CN117845836A

CN117845836A - Harbor pier protector

Info

Publication number: CN117845836A
Application number: CN202410198149.9A
Authority: CN
Inventors: 邵斌磊
Original assignee: Zhejiang Huazhan Research And Design Institute Co ltd
Current assignee: Zhejiang Huazhan Research And Design Institute Co ltd
Priority date: 2024-02-22
Filing date: 2024-02-22
Publication date: 2024-04-09
Anticipated expiration: 2044-02-22
Also published as: CN117845836B

Abstract

The invention relates to the technical field of bridge construction and discloses a harbor pier protection device which comprises a sliding component, wherein the sliding component is fixedly arranged on a pier, a buffer component is connected onto the sliding component in a sliding manner, the buffer component is used for slowing down the flushing of water flow to the pier, the buffer component can freely slide on the sliding component through the cooperation of the buffer component and the sliding component, an adjusting component is arranged in the buffer component, one side of the buffer component is connected with a floating component which is used for providing buoyancy for the buffer component, the floating component is positioned between the pier and the buffer component, and the buffer component can automatically rise and fall in water level through the cooperation of the sliding component and the floating component.

Description

Harbor pier protector

Technical Field

The invention relates to the technical field of bridge construction, in particular to a harbor pier protection device.

Background

With the development of traffic infrastructure, the bridge is an important passage for connecting two banks, and the safety and stability of the bridge are important. However, the scouring action of the water flow on the bridge pier may cause the bridge pier structure to be damaged, and even may cause safety accidents when serious. In order to solve this problem, devices for preventing water flow from beating the pier have been developed. The design of such devices is based mainly on a deep understanding of the water dynamics and advanced technical development. The bridge pier impact force reduction device aims to effectively reduce impact force of water flow on the bridge pier through specific structures and materials, so that service life of the bridge pier is prolonged, safe operation of the bridge is ensured, and service life of the bridge is prolonged. The protective devices fully utilize the characteristics of corrosion resistance, long service life and good structural performance of the special composite materials, and can resist various severe environments such as precipitation, sea water, sediment impact of water flow and the like in rivers or oceans. In addition, these guards are also designed to allow for lightweight and ease of installation so that they can be easily installed on a variety of bridge structures.

The scouring damage of water flow to the bridge pier not only appears on the water surface, but also can cause damage to the bridge pier by the hidden current below the water surface, and the device for preventing the water flow from beating the bridge pier is an important technical innovation in the traffic engineering field, can slow down the scouring of the water flow to the bridge pier, and provides powerful support for ensuring the safe and stable operation of the bridge. With the continuous progress of technology, such devices are expected to be further optimized and improved in the future, providing a more efficient solution for long-term maintenance of traffic infrastructure.

The existing bridge pier protection device for the harbor is easy to ignore the impact of the hidden stream below the water surface on the bridge pier when preventing wind from blowing water to flap the bridge pier, and the hidden stream impacts the bridge pier under water due to the influence of terrain, so that the impact can cause abrasion of the bridge pier and influence the safety of the bridge, thereby reducing the service life of the bridge; therefore, the existing requirements are not met, and a harbor pier protection device is provided.

Disclosure of Invention

The invention provides a harbor pier protection device which has the beneficial effects of relieving the impact of water flow which is beaten, guiding the beaten water flow to the lower part of the water surface and blocking the subsurface flow, and solves the problems that the impact of the subsurface flow on the pier is easy to ignore in the process of preventing the water flow from beating the pier, and the subsurface flow impacts the pier due to the influence of the terrain, and the impact possibly causes the abrasion of the pier to influence the safety of the bridge, thereby reducing the service life of the bridge.

The invention provides the following technical scheme: including the slip subassembly, slip subassembly fixed mounting is on the pier, sliding connection has buffer unit on the slip subassembly, buffer unit is used for slowing down the washing of rivers to the pier, be equipped with adjusting part in the buffer unit, one side of buffer unit is connected with the showy subassembly, the showy subassembly is used for providing buoyancy for buffer unit, the showy subassembly is located the centre of pier and buffer unit.

As an alternative to the harbor pier protection device of the present invention, the present invention further comprises: the sliding assembly comprises a pair of connecting rods fixedly connected with the bridge pier, the connecting rods are used for providing supporting force for the buffer assembly, and sliding grooves are formed in the connecting rods.

