆25内 设置有空腔，内杆26的顶端设置活塞，活塞和外杆25的腔壁贴合；所述外杆25的空腔连通气路管道一27，所述气路管道一27连接双向气泵28的一端，双向气泵28的另一端通过气路管道二29与设置在所述牵拉板21底部的气囊连接。
双向气泵28为气泵组。
优选为，所述气囊在所述牵拉板21底部对称设置两个，所述气路管道二29由所述双向气泵28经过三通分为两路通向两个所述气囊；所述气囊两端均设置进气口，两个进气口分别连接所述牵拉板21两侧的两套所述气路管道二29、双向气泵8。
优选为，所述牵拉板21底部设置气囊护板30，所述气囊设置在气囊护板30内部，气囊护板30包括一块底板，及设置在底板两侧的折叠板，折叠板的顶部与所述牵拉板21的底部铰接，所述气囊的顶部与所述牵拉板21的下表面固定连接，所述气囊的底部与所述气囊护板30的底板上表面固定连接。
优选为，所述气路管道一27与所述双向气泵28的连接处还设置有进气管31，进气管31一端与空气连通，另一端与所述双向气泵28通过进气门32连接；
所述进气门32为双向门，其内侧端设置进气塞321，其外侧端设置排气塞322，所述进气门32上设置有气孔323，进气塞321中部设置通孔324，通孔324外侧设置排气塞322，进气塞321与排气塞322分别与气孔323的侧壁通过弹簧连接，气孔323的侧壁内部与排气塞322对应设置限位块325。限位块325包括设置在所述排气塞322上的一个，及设置在该限位块两侧且与气孔323内壁连接的两个限位块。
优选为，所述滑块22与所述滑槽23的接触面上设置有弹性滚轮33。
优选为，所述牵拉板21的重力大于或等于其自身所受的最大浮力。
优选为，所述牵拉板21上设置吸盘式电磁铁；所述牵拉板21上表面均与分布若干密封筒34，所述吸盘式电磁铁设置在密封筒34内部。所述吸盘式电磁铁通过所述牵拉板21内部的空腔连接线路。
优选为，所述滑块22通过绳索与所述牵拉板21连接。
本发明工作过程，当有船经过该区域时，即闸门开合转换时，双向气泵28开启，将推杆24腔室内的空气抽出排至牵拉板21下的气囊中，当推杆24腔室内的空气排空后，在双向气泵28的作用下，进气门32的进气塞打开将外部空气引入，此过程推杆24收缩、气囊膨胀，牵拉板21提升，同时牵拉板21上密 封筒34内的电磁铁接通，当接触到船体3底部时，牵拉板21与船体3底部吸合，从而起到固定船体3的作用。当需要释放船体时，电磁铁关闭，双向气泵28逆行工作，将气囊中的空气反向排入至推杆24中，并将多余的空气通过进气门32的排气塞322排出至空气中。在推杆24和牵拉板21自重的作用下，牵拉板21下移，船体3可正常离开。
本发明的有益效果是：本发明能够替代或辅助现有闸室船舶稳固机构(如系船缆绳)，通过与船道墙体连接的悬浮机构固定闸室内的船舶，提高了船舶的稳定性，同时也为船闸的通行速度提供了提升空间。
附图说明
图1为本发明实施例的过船状态示意图。
图2为本发明实施例的结构示意图。
图3为本发明实施例的牵拉板结构示意图。
图4为本发明实施例牵拉装置结构示意图。
图5为本发明实施例进气门结构示意图。
图6为图5的A局部放大图。
其中，附图标记为：
1、墙体；2、牵拉装置；21、牵拉板；22、滑块；23、滑槽；24、推杆；25、外杆；26、内杆；27、气路管道一；28、双向气泵；29、气路管道二；30、气囊护板；31、进气口；32、进气门；321、进气塞；322、排气塞；323、气孔；324、通孔；325、限位块；33、滚轮；34、密封筒；3、船体；
具体实施方式
为能清楚说明本方案的技术特点，下面通过具体实施方式，对本方案进行阐述。
实施例1
本发明提供了一种水利船闸区域船体防护机构，包括设置在船闸区域内的牵拉装置2，牵拉装置2设置在船闸区域两侧墙体1的中间，牵拉装置2的两端与两侧墙体1连接；牵拉装置2与经过船闸区域的船体3底部吸附式连接。
牵拉装置2包括用来拉住船体的牵拉板21，牵拉板21两侧对称设置滑块22，墙体1上与所滑块22对应开设滑槽23，滑槽23内埋设推杆24，推杆24底端与滑块22的顶端固定连接。
推杆24为伸缩杆，包括套接的外杆25和内杆26，外杆25内设置有空腔，内杆26的顶端设置活塞，活塞和外杆25的腔壁贴合；外杆25的空腔连通气路管道一27，气路管道一27连接双向气泵28的一端，双向气泵28的另一端通过气路管道二29与设置在牵拉板21底部的气囊连接。
双向气泵28为气泵组。
气囊在牵拉板21底部对称设置两个，气路管道二29由双向气泵28经过三通分为两路通向两个气囊；气囊两端均设置进气口，两个进气口分别连接牵拉板21两侧的两套气路管道二29、双向气泵8。
牵拉板21底部设置气囊护板30，气囊设置在气囊护板30内部，气囊护板30包括一块底板，及设置在底板两侧的折叠板，折叠板的顶部与牵拉板21的底部铰接，气囊的顶部与牵拉板21的下表面固定连接，气囊的底部与气囊护板30的底板上表面固定连接。
气路管道一27与双向气泵28的连接处还设置有进气管31，进气管31一端与空气连通，另一端与双向气泵28通过进气门32连接；
