CN219450684U - Anti-collision device for ship lock - Google Patents

Abstract

The utility model relates to the technical field of ship lock machinery, in particular to a ship lock anti-collision device, which comprises a bottom plate, wherein one side of the bottom plate is fixedly connected with a damping box shell, two partition plates are symmetrically and fixedly connected to the inner side of the damping box shell, a communication port is formed in one side of the partition plate, which is close to the bottom plate, of the partition plates so as to enable the inside of the damping box shell to be communicated, two ends of the damping box shell are respectively and slidably connected with a guide assembly, the two guide assemblies are symmetrically arranged, the middle part of the damping box shell is slidably connected with a collision steering assembly, the collision steering assembly is in transmission connection with the guide assembly, and the inside of the damping box shell is communicated with the outside. The utility model can deflect the course of the ship after the front end of the ship collides with the device, thereby avoiding the direct collision between the ship and the ship lock.

Description

Anti-collision device for ship lock

Technical Field

The utility model relates to the technical field of ship lock machinery, in particular to a ship lock anti-collision device.

Background

The ship lock is a box-shaped hydraulic building for ensuring that ships smoothly pass through concentrated water level drop on a channel, and a plurality of the ship lock are built on rivers and canals, and are also built at estuaries entering sea and harbor basin gate positions for overcoming larger tidal range, so that the ships are prevented from being bumped onto the ship lock to cause the damage of the ship lock, and the ship lock is generally protected by using an anti-collision device in the use process.

Most of the existing ship lock anti-collision designs use tires for anti-collision, the anti-collision structure is simple, the buffering performance is poor, and therefore the ship lock anti-collision device is needed to solve.

Disclosure of Invention

The utility model aims to provide a ship lock anti-collision device which aims to solve the problems.

In order to achieve the above object, the present utility model provides the following solutions: the utility model provides a ship lock anticollision device, includes the bottom plate, bottom plate one side rigid coupling has damping case casing, damping case casing inboard symmetry rigid coupling has two baffles, the baffle is close to bottom plate one side is equipped with the intercommunication mouth, the intercommunication mouth makes the inside intercommunication of damping case casing, the both ends of damping case casing sliding connection respectively have direction subassembly, two direction subassembly symmetry sets up, damping case casing middle part sliding connection has the collision to turn to the subassembly, the collision turn to the subassembly with direction subassembly transmission is connected, the inside and outside intercommunication of damping case casing.

Preferably, the guide assembly comprises a first slide bar, the first slide bar with damping case casing sliding connection, the one end rigid coupling of first slide bar has first piston, first piston is located the baffle with damping case casing inner wall is between, the lateral wall of first piston respectively with the baffle with damping case casing relative lateral wall contact, the lateral wall of first piston respectively with the baffle with damping case casing relative lateral wall sliding connection, the one end rigid coupling that first piston kept away from the bottom plate has the one end of first elastic part, the other end of first elastic part with damping case casing's inner wall rigid coupling, first elastic part cover is established the first slide bar outside, first piston the baffle with damping case casing inner wall encloses airtight cavity and outside intercommunication through first communication port, first communication port this is in damping case casing is kept away from bottom plate one side lateral wall tip, the one end rigid coupling that first piston kept away from has the guide part, first piston is the rectangle structure, first piston is collision with the steering assembly.

Preferably, the first elastic part comprises a spring, one end of the spring is fixedly connected with the side wall of the first piston, the other end of the spring is fixedly connected with the inner wall of the damping box shell, and the spring is sleeved on the outer side of the first sliding rod.

Preferably, the guide part comprises an arc-shaped plate, the middle part of the arc-shaped plate is fixedly connected with the end part of the first sliding rod, the two arc-shaped plates are symmetrically arranged, and the arc-shaped plates are connected with a plurality of first rotating rollers in a rotating mode at equal intervals along the arc direction.

Preferably, the collision steering assembly comprises two symmetrically arranged second slide bars, the second slide bars are in sliding connection with the side wall of the damping box shell, one side of the same second piston is fixedly connected with the end part of each second slide bar, two sides of each second piston are in contact with two opposite sides of each partition board, two sides of each second piston are in sliding connection with two opposite sides of each partition board, a second closed cavity enclosed by the second pistons, the two partition boards and the inner wall of the damping box shell is communicated with the outside through a third communication port, the third communication port is formed in the middle part of one side of the damping box shell, which is far away from the bottom plate, the two second slide bars are far away from one end of the bottom plate, and one collision part is elastically connected with the second piston in a transmission manner.

