CN113123298B

CN113123298B - Pier buffer stop

Info

Publication number: CN113123298B
Application number: CN202110471878.3A
Authority: CN
Inventors: 徐辉; 朱晓东; 孙晨然; 肖云飞; 张�成; 刘佳钰
Original assignee: North China Municipal Engineering Design and Research Institute Co Ltd
Current assignee: North China Municipal Engineering Design and Research Institute Co Ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2022-08-30
Anticipated expiration: 2041-04-29
Also published as: CN113123298A

Abstract

The invention relates to a pier collision avoidance device, which effectively solves the problems that a pier protection device can not work comprehensively and can not push back and the like; a plurality of radial hydraulic telescopic rods are uniformly distributed on the outer edge surface of the fixed sleeve in the circumferential direction; the hydraulic cylinders of two adjacent hydraulic telescopic rods are connected end to end through pipelines, so that the plurality of hydraulic telescopic rods can extend or contract synchronously; the outer end of each hydraulic telescopic rod is fixed with a vertical anti-collision rod; a plurality of first inclined struts are hinged between the upper end of the fixing sleeve and the upper part of the anti-collision rod, a plurality of second inclined struts are hinged between the lower end of the fixing sleeve and the lower part of the anti-collision rod, and water blocking cloth is arranged between every two adjacent first inclined struts and every two adjacent second inclined struts; the invention utilizes water to absorb energy, utilizes buoyancy to carry out reverse thrust, uses local materials fully, and has simple manufacture, low cost and good effect.

Description

Pier buffer stop

Technical Field

The invention relates to the technical field of bridge construction, in particular to a pier anti-collision device.

Background

In the conventional bridge pier collision prevention, energy absorption parts are generally arranged around the bridge pier, and energy is absorbed through the deformation of materials after collision; the following problems are generally present at present: 1. after the ship is impacted in a single direction, only one part on one side can absorb energy, the rest part is idle, the anti-collision part cannot be completely buffered, the energy-absorbing part cannot be fully utilized, the energy-absorbing effect is poor, and the bridge pier cannot be effectively protected; 2. after the collision, the anti-collision equipment is deformed and fails; or the cable is directly damaged, needs to be checked and maintained at regular time and replaced in time, cannot be automatically recovered and can be repeatedly used for many times; 3. after the impact, the ship can only be simply collapsed to absorb energy, cannot be reversely pushed, cannot change the advancing direction of the ship, and causes the problems of secondary impact and the like.

Disclosure of Invention

In view of the above situation, the present invention provides an anti-collision device for bridge piers, which can effectively solve the problems that the pier protection device cannot work fully and cannot perform a back thrust.

The technical scheme for solving the problem is that the bridge pier comprises a fixed sleeve fixed on the bridge pier; a plurality of radial hydraulic telescopic rods are uniformly distributed on the outer edge surface of the fixed sleeve in the circumferential direction; the hydraulic cylinders of two adjacent hydraulic telescopic rods are connected end to end through pipelines, so that the plurality of hydraulic telescopic rods can extend or contract synchronously; the outer end of each hydraulic telescopic rod is fixed with a vertical anti-collision rod; a plurality of first inclined struts are hinged between the upper end of the fixing sleeve and the upper part of the anti-collision rod, a plurality of second inclined struts are hinged between the lower end of the fixing sleeve and the lower part of the anti-collision rod, and water blocking cloth is arranged between every two adjacent first inclined struts and every two adjacent second inclined struts;

a plurality of support rods which are uniformly distributed and vertical in the circumferential direction penetrate through the fixed sleeve, the support rods can move up and down along the fixed sleeve, a water tank is arranged at the upper ends of the plurality of support rods, and a floating block is arranged at the lower ends of the plurality of support rods; a pump is arranged in the water tank, and a water inlet of the pump is connected with a hose arranged in water; the bottom of the water tank is provided with a through hole, and a plug capable of resetting upwards is arranged in the through hole; after the anti-collision rod is drawn close to the middle, the plug can be separated from the through hole, and the through hole is opened.

The water tank is cylindrical, the water tank is sleeved on the pier stud, a plurality of guide rods are arranged below each through hole, edges sleeved on the guide rods are arranged on the lower end face of the plug and can move up and down along the guide rods, and pressure springs capable of enabling the plug to reset upwards are arranged on the guide rods; the side wall of the plug is provided with a blind hole, an elastic pin is arranged in the blind hole, the end part of the pin is provided with an inclined plane, the pin can prevent the plug from moving downwards, the side wall of the water tank is provided with a transverse push rod corresponding to the pin, and the push rod is sleeved with a pressure spring which enables the push rod to move away from the pin; the outer end of the push rod corresponds to the anti-collision rod.

