阅读说明：本技术 一种适用于桥梁防撞拦截的自适应恒阻力拦截系统 (Self-adaptive constant-resistance interception system suitable for bridge anti-collision interception ) 是由 迟善美 张平 于 2021-09-27 设计创作，主要内容包括：本发明提供一种适用于桥梁防撞拦截的自适应恒阻力拦截系统,包括：系泊浮体,系泊浮体包括主体,所述主体的顶部设置有连接臂；相邻所述支撑浮筒之间通过拦截网固定连接,位于最边侧的两个支撑浮筒一侧的拦截网与所述系泊浮体固定连接,其中拦截网一侧的一端连接于连接臂上,所述拦截网一侧的另一端连接于所述主体上。本发明提供的适用于桥梁防撞拦截的自适应恒阻力拦截系统,通过设置拦截网配合支撑浮筒,当船只与拦截网内侧作用时,此时拦截网的外侧扬起将船只的头部网起,对其阻拦,同时设置恒阻力吸能链可以通过多个缓冲连接件,对船只的作用力逐渐吸收减缓,减小船只的作用力,且配合沉锚件使船只逐渐停下,具有更好的拦截效果。(The invention provides a self-adaptive constant-resistance interception system suitable for bridge anti-collision interception, which comprises: the mooring floating body comprises a main body, and a connecting arm is arranged at the top of the main body; adjacent through interception net fixed connection between the support flotation pontoon, be located two support flotation pontoon one sides of avris the interception net with mooring body fixed connection, wherein the one end of interception net one side is connected on the linking arm, the other end of interception net one side connect in on the main part. According to the self-adaptive constant-resistance intercepting system suitable for bridge anti-collision interception, the intercepting net is arranged to be matched with the supporting buoy, when a ship acts on the inner side of the intercepting net, the outer side of the intercepting net is lifted to net the head of the ship and block the head of the ship, meanwhile, the constant-resistance energy absorption chain is arranged to gradually absorb and slow down the acting force of the ship through the plurality of buffering connecting pieces, the acting force of the ship is reduced, the ship is gradually stopped by being matched with the sinking anchor pieces, and the intercepting effect is better.)

1. The utility model provides a self-adaptation constant resistance interception system suitable for bridge anticollision interception which characterized in that includes:

the mooring floating body comprises a main body, and a connecting arm is arranged at the top of the main body;

the supporting buoys are fixedly connected with each other through intercepting nets, the intercepting nets positioned on one sides of the two supporting buoys on the most lateral sides are fixedly connected with the mooring floating bodies, one ends of one sides of the intercepting nets are connected to the connecting arms, the other ends of one sides of the intercepting nets are connected to the main body, and the supporting buoys are close to the ship body and have larger diameters than those far away from the ship body;

energy absorption chain is inhaled to constant resistance, energy absorption chain includes energy-absorbing chain portion and two connecting link portions, energy-absorbing chain portion sets up the chain including the fifty percent discount, fixedly connected with buffering connecting piece, two between the chain that the fifty percent discount set up connecting link portion is fixed in the both sides of energy-absorbing chain portion, and two connecting link portion respectively with mooring body and heavy anchor fixed connection.

2. The adaptive constant-resistance intercepting system suitable for anti-collision intercepting of a bridge according to claim 1, wherein an energy-absorbing connecting piece is connected between chains symmetrically arranged at the energy-absorbing chain part, the energy-absorbing connecting piece comprises an installation cylinder, a piston adjusting piece is symmetrically and fixedly connected to the middle inside the installation cylinder, the piston adjusting piece comprises piston blocks, two opposite sides of the piston blocks are fixedly connected with piston rods, and one end of each piston rod penetrates through the installation cylinder and extends to the outside of the installation cylinder.

3. The adaptive constant-resistance intercepting system suitable for anti-collision interception of a bridge according to claim 2, wherein a fixing head is fixedly installed at one end of the piston rod, which is located outside the installation cylinder, through a locking part, and one end of the fixing head is fixedly connected with the energy-absorbing chain part.