As an alternative to the harbor pier protection device of the present invention, the present invention further comprises: the buffering assembly comprises a sliding rod which is in sliding connection with the sliding groove, two ends of the sliding rod are fixedly connected with fixed discs, the fixed discs are rotationally connected with rotating discs, a plurality of slowing devices are fixedly installed between the rotating discs, and the slowing devices are used for slowing down the impact force of water flow.

As an alternative to the harbor pier protection device of the present invention, the present invention further comprises: and a speed reducing blade used for further reducing water flow impact is further connected between the rotating discs, and the speed reducing blade is rotatably arranged in the middle of the rotating discs.

As an alternative to the harbor pier protection device of the present invention, the present invention further comprises: the device comprises a mounting shell fixedly connected with a rotating disc, a plurality of water inlets are formed in the mounting shell, the water inlets are all located on the water facing side, a plurality of water outlets through which water passes when water flows greatly are formed in the other side of the mounting shell, the water outlets are all located on one side of a deceleration blade, a plurality of drainage plates used for guiding water flow are fixedly connected in the mounting shell, the drainage plates are used for guiding water entering the water inlets to the water outlets, and a plurality of grooves are formed in the inner side of the mounting shell.

As an alternative to the harbor pier protection device of the present invention, the present invention further comprises: the adjusting component comprises a first conical gear fixedly mounted on the mounting shell, the first conical gear is located above the water inlet, a second conical gear is connected with the first conical gear in a meshed mode, a limiting block is connected with the second conical gear in a rotating mode, the limiting block is used for limiting the moving range of the second conical gear, and the limiting block is hinged to the mounting shell.

As an alternative to the harbor pier protection device of the present invention, the present invention further comprises: one side fixedly connected with guide board of second bevel gear, the guide board adopts the arc design of conveniently downwards guiding rivers.

As an alternative to the harbor pier protection device of the present invention, the present invention further comprises: one side fixedly connected with of guide board is used for supporting the first spring of guide board, the one end fixedly connected with sliding block of first spring, sliding block and recess sliding connection, one side fixedly connected with of sliding block is used for driving the second spring that the sliding block resumes the normal position, second spring fixed mounting is in the recess.

As an alternative to the harbor pier protection device of the present invention, the present invention further comprises: the floating assembly comprises a supporting rod fixedly connected with the fixed disc, one end of the supporting rod is fixedly connected with a floating block, and the floating block is used for providing buoyancy.

The invention has the following beneficial effects:

1. this harbor pier protector can effectually be with the rivers of beating through the design of guide board, guide to the below of surface of water to blocking the rivers below the surface of water, can slowing down the washing power of dark current to the pier effectively, thereby reduce the harm of rivers to the pier, and the device all adopts corrosion resistant material preparation, is favorable to equipment extension equipment's life, and later maintenance cost is low.

2. This harbour pier protector makes the device can carry out automatically regulated according to the change of water level through floating the design of subassembly, remain the effective protection to the pier all the time, and when the impact force of rivers is greater than the support of first spring and second spring, can jack away the guide board, guide board simultaneously under the effect of first conical gear and second conical gear, make the guide board produce the slope, thereby make the rolling disc rotate, too much rivers can be guided into the deceleration leaf department, rivers slow down once more, the effect that the water impact was slowed down to the equipment is improved effectively.

3. This harbor pier protector has multiple running state according to the impact dynamics of different rivers, can handle the rivers that different dynamics were strikeed, and can shunt the rivers that strike, drive equipment with the help of the impact of rivers simultaneously and rotate for the motion form of pivoted in-process change rivers, thereby slow down the impact energy of rivers, protect the pier, increase the life of pier.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention.

FIG. 2 is a schematic view of the overall structure of the cushioning assembly of the present invention.

Fig. 3 is a schematic cross-sectional view of a mitigation device of the present invention.

Fig. 4 is a schematic cross-sectional view of a mitigation device of the present invention.

Fig. 5 is an enlarged schematic view of the structure of fig. 4 a according to the present invention.

Fig. 6 is an enlarged view of fig. 5B according to the present invention.

Fig. 7 is a schematic view of a structure of the guide plate of the present invention being lifted up.

FIG. 8 is a schematic cross-sectional view of a cushioning assembly of the present invention.

Fig. 9 is a schematic diagram of a slider structure according to the present invention.

FIG. 10 is a schematic cross-sectional view of a cushioning assembly of the present invention.