Each anti-collision rod is sleeved with two sleeves, the sleeves can move up and down along the anti-collision rods, and the first inclined support and the second inclined support are respectively hinged to the upper sleeve and the lower sleeve.

The support rod is provided with a limiting block positioned above the fixed sleeve.

And a flexible connecting belt is connected between two adjacent anti-collision rods.

The buoyancy of the floating block is equal to the gravity of the water filled in the water tank.

The fixed sleeve consists of three fan-shaped blocks, and the three fan-shaped blocks are connected through bolts.

The upper end surface of the floating block is provided with an inclined surface.

The hydraulic telescopic rod is sleeved with a spring which can enable the hydraulic telescopic rod to extend.

The invention utilizes water to absorb energy, utilizes buoyancy to carry out reverse thrust, uses local materials and makes full use of the local materials. Simple manufacture, low cost and good effect.

Drawings

Fig. 1 is a front sectional view (normal state) of the present invention.

Fig. 2 is a front sectional view (impact state) of the present invention.

Fig. 3 is a front sectional view (reverse state) of the present invention.

Fig. 4 is a partially enlarged view of a portion a in fig. 1.

FIG. 5 is a top view of the hydraulic telescopic rod, the crash bar and the fixing sleeve.

Fig. 6 is a top view of the first inclined strut, the fixing sleeve and the water retaining cloth.

Fig. 7 is a partial enlarged view of fig. 5 at B.

Detailed Description

The following describes in further detail embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1 to 6, the present invention comprises a fixing sleeve 1 fixed to a pier; a plurality of radial hydraulic telescopic rods 2 are uniformly distributed on the outer edge surface of the fixed sleeve 1; the hydraulic cylinders of two adjacent hydraulic telescopic rods 2 are connected end to end through a pipeline 3, so that the plurality of hydraulic telescopic rods 2 are synchronously extended or contracted; the outer end of each hydraulic telescopic rod 2 is fixed with a vertical anti-collision rod 4; a plurality of first inclined struts 5 are hinged between the upper end of the fixed sleeve 1 and the upper part of the anti-collision rod 4, a plurality of second inclined struts 6 are hinged between the lower end of the fixed sleeve 1 and the lower part of the anti-collision rod 4, and water blocking cloth 7 is arranged between every two adjacent first inclined struts 5 and every two adjacent second inclined struts 6;

a plurality of supporting rods 8 which are uniformly distributed on the circumference and are vertical penetrate through the fixed sleeve 1, the supporting rods 8 can move up and down along the fixed sleeve 1, a water tank 9 is installed at the upper ends of the supporting rods 8, and a floating block 10 is installed at the lower end of the supporting rods; a pump 11 is arranged in the water tank 9, and a water inlet of the pump 11 is connected with a hose arranged in water; the bottom of the water tank 9 is provided with a through hole 12, and a plug 13 capable of resetting upwards is arranged in the through hole 12; when the bumper bar 4 is drawn toward the center, the plug 13 can be separated from the through hole 12, and the through hole 12 is opened.

In order to make the bumper 4 close to the middle, the plug 13 can be separated from the through hole 12, and the through hole 12 is opened, the water tank 9 is cylindrical, the water tank 9 is sleeved on the pier stud, a plurality of guide rods 14 are arranged below each through hole 12, the lower end face of the plug 13 is provided with an edge sleeved on each guide rod 14 and can move up and down along the guide rod 14, and the guide rods 14 are provided with pressure springs capable of making the plug 13 reset upwards; a blind hole is formed in the side wall of the plug 13, an elastic pin 15 is installed in the blind hole, an inclined surface is arranged at the end part of the pin 15, the pin 15 can prevent the plug 13 from moving downwards, a transverse push rod 16 corresponding to the pin 15 is arranged on the side wall of the water tank 9, and a pressure spring enabling the push rod 16 to move away from the pin 15 is sleeved on the push rod 16; the outer end of the push rod 16 corresponds to the impact beam 4.

In order to realize that the one end that first bracing 5 and second bracing 6 are connected with crash bar 4 can slide, every crash bar 4 on the cover be equipped with two sleeves, the sleeve can reciprocate along crash bar 4, first bracing 5 and second bracing 6 articulate respectively on two upper and lower sleeves.

In order to prevent the water tank 9 from excessively descending, the support rod 8 is provided with a limit block 17 positioned above the fixed sleeve 1.

For better collision prevention, a flexible connecting band 18 is connected between two adjacent collision-prevention rods 4.

In order to reduce the load of the bridge pier, the buoyancy of the floating block 10 is equal to the gravity of the water filled in the water tank 9.