4. The adaptive constant-resistance intercepting system suitable for anti-collision intercepting of a bridge according to claim 3, wherein liquid drainage holes are formed in both ends of the installation cylinder, a buffer liquid is arranged inside the installation cylinder, and a first elastic piece is arranged inside the installation cylinder and on one side of the piston block.

5. The adaptive constant-resistance intercepting system suitable for anti-collision intercepting of a bridge according to claim 2, wherein the inside of the piston block is provided with a cavity structure, a movable block is arranged inside the piston block, an elastic block is fixedly connected to one side of the inside of the piston block and located on the movable block, a push rod is fixedly connected to the other side of the movable block, and one end of the push rod penetrates through the piston block and extends to the outside of the piston block.

6. The adaptive constant-resistance intercepting system suitable for anti-collision intercepting of a bridge according to claim 3, wherein the latching portion comprises a mounting block, the mounting block is fixed at one end of the piston rod, two sides of the inside of the mounting block are both slidably connected with connecting blocks, one side of each of the two connecting blocks, which is away from each other, is both fixedly connected with a clamping block, one end of each clamping block penetrates through the mounting block and extends to the outside of the mounting block, and one side of each clamping block is provided with an arc-shaped surface.

7. The adaptive constant-resistance intercepting system suitable for anti-collision interception of bridges of claim 6, wherein a second elastic member is fixedly connected between the two connecting blocks, and a fixing rope is fixedly connected to one side opposite to the two connecting blocks.

8. The adaptive constant-resistance intercepting system suitable for anti-collision interception of bridges according to claim 7, wherein a cylindrical hole is arranged inside the piston rod, a transmission block is slidably arranged inside the cylindrical hole, the fixed rope is fixedly connected with one side of the transmission block, the other side of the transmission block is fixedly connected with a transmission rope, and one end of the transmission rope is fixedly connected with the movable block.

9. The adaptive constant-resistance intercepting system suitable for anti-collision interception of bridges of claim 3, wherein the fixing head comprises a fixing block, a fixing groove is formed on one side of the fixing block, and locking grooves are formed on both sides of the inner wall of the fixing groove.

10. The adaptive constant-resistance intercepting system suitable for bridge anti-collision interception according to claim 9, wherein a fixed ring is fixedly connected to the other side of the fixed head, and the fixed ring is fixedly connected to the energy-absorbing chain part.

Technical Field

The invention relates to the field of bridge collision avoidance, in particular to a self-adaptive constant-resistance interception system suitable for bridge collision avoidance.

Background

A bridge, which is generally a structure erected on rivers, lakes and seas to enable vehicles, pedestrians and the like to smoothly pass through, generally comprises an upper structure, a lower structure, a support and an auxiliary structure, wherein the upper structure is also called a bridge span structure and is a main structure for crossing obstacles; the substructure includes a bridge abutment, a pier and a foundation.

The bridge is additionally arranged on rivers, lakes and seas, and as the ships often pass by the water surface, when the ships pass through the bridge and the ship operation is wrong, water traffic accidents such as collision, sinking and the like of the ships on the bridge exist.

At present, in order to reduce the occurrence of accidents that ships collide to bridges, intercepting devices are arranged on the river surface of the front side of the bridge, the existing intercepting devices are usually one intercepting rope matched with a buoy and positioning devices, one intercepting rope easily slides downwards to the bottom of a ship when contacting with the front side of the ship body, and the existing intercepting devices have poor energy absorption and buffering effects on the driving force of the ship body, so that the intercepting effects are poor and the intercepting devices are easily damaged.

Therefore, it is necessary to provide an adaptive constant resistance interception system suitable for bridge anti-collision interception to solve the above technical problems.