Preferably, the collision part comprises a top plate, one side of the top plate is fixedly connected with the end parts of the two second sliding rods, two ends of the top plate are fixedly connected with one ends of first elastic telescopic rods respectively, the other ends of the first elastic telescopic rods are fixedly connected with the outer sides of the side walls of the damping box shell, which are far away from one side of the bottom plate, and the top plate is far away from one side of the bottom plate, and is provided with an inclined guide part.

Preferably, the inclined guiding part comprises two symmetrically arranged second elastic telescopic rods, one ends of the two second elastic telescopic rods are hinged to one side of the top plate, the other ends of the two second elastic telescopic rods are hinged to the same inclined plate, and two ends of the inclined plate are symmetrically connected with a plurality of second rotating rollers in a rotating mode.

Preferably, a magnetic part is arranged between the second piston and the side wall of the damping box shell, which is close to the side of the bottom plate, the magnetic part comprises a first magnet and a second magnet, the first magnet is fixedly connected with the inner side of the side wall of the damping box shell, the second magnet is fixedly connected with the second piston, which is close to the side of the bottom plate, and the polarities of the opposite sides of the first magnet and the second magnet are the same.

Preferably, the damping case casing with be close to on the perpendicular arbitrary lateral wall of bottom plate the second intercommunication mouth has been seted up, damping case shells inner wall, two first piston, two baffle with the airtight cavity of third that the second piston encloses is passed through the second intercommunication mouth communicates with outside, second intercommunication mouth department articulates there is the apron, the apron size is greater than second intercommunication mouth size, the apron with second intercommunication mouth articulates the department and is equipped with the torsional spring, the apron is located damping case casing is inside.

The utility model has the following technical effects: when the ship lock anti-collision device is used, the plurality of ship locks are fixedly connected to the side walls of the ship locks through the bottom plates, and the ship locks sink into water, so that the inside of the damping box shell is filled with water, after the front end of a ship collides with the collision steering assembly, the collision steering assembly compresses relative to the damping box shell, the advancing direction of the front end of the ship is changed, meanwhile, the collision steering assembly drives the guide assemblies at the two ends of the damping box shell to extend outwards, the guide assemblies are contacted with the front end of the ship and push the ship away from the ship locks, the guide assemblies further adjust the direction of the front end of the ship, and finally, the ship deflects the course of the ship under the action of the ship, so that the ship is prevented from directly colliding with the ship locks.

Drawings

For a clearer description of an embodiment of the utility model or of the solutions of the prior art, the drawings that are needed in the embodiment will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged view of a portion of the utility model at A in FIG. 1;

FIG. 3 is an enlarged view of a portion of the utility model at B in FIG. 1;

wherein, 1, the bottom plate; 2. a damping case housing; 3. an expansion bolt; 4. a first slide bar; 5. a first piston; 6. an arc-shaped plate; 7. a first rotating roller; 8. a first communication port; 9. a first magnet; 10. a partition plate; 11. a first elastic telescopic rod; 12. a second piston; 13. a second magnet; 14. a second slide bar; 15. a top plate; 16. a second elastic telescopic rod; 17. an inclined plate; 18. a second rotating roller; 19. a spring; 20. a second communication port; 21. a third communication port; 22. and a cover plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

Referring to fig. 1 to 3, the utility model provides a ship lock anti-collision device, which comprises a bottom plate 1, wherein one side of the bottom plate 1 is fixedly connected with a damping box shell 2, the inner side of the damping box shell 2 is symmetrically and fixedly connected with two partition plates 10, one side of the partition plates 10 close to the bottom plate 1 is provided with a communication port, the communication port enables the inside of the damping box shell 2 to be communicated, two ends of the damping box shell 2 are respectively and slidably connected with guide assemblies, the two guide assemblies are symmetrically arranged, the middle part of the damping box shell 2 is slidably connected with a collision steering assembly, the collision steering assembly is in transmission connection with the guide assemblies, and the inside of the damping box shell 2 is communicated with the outside.