In order to fix the fixing sleeve 1 conveniently, the fixing sleeve 1 consists of three fan-shaped blocks, and the three fan-shaped blocks are connected through bolts.

In order to press the second inclined strut 6 conveniently, the upper end surface of the floating block 10 is provided with an inclined surface.

In order to accelerate the resetting of the crash bar 4 and provide better buffering effect, the hydraulic telescopic rod 2 is sleeved with a spring 19 which can extend the hydraulic telescopic rod 2.

When the device is used, the fixing sleeve 1 is fixed on the pier stud at first, and the fixing sleeve 1 is preferably exactly level with the water surface, and the whole second inclined strut 6 is completely immersed in water; the subsequent time can play a role of buffering. Then starting the pump 11, in order to realize automatic operation, a liquid level sensor can be arranged in the water tank 9, and when the water level in the water tank 9 drops, the pump 11 can be automatically started to pump water; after the water in the water tank 9 is full, the weight of the water tank 9 can be increased at this moment, and the gravity of the water tank 9 at this moment is just equal to the buoyancy of the floating block 10, and because the water tank 9 and the floating block 10 are connected with each other through the supporting rod 8, and the supporting rod 8 can move up and down, the forces of the water tank 9 and the floating block 10 are offset with each other, and the fixed block cannot be loaded with a load. Generally, the gravity of the water tank 9 can be slightly larger than the buoyancy of the floating block 10, so that the water tank 9 and the floating block 10 can be positioned at the lowest part of the travel of the device and limited by the limit block 17 on the support rod 8.

At this time, referring to fig. 1, the floating block 10 is located below the plurality of second inclined struts 6, the water tank 9 is located above the plurality of first inclined struts 5, and the water level is located at the position of the fixing sleeve 1, that is, the second inclined struts 6, and the water blocking cloth 7 between two adjacent second inclined struts 6 are located in the water, and at this time, the hydraulic telescopic rod 2 is in an extended state by default under the action of the spring 19. The crash bars 4 are now in the outer ring and are connected to each other by flexible connecting straps 18, forming a guard ring.

A buffering stage:

when a ship impacts a protective ring consisting of a plurality of crash bars 4 and a connecting band 18, the hydraulic telescopic rods 2 at the impacted position can be contracted, and because the heads and the tails of the hydraulic telescopic rods 2 are communicated through pipelines 3, referring to the attached figure 7, when one of the hydraulic telescopic rods 2 is contracted, the rest hydraulic telescopic rods 2 can also be synchronously contracted; and then all the crash bars 4 are driven to contract synchronously.

When all the crash bars 4 are contracted synchronously, the inclination angles of the first inclined strut 5 and the second inclined strut 6 are increased, that is, the structure which is formed by the plurality of inclined struts and the waterproof cloth and is similar to an umbrella shape is contracted. When the umbrella-shaped structure formed by the second inclined struts 6 and the waterproof cloth is contracted, the water retaining cloth 7 pushes water flow under the action of the water retaining cloth 7 to generate resistance, and the larger the impact force is, the stronger the resistance is and the more flexible the buffer is.

Through the deformation of a plurality of springs 19 to and the resistance that water blocking cloth 7 formed stirring of rivers, the effect to the ship buffering that plays that can be fine disperses the dynamics of ship horizontally striking simultaneously, converts the power of the upper and lower direction that promotes rivers into. The direct impact on the bridge pier is avoided.

And a backward pushing stage:

when the anti-collision rod 4 is close to the middle, the upper part of the anti-collision rod 4 can press the push rod 16, the push rod 16 moves towards the middle of the water tank 9, when the push rod 16 moves towards the middle, the elastic pin 15 on the plug 13 can be pressed, the elastic pin 15 can be contracted into the blind hole of the plug 13, the plug 13 is not blocked by the elastic pin 15, at the moment, water in the water tank 9 can press the plug 13, the plug 13 is separated from the through hole 12, the water can also flow out of the through hole 12, the flowing water can fall on the water blocking cloth 7 among the first inclined struts 5, and under the action of the gravity of the water, the first inclined struts 5 can be gradually reset; meanwhile, after the gravity of the water tank 9 becomes smaller, the floating block 10 also moves upwards and gradually extrudes the second inclined struts 6, so that the first inclined struts 5 are gradually reset, which is shown in the attached drawings 2-3.

By the water flow in the water tank 9 being dispersed, the water in the water tank 9 can reset the plurality of first inclined struts 5, and the floating block 10 can reset the plurality of second inclined struts 6, so that the crash bar 4 can be pushed outwards and can push the ship to move outwards, and the purposes of pushing the ship backwards and assisting the ship to change directions are achieved. Meanwhile, the whole device can be accelerated to reset, so that secondary impact of the ship can be effectively avoided.