In the figure: 1. a sliding assembly; 11. a connecting rod; 12. a chute; 2. bridge piers; 3. a buffer assembly; 31. a slide bar; 32. a fixed plate; 33. a rotating disc; 34. a deceleration blade; 4. an adjustment assembly; 41. a first bevel gear; 42. a second bevel gear; 43. a limiting block; 44. a guide plate; 45. a first spring; 46. a sliding block; 47. a second spring; 5. a floatation assembly; 51. a support rod; 52. a floating block; 6. a slowing device; 61. a mounting shell; 62. a water inlet; 63. a water outlet; 64. a drainage plate; 65. a groove.

Detailed Description

The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Examples

This embodiment is intended to facilitate solving the problem that in the process of preventing the bridge pier from being hit by water flow, the impact of the subsurface flow on the bridge pier is easily ignored, in addition, due to the influence of the terrain, the subsurface flow impacts the bridge pier under water, the impact may cause abrasion of the bridge pier, the safety of the bridge is affected, and thus the service life of the bridge is reduced, please refer to fig. 1 to 10, a harbor bridge pier protection device comprises a sliding component 1, the sliding component 1 is fixedly installed on the bridge pier 2, a buffer component 3 is slidingly connected on the sliding component 1, the buffer component 3 is used for slowing down the flushing of the water flow on the bridge pier 2, when the water flow impacts the bridge pier 2, the buffer component 3 can absorb part of the impact energy, reduce the direct flushing of the water flow on the bridge pier 2, thereby protecting the bridge pier 2 from being damaged or prolonging the service life thereof, an adjusting component 4 is arranged in the buffer component 3, the adjusting component 4 can automatically adjust according to the water flow, the water flow is split, a part of the water flow rushes to the dark flow below the water surface, and the other part of the water flow enters the interior to slow down the flow speed, the adjusting function increases the adaptability and the flexibility of the device, so that the device can better cope with different water flow conditions, one side of the buffering component 3 is connected with the floating component 5, the floating component 5 is used for providing buoyancy for the buffering component 3, the floating component 5 is positioned between the bridge pier 2 and the buffering component 3, the floating component 5 can automatically adjust the position along with the change of the water level, the buffering component 3 is driven to always keep effective protection of the bridge pier 2, the design improves the adaptability and the stability of the device, can better cope with the water level fluctuation, the bridge pier protecting device realizes the multiple functions of buffering, adjusting, floating supporting and the like through a series of structure optimization design, the bridge pier 2 has the advantages of wide applicability, long service life, low maintenance, environmental friendliness and the like, and is beneficial to improving the safety and stability of the bridge pier 2 and reducing the use cost.

In this embodiment: the sliding assembly 1 comprises a pair of connecting rods 11 fixedly connected with the bridge piers 2, the connecting rods 11 are used for providing supporting force for the buffer assemblies 3, sliding grooves 12 are formed in the connecting rods 11, the guiding effect of the sliding grooves 12 ensures that the buffer assemblies 3 can move along a correct path when being impacted by water flow, clamping stagnation or excessive displacement is avoided, the buffer assemblies 3 can stably slide, the position is kept fixed under the impact of the water flow, the flushing of the bridge piers 2 by the water flow is effectively slowed down, the connecting rods 11 and the buffer assemblies 3 are integrated, the whole structure is simplified, the device is more compact and easy to install, the manufacturing cost is reduced due to the simplified design, and the maintainability of equipment is improved.

In this embodiment: the buffer component 3 comprises a sliding rod 31 which is slidably connected with the sliding groove 12, the buffer component 3 can slide up and down through the sliding rod 31 and the sliding groove 12, part of impact energy can be absorbed while sliding, the scouring force to the bridge pier 2 is reduced, both ends of the sliding rod 31 are fixedly connected with a fixed disc 32, the fixed disc 32 is rotationally connected with a rotating disc 33, the rotating disc 33 is designed to allow the rotating discs to rotate under the impact of water flow, the impact of the water flow to the bridge pier 2 can be further dispersed and reduced, the impact of the water flow can be effectively released, the impact of the water flow can be reduced, meanwhile, vibration and abrasion caused by the water flow are also facilitated to be reduced, a plurality of damping devices 6 are fixedly arranged between the rotating discs 33, the impact of the water flow is slowed down by the damping devices 6, and the combined design of the damping devices 6 enables the water flow in the range near the bridge pier 2 to be slowed down through the water flow of the multi-angle in the rotating process of the rotating disc 33.