When the ship lock anti-collision device is used, the plurality of ship locks are fixedly connected to the side walls of the ship locks through the bottom plates 1, and the ship locks sink into water, so that the inside of the damping box shell 2 is filled with water, after the front end of a ship collides with the collision steering assembly, the collision steering assembly compresses relative to the damping box shell 2, the advancing direction of the front end of the ship is changed, meanwhile, the collision steering assembly drives the guide assemblies at the two ends of the damping box shell 2 to extend outwards, the guide assemblies are contacted with the front end of the ship and push the ship away from the ship locks, the guide assemblies further adjust the direction of the front end of the ship, and finally, the ship deflects the course of the ship under the action of the ship, so that the ship is prevented from directly colliding with the ship locks.

The bottom plate 1 is fixedly connected to the side wall of the ship lock through a plurality of expansion bolts 3.

Further optimizing scheme, the direction subassembly includes first slide bar 4, first slide bar 4 and damping case casing 2 sliding connection, the one end rigid coupling of first slide bar 4 has first piston 5, first piston 5 is located between baffle 10 and the damping case casing 2 inner wall, the lateral wall of first piston 5 contacts with baffle 10 and the lateral wall that damping case casing 2 is relative respectively, the lateral wall of first piston 5 is with baffle 10 and the lateral wall sliding connection that damping case casing 2 is relative respectively, the one end rigid coupling that bottom plate 1 was kept away from to first piston 5 has the one end of first elastic part, the other end rigid coupling of first elastic part and damping case casing 2 inner wall rigid coupling, first elastic part cover is established in the outside of first slide bar 4, airtight cavity that first piston 5, baffle 10 and damping case casing 2 inner wall enclose communicates with outside through first intercommunication mouth 8, this is kept away from bottom plate 1 one side lateral wall tip at damping case casing 2, the one end rigid coupling of first slide bar 4 is kept away from first piston 5 has the direction portion, first piston 5 is rectangular structure, first piston 5 is connected with the collision subassembly transmission.

In a further optimized scheme, the first elastic part comprises a spring 19, one end of the spring 19 is fixedly connected with the side wall of the first piston 5, the other end of the spring 19 is fixedly connected with the inner wall of the damping box shell 2, and the spring 19 is sleeved outside the first sliding rod 4.

Further optimizing scheme, the guide portion includes arc 6, and arc 6 middle part and the tip rigid coupling of first slide bar 4, and two arc 6 symmetry set up, and arc 6 is connected with a plurality of first rotating rollers 7 along the equidistant rotation of circular arc direction.

During initial state, the one end that collision steering assembly kept away from bottom plate 1 is located the outside of arc 6 for the front end of ship can collide with collision steering assembly at first, after the ship collided collision steering assembly, the ship is when producing the deflection of other directions, continue to make collision steering assembly to be close to the direction removal of bottom plate 1, and then make two arcs 6 can be to the direction removal of keeping away from bottom plate 1, contact with the lateral wall of the front end of ship after deflecting, and promote the front end of ship and keep away from the lock, the lateral wall of the front end of ship contacts with a plurality of first rotating rollers 7 of rotating connection on arc 6 simultaneously, can make the lateral wall of the front end of ship produce the slip with arc 6, and then avoid the wearing and tearing of arc 6, the life of extension arc 6.

In the initial state, the spring 19 is in a normal length state, and when the collision steering assembly pushes the first sliding rod 4 through the first piston 5 to drive the arc-shaped plate 6 to move away from the bottom plate 1, the spring 19 is compressed.

As shown in fig. 1, the first piston 5, the partition plate 10, the inner wall, parallel to the bottom plate 1, of the side, away from the bottom plate 1, of the damping box housing 2 and the closed cavity enclosed by the inner wall, perpendicular to the bottom plate 1, of the damping box housing 2 enable water in the closed cavity to be discharged through the first communication port 8, so that balance of water pressure inside and outside the damping box housing 2 is ensured.