Disclosure of Invention

The invention provides a self-adaptive constant-resistance intercepting system suitable for bridge anti-collision intercepting, and solves the problems that the existing intercepting equipment has poor energy absorption and buffering effects on ship body driving, so that the intercepting effect is poor and the intercepting equipment is easy to damage.

In order to solve the technical problems, the invention provides an adaptive constant resistance interception system suitable for bridge anti-collision interception, which comprises:

the mooring floating body comprises a main body, and a connecting arm is arranged at the top of the main body;

the supporting buoys are fixedly connected with each other through intercepting nets, the intercepting nets positioned on one sides of the two supporting buoys on the most lateral sides are fixedly connected with the mooring floating bodies, one ends of one sides of the intercepting nets are connected to the connecting arms, the other ends of one sides of the intercepting nets are connected to the main body, and the supporting buoys are close to the ship body and have larger diameters than those far away from the ship body;

energy absorption chain is inhaled to constant resistance, energy absorption chain includes energy-absorbing chain portion and two connecting link portions, energy-absorbing chain portion sets up the chain including the fifty percent discount, fixedly connected with buffering connecting piece, two between the chain that the fifty percent discount set up connecting link portion is fixed in the both sides of energy-absorbing chain portion, and two connecting link portion respectively with mooring body and heavy anchor fixed connection.

Preferably, be connected with the energy-absorbing connecting piece between the chain that energy-absorbing chain portion symmetry set up, the energy-absorbing connecting piece is including an installation section of thick bamboo, the inside middle symmetry fixedly connected with piston adjusting part of an installation section of thick bamboo, piston adjusting part includes piston block, two the equal fixedly connected with piston rod in the opposite one side of piston block, the one end of piston rod runs through the installation section of thick bamboo and extends to the outside of an installation section of thick bamboo.

Preferably, one end of the piston rod, which is located outside the mounting cylinder, is fixedly provided with a fixing head through a clamping lock part, and one end of the fixing head is fixedly connected with the energy-absorbing chain part.

Preferably, the both ends of an installation section of thick bamboo have all been seted up the outage, the inside of an installation section of thick bamboo is provided with the buffer solution, the inside of an installation section of thick bamboo and the one side that is located the piston block are provided with first elastic component.

Preferably, the inside of piston piece sets up to the cavity structure, the inside of piston piece is provided with the movable block, the inside of piston piece and the one side fixedly connected with elastic block that is located the movable block, the opposite side fixedly connected with catch bar of movable block, the outside that the piston piece just extended to the piston piece is run through to the one end of catch bar.

Preferably, the latch portion includes the installation piece, the installation piece is fixed in the one end of piston rod, the equal sliding connection in both sides of installation piece inside has the connecting block, two the equal fixedly connected with fixture block in one side that the connecting block departed from mutually, the one end of fixture block runs through the installation piece and extends to the outside of installation piece, one side of fixture block sets up the arcwall face.

Preferably, a second elastic piece is fixedly connected between the two connecting blocks, and a fixing rope is fixedly connected on one opposite side of each connecting block.

Preferably, the inside in piston rod is provided with the cylindricality hole, the inside in cylindricality hole slides and is provided with the transmission piece, fixed rope with one side fixed connection of transmission piece, the opposite side fixedly connected with transmission rope of transmission piece, the one end and the movable block fixed connection of transmission rope.

Preferably, the fixed head includes the fixed block, the fixed slot has been seted up to fixed block one side, the card locked groove has all been seted up to the both sides of fixed slot inner wall.

Preferably, the other side of the fixed head is fixedly connected with a fixed ring piece, and the fixed ring piece is fixedly connected with the energy-absorbing chain part.