In this embodiment: the speed reducing blades 34 used for further reducing water flow impact are further connected between the rotating discs 33, the protection effect on the bridge pier 2 can be further enhanced through the structure of the speed reducing blades 34, the speed and the kinetic energy of water flow can be effectively reduced by the speed reducing blades 34, the impact force on the bridge pier 2 is reduced, the service life of the bridge pier 2 is prolonged, the speed reducing blades 34 are rotatably arranged in the middle of the rotating discs 33, the distribution of water flow around the bridge pier 2 can be optimized through the design of the speed reducing blades 34, the turbulence is reduced, the flushing effect of the water flow on the bridge pier 2 is reduced, the stability and the reliability of the whole protection device are improved, and the continuous effective protection of the bridge pier 2 is ensured.

In this embodiment: the damping device 6 comprises a mounting shell 61 fixedly connected with the rotating disc 33, a plurality of water inlets 62 are formed in the mounting shell 61, the water inlets 62 are all located on the water facing side, the water facing side is located on the water facing side and can conveniently enter water when water flows are impacted, a plurality of water outlets 63 through which water passes are formed in the other side of the mounting shell 61, the water outlets 63 are all located on one side of the decelerating leaves 34, the water flows can flow to the decelerating leaves 34 through the water outlets 63, the water flows flow can flow to the decelerating leaves 34 through the design of the water outlets 63, a plurality of drainage plates 64 used for guiding the water flow are fixedly connected in the mounting shell 61, the water flow can be guided to the water outlets 63 after entering through the water inlets 62, the water flow can be discharged, the drainage plates 64 are used for guiding the water entering the water inlets 62 to the water outlets 63, a plurality of grooves 65 are formed in the inner side of the mounting shell 61, the damping device 6 can efficiently buffer and disperse the impact of the water flow to the bridge pier 2 through the combined design of the water inlets 62, the water inlets 63 and the drainage plates 64 are reduced, the damage to the bridge pier 2 is reduced, the damping device 6 is relatively simple in structure and easy to manufacture, the device 6 is different in manufacturing cost and the impact strength and different from the bridge pier 2 can be easily relieved, the device is different in the impact strength and the device is not easy to be protected, and the device is different in the impact and the impact strength and the device is different in the performance and the protection from the device is different in the type and the type from the device.

In this embodiment: the adjusting component 4 comprises a first conical gear 41 fixedly arranged on the mounting shell 61, the first conical gear 41 is positioned above the water inlet 62, the first conical gear 41 is connected with a second conical gear 42 in a meshed mode, the adjusting component can achieve multi-angle adjustment through the meshed connection of the first conical gear 41 and the second conical gear 42, the adjusting component can better adapt to the conditions of various different-intensity water flow impacts, the second conical gear 42 is rotatably connected with a limiting block 43, the limiting block 43 is designed to provide a protection space for the first conical gear 41 and the second conical gear 42, the limiting block 43 is used for limiting the movable range of the second conical gear 42, the second conical gear 42 cannot deviate from a preset sliding range, the limiting block 43 is hinged with the mounting shell 61, the adjusting component is flexibly adjusted through the meshed connection of the first conical gear 41 and the second conical gear 42 and the design of the limiting block 43, and the adaptability and stability of the device are improved.

In this embodiment: one side fixedly connected with guide board 44 of second bevel gear 42, guide board 44 adopts the arc design of conveniently leading rivers downwards, the rivers that make strike through the design of guide board 44 arc form can lead to down to strike, can slow down the impact force of the surperficial undercurrent of surface of water to pier 2, this kind of design helps changing the direction of rivers, make it pass through the device more smoothly, reduce the direct impact to pier 2, through the arc design of guide board 44, can optimize the route of rivers, make it accord with the buffering and the dispersion requirement of device more, this kind of design has simplified the structure, the energy efficiency ratio of device is improved and the protective effect, be favorable to protecting pier 2 from the impact of rivers.

In this embodiment: one side fixedly connected with of guide board 44 is used for supporting guide board 44's first spring 45, when the impact force of rivers is too big and the impact force of rivers is greater than the support of first spring 45, can make guide board 44 open water inlet 62, and guide board 44 inclines, the one end fixedly connected with sliding block 46 of first spring 45, sliding block 46 and recess 65 sliding connection, one side fixedly connected with of sliding block 46 is used for driving sliding block 46 and resumes the second spring 47 of normal position, make the impact force of rivers be less than the support of first spring 45 through the design of second spring 47, assist guide board 44 to come back to normal position, the elasticity of second spring 47 just can promote sliding block 46 and resume the normal position, second spring 47 fixed mounting is in recess 65, and this simple structure is compact, be convenient for make and maintain, long-term operation cost has been reduced, the design through second spring 47 makes first spring 45 also can be in the best supporting state to inclined guide board 44, and the elasticity of second spring 47 just can drive sliding block 46 and resume initial state.