进气门32为双向门，其内侧端设置进气塞321，其外侧端设置排气塞322，进气门32上设置有气孔323，进气塞321中部设置通孔324，通孔324外侧设置排气塞322，进气塞321与排气塞322分别与气孔323的侧壁通过弹簧连接，气孔323的侧壁内部与排气塞322对应设置限位块325。限位块325包括设置在排气塞322上的一个，及设置在该限位块两侧且与气孔323内壁连接的两个限位块。
滑块22与滑槽23的接触面上设置有弹性滚轮33。
牵拉板21的重力大于或等于其自身所受的最大浮力。
牵拉板21上设置吸盘式电磁铁；牵拉板21上表面均与分布若干密封筒34，吸盘式电磁铁设置在密封筒34内部。吸盘式电磁铁通过牵拉板21内部的空腔连接线路。
滑块22通过绳索与牵拉板21连接。
本发明工作过程，当有船经过该区域时，即闸门开合转换时，双向气泵28 开启，将推杆24腔室内的空气抽出排至牵拉板21下的气囊中，当推杆24腔室内的空气排空后，在双向气泵28的作用下，进气门32的进气塞打开将外部空气引入，此过程推杆24收缩、气囊膨胀，牵拉板21提升，同时牵拉板21上密封筒34内的电磁铁接通，当接触到船体3底部时，牵拉板21与船体3底部吸合，从而起到固定船体3的作用。当需要释放船体时，电磁铁关闭，双向气泵28逆行工作，将气囊中的空气反向排入至推杆24中，并将多余的空气通过进气门32的排气塞322排出至空气中。在推杆24和牵拉板21自重的作用下，牵拉板21下移，船体3可正常离开。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种水利船闸区域船体防护机构，包括设置在船闸区域内的牵拉装置(2)，其特征在于，所述牵拉装置(2)设置在船闸区域两侧墙体(1)的中间，牵拉装置(2)的两端与两侧墙体(1)连接；牵拉装置(2)与经过船闸区域的船体(3)底部吸附式连接。
  2. 根据权利要求1所述的水利船闸区域船体防护机构，其特征在于，所述牵拉装置(2)包括用来拉住船体的牵拉板(21)，所述牵拉板(21)两侧对称设置滑块(22)，所述墙体(1)上与所滑块(22)对应开设滑槽(23)，滑槽(23)内埋设推杆(24)，推杆(24)底端与所述滑块(22)的顶端固定连接。
  3. 根据权利要求2所述的水利船闸区域船体防护机构，其特征在于，所述推杆(24)为伸缩杆，包括套接的外杆(25)和内杆(26)，外杆(25)内设置有空腔，内杆(26)的顶端设置活塞，活塞和外杆(25)的腔壁贴合；所述外杆(25)的空腔连通气路管道一(27)，所述气路管道一(27)连接双向气泵(28)的一端，双向气泵(28)的另一端通过气路管道二(29)与设置在所述牵拉板(21)底部的气囊连接。
  4. 根据权利要求3所述的水利船闸区域船体防护机构，其特征在于，所述气囊在所述牵拉板(21)底部对称设置两个，所述气路管道二(29)由所述双向气泵(28)经过三通分为两路通向两个所述气囊；所述气囊两端均设置进气口，两个进气口分别连接所述牵拉板(21)两侧的两套所述气路管道二(29)、双向气泵(8)。
  5. 根据权利要求3所述的水利船闸区域船体防护机构，其特征在于，所述牵拉板(21)底部设置气囊护板(30)，所述气囊设置在气囊护板(30)内部，气囊护板(30)包括一块底板，及设置在底板两侧的折叠板，折叠板的顶部与所述牵拉板(21)的底部铰接，所述气囊的顶部与所述牵拉板(21)的下表面固定连接，所述气囊的底部与所述气囊护板(30)的底板上表面固定连接。
  6. 根据权利要求3所述的水利船闸区域船体防护机构，其特征在于，所述气路管道一(27)与所述双向气泵(28)的连接处还设置有进气管(31)，进气管(31)一端与空气连通，另一端与所述双向气泵(28)通过进气门(32)连接；
    所述进气门(32)为双向门，其内侧端设置进气塞(321)，其外侧端设置排气塞(322)，所述进气门(32)上设置有气孔(323)，进气塞(321)中部设置通孔(324)，通孔(324)外侧设置排气塞(322)，进气塞(321)与排气塞(322)分别与气孔(323)的侧壁通过弹簧连接，气孔(323)的侧壁内部与排气塞(322)对应设置限位块(325)。限位块(325)包括设置在所述排气塞(322)上的一个，及设置在该限位块两侧且与气孔(323)内壁连接的两个限位块。
  7. 根据权利要求2所述的水利船闸区域船体防护机构，其特征在于，所述滑块(22)与所述滑槽(23)的接触面上设置有弹性滚轮(33)。
  8. 根据权利要求2所述的水利船闸区域船体防护机构，其特征在于，所述牵拉板(21)的重力大于或等于其自身所受的最大浮力。
  9. 根据权利要求1-8任一所述的水利船闸区域船体防护机构，其特征在于，所述牵拉板(21)上设置吸盘式电磁铁；所述牵拉板(21)上表面均与分布若干密封筒(34)，所述吸盘式电磁铁设置在密封筒(34)内部。所述吸盘式电磁铁通过所述牵拉板(21)内部的空腔连接线路。
  10. 根据权利要求1-8任一所述的水利船闸区域船体防护机构，其特征在于，所述滑块(22)通过绳索与所述牵拉板(21)连接。
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