When the ship is pushed away, the collision steering assembly is not pushed any more, the first piston 5 loses power, the spring 19 is restored to the original length, the first piston 5 is pushed to move towards the direction close to the bottom plate 1, at the moment, the spring 19 serves as a power source, and when the first piston 5 is pushed to move towards the direction close to the bottom plate 1, the collision steering assembly is restored to the initial position.

Further optimizing scheme, the collision steering assembly includes two symmetrical second slide bars 14 that set up, second slide bar 14 and damping case casing 2 lateral wall sliding connection, the tip rigid coupling of two second slide bars 14 has one side of same second piston 12, the both sides of second piston 12 are contacted with the opposite side of two baffles 10, the both sides of second piston 12 are with the opposite side sliding connection of two baffles 10, second piston 12, the airtight cavity of second that the inner wall of two baffles 10 and damping case casing 2 encloses communicates with the outside through third intercommunication mouth 21, third intercommunication mouth 21 is seted up at damping case casing 2 and is kept away from bottom plate 1 one side middle part, two second slide bars 14 keep away from bottom plate 1 one end elastic connection has same collision portion, second piston 12 is connected with first piston 5 transmission.

Further optimizing scheme, the collision portion includes roof 15, and the tip rigid coupling of roof 15 one side and two second slide bars 14, the both ends rigid coupling of roof 15 have the one end of first elastic expansion link 11 respectively, and the lateral wall outside rigid coupling of the other end of first elastic expansion link 11 and damping case casing 2 side of keeping away from bottom plate 1 is equipped with slope guiding portion in roof 15 side of keeping away from bottom plate 1.

Further optimizing scheme, the slope direction portion includes the second elastic telescopic link 16 that two symmetries set up, and the one end of two second elastic telescopic links 16 is all articulated with one side of roof 15, and the other end of two second elastic telescopic link 16 articulates there is same hang plate 17, and the both ends symmetry rotation of hang plate 17 is connected with a plurality of second live-rollers 18.

In the initial state, the inclined plate 17 is located at the forefront end far away from the direction of the bottom plate 1 and is preferentially contacted with the front end of the ship, when the front end of the ship collides with the inclined plate 17, the inclined plate 17 is extruded to move towards the direction close to the bottom plate 1, at the moment, the two symmetrically arranged second elastic telescopic rods 16 are compressed to different degrees, so that the inclined plate 17 is inclined, the front end of the ship is deflected and moves towards one side of the inclined plate 17, a plurality of second rotating rollers 18 at any one end of the inclined plate 17 are contacted with the front end of the ship after deflection, and further long-time friction between the front end of the ship and the inclined plate 17 is avoided, and the service life of the inclined plate 17 is prolonged.

The inclined plate 17 pushes the top plate 15 to move towards the direction approaching the bottom plate 1 through two second elastic telescopic rods 16, and the top plate 15 pushes the second piston 12 to slide along the side walls of the two partition plates 10 through two second sliding rods 14 which are symmetrically arranged.

As shown in fig. 1, the second piston 12, the two partition plates 10 and the inner wall of the damping box housing 2, which is far away from the side of the bottom plate 1 and parallel to the bottom plate 1, form a completely closed second closed cavity, and the second closed cavity is communicated with the outside through a third communication port 21 arranged in the middle of the side wall of the damping box housing 2, which is far away from the side of the bottom plate 1, so that the second closed cavity can suck or discharge water through the movement of the second piston 12 to ensure the balance between the inside and the outside water pressure of the damping box housing 2.

In the initial state, the first elastic telescopic rod 11 is of a normal length, when the front end of the ship collides with the inclined plate 17, the top plate 15 moves towards the direction close to the bottom plate 1 so that the first elastic telescopic rod 11 is compressed, and when the ship is far away, the inclined plate 17 can be restored to the initial position under the action of restoring the original length of the first elastic telescopic rod 11.

In a further optimized scheme, a magnetic part is arranged between the second piston 12 and the side wall of the damping box shell 2, which is close to the side wall of the bottom plate 1, the magnetic part comprises a first magnet 9 and a second magnet 13, the first magnet 9 is fixedly connected with the inner side of the side wall of the damping box shell 2, the second magnet 13 is fixedly connected with the side of the second piston 12, which is close to the bottom plate 1, and the polarities of the opposite sides of the first magnet 9 and the second magnet 13 are the same.