In this embodiment: the floating assembly 5 comprises the supporting rod 51 fixedly connected with the fixed disc 32, the stability of the buffer assembly 3 in water is enhanced by the supporting rod 51, the buffer assembly 3 can not be greatly displaced or overturned when being impacted by water, one end of the supporting rod 51 is fixedly connected with the floating block 52, the floating block 52 can provide buoyancy and simultaneously can maintain the integral stability of the buffer assembly 3, the floating block 52 is used for providing buoyancy, the buffer assembly 3 can be always positioned on the impact path of water, the impact of the water on the bridge pier 2 is effectively slowed down, the buffer assembly 3 has better adaptability to water depth, the floating assembly 5 can be widely applied to various water environments, the dual functions of providing buoyancy and maintaining stability are realized through the combined design of the supporting rod 51 and the floating block 52, the protection effect of the buffer assembly 3 is enhanced, the adaptability and the stability are also improved, and the floating assembly has important significance in protecting the bridge pier 2 from water impact.

Working principle: firstly, the device is arranged on the upstream side of a harbor pier 2, then the buffer assembly 3 is kept at a proper water level under the action of the floating block 52 and the supporting rod 51, so that the impact of water flow can just impact on the buffer assembly 3, and the floating block 52 is designed so that the floating block 52 can be lifted to drive the buffer assembly to lift up through the sliding of the sliding chute 12 when the harbor swells, and the buffer assembly is driven to fall down through the falling of the floating block 52 when the harbor swells, so that the buffer assembly and the water surface are always kept in the optimal working state, and the buffer of the impact force of the water flow is facilitated.

When the impact force of the water flow is smaller than that of the first spring 45 and the guide plate 44 is not opened, the water flow impacts the arc-shaped guide plate 44 after rushing into the water inlet 62, most of the water flow is guided to the obliquely downward impact through the guide of the arc-shaped guide plate 44, so that the water flow can impact the hidden stream below the water surface, the impact force of the hidden stream is reduced, and the impact force of the water flow on the bridge pier 2 can be effectively slowed down. At this time, the redundant water flow can flow to the deceleration blades 34 through the gaps between the deceleration devices 6, at this time, if the impact force of the water flow is small, the water flow flowing to the deceleration blades 34 will not drive the deceleration blades 34 to rotate, if the water flow has larger impact force, the deceleration blades 34 can rotate, the impact force of the water flow is dispersed by changing the movement form of the water flow through rotation, and the impact energy of the water flow is eliminated, so that the impact force of the water flow received by the water side of the pier 2 is slowed down, and the impact of the water flow around the pier 2 can be slowed down.

When the water flow impact force is greater than the supporting force of the first spring 45, and the guide plate 44 is ejected after entering the water inlet 62, at the moment, the first spring 45 deforms, the guide plate 44 is ejected and drives the second conical gear 42 to rotate, the limiting block 43 is connected with the second conical gear 42 in a meshed manner through the second conical gear 42 and the first conical gear 41, and the limiting block 43 is hinged with the mounting shell 61, so that the limiting block 43 limits the position of the second conical gear 42, the second conical gear 42 drives the guide plate 44 to rotate around the first conical gear 41, the second conical gear 42 rotates on its own while the second conical gear 42 rotates around the first conical gear 41, the second bevel gear 42 rotates around the first bevel gear 41 and rotates to drive the guide plate 44 to incline, the rotation of the second bevel gear 42 changes the inclined angle of the guide plate 44, the guide plate 44 rotates in an inclined way to drive the sliding block 46 to slide in the groove 65, the sliding block 46 slides to deform the second spring 47, the rotation of the second bevel gear 42 drives the guide plate 44 to incline in the water inlet 62, when water flow impacts the guide plate 44, the angle of impact water flow can be changed, most of the water flow is guided to flow obliquely downwards through the guide of the guide plate 44, the water flow guided to the obliquely downwards impacts the hidden flow below the water surface, so that the hidden flow below the water surface is intercepted and decelerated, the flushing of the water flow to the lower part of the bridge pier 2 is slowed down, at the moment, the impact of the water flow on the inclined guide plate 44 is realized, make rivers can drive the rolling disc 33 through guide board 44 and rotate, drive the rotation of a plurality of devices 6 that slow down through rolling disc 33, make the impact force of rivers dispersed, simultaneously the rivers are when dashing to guide board 44, after the guide rivers are strikeed to oblique below, unnecessary rivers can make the rivers dash to drainage plate 64 through the guide of guide board 44, under the guide to rivers through drainage plate 64, make rivers flow to delivery port 63, the rivers that follow delivery port 63 outflow and from slowing down the rivers that pass between the device 6, finally can dash together to the speed reduction leaf 34, the rotation of rethread speed reduction leaf 34, make the impact force of rivers reduced, thereby prevent that the rivers from striking too big and causing the harm to pier 2.