A reset stage:

when the ship does not hit the bumper bar 4, the water in the water tank 9 is remained a little, the plug 13 is reset upwards under the action of the guide rod 14, the through hole 12 of the water tank 9 is closed again, meanwhile, the pump 11 is used for continuously adding water into the water tank 9, the gravity of the water tank 9 is gradually increased, the water tank 9 and the floating block 10 are gradually moved downwards and are restored to the initial state, and the automatic reset of the device is realized.

The device can realize that the whole device can absorb energy and buffer after one side is impacted; after energy is absorbed, the stored energy can be automatically utilized, and the ship is reversely pushed through the size increase of the ship; the traveling direction is changed, so that secondary collision is avoided, and secondary buffering can be performed.

In a normal state, the water tank 9 and the floating block 10 are offset, so that the load on the bridge pier can be reduced. Meanwhile, after each impact, the device can automatically return to the initial state in a short time for the next use.

This device mainly utilizes water to carry out the energy-absorbing, utilizes buoyancy and water to come simultaneously and carries out the backstepping simultaneously, and local material, make full use of. Simple manufacture, low cost and good effect.

Claims

1. An anti-collision device for a pier comprises a fixed sleeve (1) fixed on the pier, and is characterized in that a plurality of radial hydraulic telescopic rods (2) are uniformly distributed on the periphery of the outer edge surface of the fixed sleeve (1); the hydraulic cylinders of two adjacent hydraulic telescopic rods (2) are connected end to end through a pipeline (3), so that the plurality of hydraulic telescopic rods (2) are synchronously extended or contracted; the outer end of each hydraulic telescopic rod (2) is fixed with a vertical anti-collision rod (4); a plurality of first inclined struts (5) are hinged between the upper end of the fixing sleeve (1) and the upper part of the anti-collision rod (4), a plurality of second inclined struts (6) are hinged between the lower end of the fixing sleeve (1) and the lower part of the anti-collision rod (4), and water blocking cloth (7) is arranged between every two adjacent first inclined struts (5) and every two adjacent second inclined struts (6);

a plurality of vertical support rods (8) which are uniformly distributed on the circumference penetrate through the fixed sleeve (1), the support rods (8) can move up and down along the fixed sleeve (1), a water tank (9) is installed at the upper ends of the support rods (8), and a floating block (10) is installed at the lower end of the support rods; a pump (11) is arranged in the water tank (9), and a water inlet of the pump (11) is connected with a hose arranged in water; a through hole (12) is formed in the bottom of the water tank (9), and a plug (13) capable of resetting upwards is installed in the through hole (12); after the anti-collision rod (4) is drawn close to the middle, the plug (13) can be separated from the through hole (12), so that the through hole (12) is opened;

the water tank (9) is cylindrical, the water tank (9) is sleeved on a pier stud, a plurality of guide rods (14) are arranged below each through hole (12), the lower end face of the plug (13) is provided with an edge sleeved on each guide rod (14) and can move up and down along each guide rod (14), and the guide rods (14) are provided with pressure springs capable of enabling the plugs (13) to reset upwards; the side wall of the plug (13) is provided with a blind hole, an elastic pin (15) is installed in the blind hole, the end part of the pin (15) is provided with an inclined plane, the pin (15) can prevent the plug (13) from moving downwards, the side wall of the water tank (9) is provided with a transverse push rod (16) corresponding to the pin (15), and the push rod (16) is sleeved with a pressure spring which enables the push rod (16) to move away from the pin (15); the outer end of the push rod (16) corresponds to the anti-collision rod (4).

2. The anti-collision device for piers according to claim 1, wherein each anti-collision rod (4) is sleeved with two sleeves, the sleeves can move up and down along the anti-collision rod (4), and the first inclined strut (5) and the second inclined strut (6) are respectively hinged on the upper sleeve and the lower sleeve.

3. The anti-collision device for piers as claimed in claim 1, wherein the support bar (8) is provided with a stopper (17) above the fixing sleeve (1).

4. The pier collision avoidance device according to claim 1, wherein a flexible connecting band (18) is connected between two adjacent collision bars (4).

5. An anti-collision device for piers according to claim 1, wherein the buoyancy of the floating block (10) is equal to the gravity of the water tank (9) filled with water.

6. An anti-collision device for piers according to claim 1, wherein the fixing sleeve (1) is composed of three sectors, and the three sectors are connected with each other through bolts.

7. The pier collision avoidance device according to claim 1, wherein the upper end surface of the floating block (10) is provided with a slope.

8. The anti-collision device for piers according to claim 1, wherein the hydraulic telescopic rod (2) is sleeved with a spring (19) capable of extending the hydraulic telescopic rod (2).