Compared with the related art, the self-adaptive constant-resistance interception system suitable for bridge anti-collision interception has the following beneficial effects:

the invention provides an adaptive constant-resistance interception system suitable for bridge anti-collision interception, which is characterized in that an interception net is arranged to be matched with a support buoy, when a ship acts on the inner side of the interception net, the outer side of the interception net is lifted to net up the head of the ship and block the head of the ship, meanwhile, a constant-resistance energy absorption chain is arranged to gradually absorb and slow the acting force of the ship through a plurality of buffer connecting pieces, the acting force of the ship is reduced, and the ship is gradually stopped by being matched with a sinking anchor piece, so that a better interception effect is achieved.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of an adaptive constant-resistance interception system suitable for bridge anti-collision interception according to the present invention;

FIG. 2 is a schematic structural view of a mooring buoy provided by the present invention;

FIG. 3 is a schematic structural diagram of the constant resistance energy absorbing chain shown in FIG. 2;

FIG. 4 is a schematic structural diagram of a second embodiment of an adaptive constant-resistance interception system suitable for bridge anti-collision interception according to the present invention;

FIG. 5 is a schematic structural view of the female connector shown in FIG. 4;

FIG. 6 is a cross-sectional view of the female connector shown in FIG. 5;

FIG. 7 is an enlarged view of portion A shown in FIG. 6;

FIG. 8 is a schematic view of the portion of FIG. 6;

FIG. 9 is a schematic structural diagram of a third embodiment of an adaptive constant-resistance interception system suitable for bridge anti-collision interception according to the present invention;

fig. 10 is a schematic structural view of the buffer cylinder shown in fig. 1.

Reference numbers in the figures:

1. a mooring buoy, 101, a body, 102, a connecting arm,

2. a supporting float bowl 3 and an interception net,

4. a constant-resistance energy absorption chain 41, an energy absorption chain part 42, a buffer connecting piece 43, a connecting chain part,

5. the sinking anchor pieces are used for sinking the anchor pieces,

6. energy absorption connecting piece, 61, mounting cylinder, 62, piston adjusting piece, 63, piston rod, 64, drain hole, 65, driving rope, 66, driving block, 67, first elastic piece,

621. a piston block 622, an elastic block 623, a push rod 624, a movable block,

7. a fixing head 71, a fixing block 72, a fixing groove 73, a locking groove,

8. a locking part 81, an installation block 82, a connecting block 83, a clamping block 84, a second elastic element 85 and a fixing rope,

9. seal cover, 10, buffer cylinder, 11, lower side section of thick bamboo, 12, third elastic component, 13, go-between, 14, fixed rope, 15, reference column, 16, connect rope, 17, cushion chamber.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

First embodiment

Please refer to fig. 1, fig. 2 and fig. 3 in combination, wherein fig. 1 is a schematic structural diagram of a first embodiment of an adaptive constant-resistance intercepting system for bridge anti-collision interception according to the present invention; FIG. 2 is a schematic structural view of a mooring buoy provided by the present invention; fig. 3 is a structural schematic of the constant resistance energy absorbing chain shown in fig. 2. Adaptive constant-resistance interception system suitable for bridge anti-collision interception, comprising:

the mooring floating body 1 comprises a main body 101, wherein a connecting arm 102 is arranged at the top of the main body 101;

the supporting buoys 2 are fixedly connected with each other through intercepting nets 3, the intercepting nets 3 located on one sides of the two supporting buoys 2 on the most lateral sides are fixedly connected with the mooring floating body 1, one end of one side of each intercepting net 3 is connected to the connecting arm 102, the other end of one side of each intercepting net 3 is connected to the main body 101, and the diameter of the supporting buoys 2 close to the ship body side is larger than that far away from the ship body side;

energy-absorbing chain 4 is inhaled to constant resistance, energy-absorbing chain 4 is including energy-absorbing chain portion 41 and two connecting link portions 43 to constant resistance, energy-absorbing chain portion 41 sets up the chain including the fifty percent discount, fixedly connected with buffering connecting piece 42, two between the chain that the fifty percent discount set up connecting link portion is fixed in the both sides of energy-absorbing chain portion 41, and two connecting link portion 43 respectively with mooring body 1 and heavy anchor 5 fixed connection.