In order to avoid collision between the second piston 12 and the inner wall of the damping box shell 2, which is close to one side of the bottom plate 1 and is parallel to the bottom plate 1, a first magnet 9 and a second magnet 13 are arranged between the second piston 12 and the side wall of the damping box shell 2, which is close to one side of the bottom plate 1, and the polarities of the opposite sides of the first magnet 9 and the second magnet 13 are the same, so that repulsive force can be generated after the first magnet 9 and the second magnet 13 are close to each other, and further collision between the second piston 12 and the inner wall of the damping box shell 2 is avoided.

Further optimizing scheme, the second communication port 20 has been seted up to the one end that is close to bottom plate 1 on damping case casing 2 and the arbitrary lateral wall of bottom plate 1 vertically, damping case casing 2 inner wall, two first pistons 5, the third airtight cavity that two baffles 10 and second piston 12 enclose communicates with the outside through second communication port 20, second communication port 20 department articulates there is apron 22, apron 22 size is greater than second communication port 20 size, apron 22 is equipped with the torsional spring with second communication port 20 articulated department, apron 22 is located damping case casing 2 inside.

As shown in fig. 1, since the device is used underwater, water needs to be filled into the inner wall of the damping box housing 2 through the second communication port 20 formed at one end, close to the bottom plate 1, of any side wall, perpendicular to the bottom plate 1, of the damping box housing 2.

Because the first piston 5 contacts with the side wall of the damping box shell 2 and the partition plates 10, the two partition plates 10 contact with the side wall of the second piston 12, the inside of the damping box shell 2 is practically divided into 4 sealing cavities which are not communicated with each other through the partition plates 10, the first piston 5 and the second piston 12, a third sealing cavity which is formed by the inner wall of the damping box shell 2, the two first pistons 5, the two partition plates 10 and the second piston 12 is communicated with the outside through the second communication port 20, water is conveniently injected into the third sealing cavity, a cover plate 22 is hinged at the second communication port 20, the size of the cover plate 22 is larger than that of the second communication port 20, the cover plate 22 can seal the second communication port 20, a torsion spring is arranged at the hinge position of the cover plate 22 and the second communication port 20, when the second piston 12 moves towards the side close to the bottom plate 1, the size of the cover plate 22 is larger than that of the second communication port 20, so that water in the third closed cavity cannot be discharged, the first piston 5 is pushed to move away from the bottom plate 1, the first communication port 8 and the third communication port 21 are respectively used for discharging the closed cavity and the second closed cavity, after the ship is away from the ship, the first piston 5 and the second piston 12 are respectively restored to the initial positions under the action of the spring 19 and the first elastic telescopic rod 11, and at the moment, if the water pressure in the third closed cavity is lower than the external water pressure, the external water can jack the cover plate 22 through the second communication port 20 and enter the third closed cavity to supplement the water pressure.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.

Claims (9)

1. The utility model provides a lock anticollision device which characterized in that: including bottom plate (1), bottom plate (1) one side rigid coupling has damping case casing (2), damping case casing (2) inboard symmetry rigid coupling has two baffles (10), baffle (10) are close to bottom plate (1) one side is equipped with the intercommunication mouth, the intercommunication mouth makes damping case casing (2) inside intercommunication, sliding connection has direction subassembly respectively at the both ends of damping case casing (2), two direction subassembly symmetry sets up, damping case casing (2) middle part sliding connection has collision to turn to the subassembly, collision turn to the subassembly with direction subassembly transmission is connected, damping case casing (2) inside and outside intercommunication.

2. The lock anti-collision device of claim 1, wherein: the guide assembly comprises a first slide bar (4), the first slide bar (4) is in sliding connection with the damping box shell (2), one end of the first slide bar (4) is fixedly connected with a first piston (5), the first piston (5) is positioned between the partition board (10) and the inner wall of the damping box shell (2), the side walls of the first piston (5) are respectively contacted with the side walls of the partition board (10) opposite to the damping box shell (2), the side walls of the first piston (5) are respectively in sliding connection with the side walls of the partition board (10) opposite to the damping box shell (2), one end of the first piston (5) far away from the bottom board (1) is fixedly connected with one end of a first elastic part, the other end of the first elastic part is fixedly connected with the inner wall of the damping box shell (2), the first piston (5), the partition board (10) and the inner wall of the damping box shell (2) are respectively contacted with the side walls of the damping box shell (2), the side walls of the first piston (5) are respectively connected with the first connecting port (8), the side walls of the first piston (5) are fixedly connected with one side wall of the damping box shell (2) far from the first connecting port (8), the first connecting port (8) is far from the first connecting port (8), the first piston (5) is in transmission connection with the collision steering assembly.