When the impact force of the water flow is reduced and smaller than the supporting force of the first spring 45, the guide plate 44 is rotated and restored to the original position under the action of the first spring 45, and meanwhile, the sliding block 46 is driven to restore to the original position under the action of the second spring 47, so that the supporting force of the first spring 45 on the guide plate 44 is always in the optimal state.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the scope of the invention.

Claims

1. Harbor pier protection device, including slip subassembly (1), its characterized in that: the utility model discloses a bridge pier, including bridge pier (2), slip subassembly (1) are last sliding connection has buffer subassembly (3), buffer subassembly (3) are used for slowing down the washing of rivers to bridge pier (2), be equipped with adjusting part (4) in buffer subassembly (3), one side of buffer subassembly (3) is connected with floats subassembly (5), it is used for providing buoyancy for buffer subassembly (3) to float subassembly (5), it is located the centre of bridge pier (2) and buffer subassembly (3) to float subassembly (5).

2. The harbor pier guard of claim 1, wherein: the sliding assembly (1) comprises a pair of connecting rods (11) fixedly connected with the bridge pier (2), the connecting rods (11) are used for providing supporting force for the buffer assembly (3), and sliding grooves (12) are formed in the connecting rods (11).

3. The harbor pier guard of claim 1, wherein: the buffer assembly (3) comprises a sliding rod (31) which is slidably connected with the sliding groove (12), two ends of the sliding rod (31) are fixedly connected with fixed discs (32), rotating discs (33) are rotatably connected to the fixed discs (32), a plurality of slowing devices (6) are fixedly installed between the rotating discs (33), and the slowing devices (6) are used for slowing down the impact force of water flow.

4. A harbor pier guard according to claim 3, wherein: and a speed reducing blade (34) for further reducing water flow impact is further connected between the rotating discs (33), and the speed reducing blade (34) is rotatably arranged in the middle of the rotating discs (33).

5. The harbor pier guard of claim 1, wherein: the utility model provides a slow down device (6) including installing shell (61) with rolling disc (33) fixed connection, a plurality of water inlets (62) have been seted up on installing shell (61), water inlet (62) all are located the side that faces water, a plurality of delivery ports (63) that water supply passed through when rivers were too big have been seted up to the opposite side of installing shell (61), delivery port (63) all are located deceleration leaf (34) one side, a plurality of drainage plates (64) that are used for guiding rivers of fixedly connected with in installing shell (61), drainage plates (64) are used for guiding the water that gets into water inlet (62) to delivery port (63), a plurality of recesses (65) have been seted up to the inboard of installing shell (61).

6. The harbor pier guard of claim 1, wherein: the adjusting component (4) comprises a first conical gear (41) fixedly installed on a mounting shell (61), the first conical gear (41) is located above a water inlet (62), a second conical gear (42) is connected with the first conical gear (41) in a meshed mode, a limiting block (43) is connected with the second conical gear (42) in a rotating mode, the limiting block (43) is used for limiting the moving range of the second conical gear (42), and the limiting block (43) is hinged to the mounting shell (61).

7. The harbor pier guard of claim 6, wherein: one side fixedly connected with guide board (44) of second bevel gear (42), guide board (44) adopt the arc design of conveniently downwards guiding rivers.

8. The harbor pier guard of claim 7, wherein: one side fixedly connected with of guide board (44) is used for supporting first spring (45) of guide board (44), one end fixedly connected with sliding block (46) of first spring (45), sliding block (46) and recess (65) sliding connection, one side fixedly connected with of sliding block (46) is used for driving second spring (47) that sliding block (46) resumes normal position, second spring (47) fixed mounting is in recess (65).

9. The harbor pier guard of claim 1, wherein: the floating assembly (5) comprises a supporting rod (51) fixedly connected with the fixed disc (32), one end of the supporting rod (51) is fixedly connected with a floating block (52), and the floating block (52) is used for providing buoyancy.