A plurality of supporting buoys 2 are arranged between every two mooring floating bodies 1, preferably four supporting buoys are arranged, the weight of the supporting buoys 2 close to the side of the ship body is larger than that of the supporting buoys at the other end, a plurality of buffer connecting pieces 42 are arranged between the chains arranged in a folded manner, the buffer connecting pieces 42 can be elastic connecting ropes and the like, and the anchor sinking pieces 5 are positioned at the bottom of the water.

The working principle of the self-adaptive constant-resistance interception system suitable for bridge anti-collision interception is as follows:

when the driving direction of the ship body is wrong and the ship body acts with the interception equipment, the ship body firstly contacts with the inner side of the interception net 3, the inner side of the interception net 3 moves downwards under the gravity of the ship body, and simultaneously, the inner side is more easily submerged under the action of the interception net 3 due to the larger diameter and heavier mass of the supporting buoy 2 close to the ship body, so that the outer side end of the interception net 3 is lifted to intercept the ship body;

when the ship body continues to move forwards, the ship body drives the intercepting net 3 to move, the intercepting net 3 drives the supporting buoy 2 and the mooring floating body 1 to move, the mooring floating body 1 is pulled to gradually straighten the constant-resistance energy absorption chain 4, the doubled chains in the energy absorption chain part 41 gathered by the constant-resistance energy absorption chain 4 are gradually pulled open, the pulling force acts on the buffering connecting piece 42 when the constant-resistance energy absorption chain 1 is pulled open, the buffering connecting piece 42 generates an absorption and buffering effect on the pulling force, when the pulling force is large, the buffering connecting piece 42 is pulled apart one by one, the buffering connecting piece 42 can gradually absorb and buffer the acting force of the ship to gradually reduce the speed and stop the ship, and after the folding and chain straightening are set, the ship is stopped through the sinking anchor piece 5.

Compared with the related art, the self-adaptive constant-resistance interception system suitable for bridge anti-collision interception has the following beneficial effects:

through setting up 3 cooperation support buoys of interception net, when boats and 3 inboard functions of interception net, the outside of interception net 3 was raised this moment and is played the head net of boats, blocks it, sets up constant drag power energy absorption chain 4 simultaneously and can be through a plurality of buffering connecting pieces, absorbs the effort of boats gradually and slows down, reduces the effort of boats, and the cooperation is sunk anchor 5 and is made the boats stop gradually, has better interception effect.

Second embodiment

Referring to fig. 4, fig. 5, fig. 6, fig. 7 and fig. 8, based on the adaptive constant resistance intercepting system for bridge anti-collision interception provided in the first embodiment of the present application, a second embodiment of the present application provides another adaptive constant resistance intercepting system for bridge anti-collision interception. The second embodiment is only the preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.

Specifically, the difference that the adaptive constant resistance interception system suitable for bridge anticollision interception that the second embodiment of this application provided lies in, the adaptive constant resistance interception system suitable for bridge anticollision interception, be connected with energy-absorbing connecting piece 6 between the chain that energy-absorbing chain portion 41 symmetry set up, energy-absorbing connecting piece 6 is including an installation section of thick bamboo 61, the inside middle symmetrical fixedly connected with piston adjusting part 62 of an installation section of thick bamboo 61, piston adjusting part 62 includes piston block 621, two the equal fixedly connected with piston rod 63 in the opposite one side of piston block 621, the outside that an installation section of thick bamboo 61 and extended to an installation section of thick bamboo 61 is run through to the one end of piston rod 63.

The energy-absorbing connecting pieces 6 are provided in plurality, and the penetration positions of the piston rods 63 and the mounting cylinders 61 are sealed mechanically.

The piston rod 63 is fixedly provided with a fixed head 7 at one end outside the mounting cylinder 61 through a clamping part 8, and one end of the fixed head 7 is fixedly connected with the energy-absorbing chain part 41.