3. The lock anti-collision device of claim 2, wherein: the first elastic part comprises a spring (19), one end of the spring (19) is fixedly connected with the side wall of the first piston (5), the other end of the spring (19) is fixedly connected with the inner wall of the damping box shell (2), and the spring (19) is sleeved outside the first sliding rod (4).

4. The lock anti-collision device of claim 2, wherein: the guide part comprises an arc-shaped plate (6), the middle part of the arc-shaped plate (6) is fixedly connected with the end part of the first sliding rod (4), the two arc-shaped plates (6) are symmetrically arranged, and the arc-shaped plates (6) are connected with a plurality of first rotating rollers (7) at equal intervals along the arc direction.

5. The lock anti-collision device of claim 2, wherein: the collision steering assembly comprises two symmetrically arranged second slide bars (14), the second slide bars (14) are in sliding connection with the side walls of the damping box shell (2), two end parts of the second slide bars (14) are fixedly connected with one side of the same second piston (12), two sides of the second piston (12) are in contact with two opposite sides of the partition board (10), two sides of the second piston (12) are in sliding connection with two opposite sides of the partition board (10), the second piston (12), two partition boards (10) and a second closed cavity formed by the inner walls of the damping box shell (2) in a surrounding mode are communicated with the outside through a third communication opening (21), the third communication opening (21) is formed in the middle of one side of the damping box shell (2) away from the bottom board (1), two second slide bars (14) are away from one end of the bottom board (1) and are elastically connected with the same collision part, and the second piston (12) is in transmission connection with the first piston (5).

6. The lock anti-collision device of claim 5, wherein: the collision part comprises a top plate (15), one side of the top plate (15) is fixedly connected with the end parts of two second sliding rods (14), one end of a first elastic telescopic rod (11) is fixedly connected with the two ends of the top plate (15) respectively, the other end of the first elastic telescopic rod (11) is fixedly connected with the outer side of the side wall, away from the bottom plate (1), of the damping box shell (2), and the top plate (15) is away from the bottom plate (1) and provided with an inclined guide part.

7. The lock anti-collision device of claim 6, wherein: the inclined guide part comprises two symmetrically arranged second elastic telescopic rods (16), one ends of the two second elastic telescopic rods (16) are hinged to one side of the top plate (15), the other ends of the two second elastic telescopic rods (16) are hinged to the same inclined plate (17), and two ends of the inclined plate (17) are symmetrically connected with a plurality of second rotating rollers (18) in a rotating mode.

8. The lock anti-collision device of claim 5, wherein: the damping box comprises a damping box body (2), and is characterized in that a magnetic part is arranged between the second piston (12) and the side wall of the damping box body (2) close to one side of the bottom plate (1), the magnetic part comprises a first magnet (9) and a second magnet (13), the first magnet (9) is fixedly connected with the inner side of the side wall of the damping box body (2), the second magnet (13) is fixedly connected with the second piston (12) close to one side of the bottom plate (1), and the polarities of the opposite sides of the first magnet (9) and the second magnet (13) are the same.

9. The lock anti-collision device of claim 5, wherein: the damping case casing (2) with be close to on the arbitrary lateral wall of bottom plate (1) the second intercommunication mouth (20) have been seted up to the one end of bottom plate (1), damping case casing (2) inner wall, two first piston (5), two sealed cavity that baffle (10) and second piston (12) enclose is through second intercommunication mouth (20) and outside intercommunication, second intercommunication mouth (20) department articulates there is apron (22), apron (22) size is greater than second intercommunication mouth (20) size, apron (22) with second intercommunication mouth (20) articulated department is equipped with the torsional spring, apron (22) are located damping case casing (2) are inside.