Wherein only one piston rod 63 of each energy-absorbing connecting piece 6 is fixed on the chain through the fixing head 7 matched with the locking part 8, and the other piston rod 63 is directly fixed on the chain.

Liquid discharge holes 64 are formed in two ends of the installation cylinder 61, a buffer solution is arranged in the installation cylinder 61, and a first elastic piece 67 is arranged in the installation cylinder 61 and on one side of the piston block 621.

The buffer solution enters the inside of the mounting cylinder 61 through the drain hole 64, and the first elastic member 67 is preferably a spring.

The inside of piston block 621 sets up to the cavity structure, the inside of piston block 621 is provided with movable block 624, the inside of piston block 621 and the one side fixedly connected with elastic block 622 that is located movable block 624, the opposite side fixedly connected with catch bar 623 of movable block 624, the one end of catch bar 623 runs through piston block 621 and extends to the outside of piston block 621.

The elastic block 622 is a hemispherical rubber block, and when the piston block 621 compresses the first elastic member 67 to the maximum, the pushing rod 623 and the inner wall of the mounting cylinder 61 act to push the movable block 624 to compress the elastic block 622.

The locking portion 8 comprises an installation block 81, the installation block 81 is fixed to one end of the piston rod 63, two connection blocks 82 and two connection blocks 83 are connected to two sides of the inside of the installation block 81 in a sliding mode, one side, away from each other, of each connection block 82 is fixedly connected with a fixture block 83, one end of each fixture block 83 penetrates through the installation block 81 and extends to the outside of the installation block 81, and an arc-shaped surface is arranged on one side of each fixture block 83.

One side of the fixture block 83 close to the fixing head 7 is provided with an arc-shaped surface, so that the installation is convenient.

A second elastic part 84 is fixedly connected between the two connecting blocks 82, and a fixing rope 85 is fixedly connected on one side opposite to the two connecting blocks 82.

The inside in piston rod 63 is provided with the cylindricality hole, the inside in cylindricality hole slides and is provided with drive block 66, fixed rope 85 with one side fixed connection of drive block 66, the opposite side fixedly connected with driving rope 65 of drive block 66, the one end and the movable block 624 fixed connection of driving rope 65.

When the movable block 624 is pushed by the pushing rod 623, the driving rope 65 is driven to pull the driving block 66, the driving block 66 pulls the fixing rope 85 to pull the latch block 83 out of the latch groove 73, and thus the latch part 8 is separated from the fixing head 7.

The fixing head 7 comprises a fixing block 71, a fixing groove 72 is formed in one side of the fixing block 71, and clamping and locking grooves 73 are formed in two sides of the inner wall of the fixing groove 72.

The other side of the fixed head 7 is fixedly connected with a fixed ring piece, and the fixed ring piece is fixedly connected with the energy-absorbing chain part 41.

The fixed ring part comprises two half rings which are fixed and closed through screws, one ends of the two half rings are connected with one end of the fixed head 7 through screws, and similarly, the fixed ring part is fixed on the piston rod 63 without the fixed ring part through screws and is fixed with the energy-absorbing chain part.

When the ship body pulls the energy-absorbing chain part 42, the folded chain is gradually pulled open, when the chain is pulled open, the chain pulls the two piston rods 63 towards two sides, the piston block 621 pulls the piston block 621, the piston block 621 compresses the first elastic part 67, and simultaneously liquid in the installation cylinder 61 is discharged outwards through the liquid discharge hole 64, as the diameter of the liquid discharge hole 64 is far smaller than that of the installation cylinder 61, the damping effect is generated by the driven device, double buffering is performed by matching the discharge of the liquid through the first elastic part, the absorption buffering effect on acting force of the ship body is improved, and the ship body is more easily stopped;

when the piston block 621 compresses the first elastic element 67 to the uppermost degree, the pushing rod 623 and the inner wall of the mounting cylinder 61 act to be pushed into the piston block 621, the pushing rod 623 pushes the movable block 624 to compress the elastic block 622 in the next process, meanwhile, the movable block 624 pulls the transmission rope 65, the transmission rope 65 pulls the transmission block 66, the transmission block 66 pulls the two fixing ropes 85, the two fixing ropes 85 pull the connecting block 82, so that the two clamping blocks 83 are pulled out of the clamping and locking groove 73, at the moment, the fixing head 7 is separated from the clamping and locking part 8, and the folded chain can be unfolded, so that the energy-absorbing connecting element 6 cannot be damaged when playing a buffering role;

when subsequent maintenance, can directly insert fixed head 7 inside with latch portion 8 and can accomplish the connection, used repeatedly, when inserting, the arcwall face of fixture block 83 in the both sides extrusion latch portion 8 of fixed slot 72 inner wall on the fixed block 71, make it promote connecting block 82 compression second elastic component 84, enter into the inside of installation piece 81, when inserting the back completely, this moment fixture block 83 corresponds with latch groove 73, effect through second elastic component 84 promotes connecting block 82, it is fixed to push into inside the completion of latch groove 73 with fixture block 83, and easy operation is convenient.

Third embodiment

Referring to fig. 9 and 10 in combination, based on the adaptive constant-resistance intercepting system for bridge anti-collision interception provided by the first embodiment of the present application, the second embodiment of the present application provides another adaptive constant-resistance intercepting system for bridge anti-collision interception. The third embodiment is only the preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.

Specifically, the adaptive constant resistance interception system suitable for bridge collision avoidance provided by the third embodiment of the present application is different in that the adaptive constant resistance interception system suitable for bridge collision avoidance is provided, the inside of the support buoy 2 is provided with a cavity structure, the bottom of the inside of the support buoy is fixedly connected with a positioning column 15, the positioning column 15 is slidably connected with a lower side tube 11, the upper side of the lower side tube 11 is slidably connected with a buffer tube 10, the bottom of the tube wall of the buffer tube 10 is provided with a buffer cavity 17, the top of the lower side tube 11 extends to the inside of the buffer cavity 17, the insides of the buffer tube 10 and the lower side tube 11 are provided with a third elastic member 12, and the third elastic member 12 is preferably provided as a spring;

one side of intercepting net 3 is connected with support flotation pontoon 2 through four connecting rope 16, wherein two connecting rope 16 that are located the centre run through support flotation pontoon 2 respectively with the upper and lower both sides fixed connection of lower side section of thick bamboo 11, the inner wall upside fixed connection that is located the connecting rope 16 of downside run through support flotation pontoon 2 and lower side section of thick bamboo 11 and buffer cylinder 10, the connecting rope 16 that is located the upside of the intercepting net 3 of support flotation pontoon 2 both sides runs through support flotation pontoon 2 and the inside go-between 13 fixed connection of support flotation pontoon 2, the last fixed connection fixed rope 14 of go-between 13, fixed rope 14 runs through the bottom fixed connection of the inner wall of buffer cylinder 10 with lower side section of thick bamboo 11, wherein connecting rope 16 surface cover is equipped with seal cover 9, seal cover 9 is preferred to be set up to the rubber sleeve, and length is greater than the flexible volume of third elastic component 12.

Through the inside at support flotation pontoon 2 sets up buffer cylinder and lower side section of thick bamboo 11, cooperate inside third elastic component 12, make when hull pulling interception net, 16 pulling buffer cylinders 10 of four connecting ropes of interception net and lower side section of thick bamboo 11 remove and compress third elastic component 12 to relative one side, thereby can cushion the absorption to the effort of ship, slow down the speed of ship, make the ship stop more easily, and the interception net has certain buffer power, reduce the impaired probability of interception net 3, the life of extension interception net 3.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.