CN218842845U

CN218842845U - A buffer stop for bridge pier column

Info

Publication number: CN218842845U
Application number: CN202222334585.3U
Authority: CN
Inventors: 杨步仁; 陈恺
Original assignee: Lianyungang Technical College
Current assignee: Lianyungang Technical College
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2023-04-11
Anticipated expiration: 2032-09-02

Abstract

The utility model provides an buffer stop for bridge pier stud, include: the anti-collision device comprises an anti-collision device body, wherein the anti-collision device body comprises an air bag cavity, a buckle a and a buckle b, one end of the air bag cavity is fixedly connected with the buckle a, the other end of the air bag cavity is fixedly connected with the buckle b, the air bag cavity is detachably connected with the buckle a and the buckle b, the air bag cavity comprises a first air cavity, a second air cavity and an internal damping unit, and two sides of the damping unit are fixedly connected with the first air cavity and the second air cavity respectively. The utility model discloses an air bag cavity, can dismantle the connection through buckle an and buckle b between the air bag cavity, realized from installing the assembled equipment of maintaining, changing the full flow. The installation and maintenance cost is saved, the overall installation efficiency of the anti-collision device is improved, and the installation and maintenance period of the anti-collision device is further shortened.

Description

A buffer stop for bridge pier column

Technical Field

The utility model relates to a bridge technical field, concretely relates to an anti-collision device for bridge pier stud.

Background

The bridge is a structure for vehicles, pedestrians and the like to smoothly pass through and consists of an upper structure, a lower structure, a support and an accessory structure. The substructure mainly plays a role in supporting the overall structure of the bridge and transferring upper load, and generally consists of a bridge abutment, a bridge pier and a foundation. No matter the bridge is on land or on water, the bridge pier has high rigidity, and once a vehicle or other objects with high rigidity collide with the bridge, the bridge structure is easily damaged, and even the safety of the bridge and the surrounding environment is influenced. Therefore, the bridge protection device is produced at the same time.

However, the traditional bridge anti-collision device has the problems of complex installation process, long construction period, high maintenance and replacement cost, huge volume and the like. Particularly, the traditional bridge anti-collision device usually bears single impact, and the maintenance after collision damage usually means the whole replacement of the anti-collision device, thereby causing great resource waste and even environmental pollution.

The existing anti-collision devices are designed in many ways, for example, a chinese patent (CN 212426704U) discloses a bridge anti-collision airbag intercepting device, which includes a receiving assembly and an airbag anti-collision unit, wherein the receiving assembly is installed on the outer side wall of a bridge pier, a cavity is formed inside the receiving assembly, the airbag anti-collision unit includes a first airbag unit, the first airbag unit is installed in the cavity of the receiving assembly, the first airbag unit includes at least one first airbag layer, the first airbag layer includes a plurality of first airbags which are mutually communicated, and at least one first airbag is externally connected with an air source; the bridge anti-collision air bag intercepting device provided by the device comprises a first air bag unit which is not inflated, wherein the first air bag unit is arranged in a cavity for accommodating a component, so that a clearance space between piers can be always ensured by the bridge anti-collision air bag intercepting device which is not started, when the bridge anti-collision air bag intercepting device is started, the first air bag is inflated and then expands to rapidly form a multi-layer connected air bag anti-collision surface, so that impact force generated when a ship collides with the piers is absorbed and dissipated, the pier is protected, and serious damage caused by pier breakage is avoided. However, the anti-collision energy-absorbing structure is an integral structure, and assembly type disassembly and assembly cannot be realized, so that the anti-collision energy-absorbing structure is high in cost and difficult to replace and maintain.

For another example, chinese patent (CN 206902624U) discloses a bridge anti-collision reinforcing apparatus, which includes a reinforcing mechanism and an anti-collision mechanism, wherein the anti-collision mechanism is a hollow cylindrical structure, one side of the reinforcing mechanism is connected to a bridge pier, the other side of the reinforcing mechanism is connected to the inner surface of the anti-collision mechanism, the anti-collision mechanism includes a frame body and a plurality of rotating members, the rotating members are rotatably connected to the frame body, one side of the anti-collision mechanism, which is far away from the reinforcing mechanism, is constructed as an impact guide surface, and the impact guide surface is used for buffering and guiding impact. The collision guide surface is formed on one side, far away from the bridge pier, of the rotating part, so that when the vehicle collides with the anti-collision mechanism, the vehicle and the rotating part are in mutual rolling friction, the vehicle can move towards the direction deviating from the middle position of the bridge pier along the collision guide surface, the vehicle can be effectively prevented from directly colliding with the bridge pier, and the damage to the vehicle can be reduced in the rotating friction process of the vehicle and the rotating part. However, the reinforcing mechanism needs to be fixed on the bottom surface, the installation process is complex, and rapid assembly type assembly cannot be realized, so that the construction period is long.

To sum up, in the bridge buffer stop commonly used in the existing market, the functions of modularized dismounting and maintaining the buffer stop component can not be realized. Based on this, we developed an anti-collision device for bridge pier columns.

SUMMERY OF THE UTILITY MODEL

The utility model aims at realizing the modularization dismouting and the maintenance of buffer stop. The anti-collision device body comprises a plurality of air bag cavities, the air bag cavities are detachably connected through buckles a and buckles b, and the function of modularized disassembly and assembly is achieved through the buckles.

In order to realize the purpose, the utility model adopts the following technical scheme:

a collision avoidance device for a bridge pier, comprising: the anti-collision device comprises an anti-collision device body, wherein the anti-collision device body comprises an air bag cavity, a buckle a and a buckle b, one end of the air bag cavity is fixedly connected with the buckle a, and the other end of the air bag cavity is fixedly connected with the buckle b;

the air bag cavities are detachably connected through a buckle a and a buckle b;

the airbag cavity comprises a first air cavity, a second air cavity and an internal damping unit, and two sides of the damping unit are fixedly connected with the first air cavity and the second air cavity respectively. Preferably, the anti-collision device body further comprises an air valve and a vent pipe, and the two sides of the vent pipe are detachably connected with the air valve; the first air cavity and the second air cavity are communicated with air valves on two sides of the vent pipe.

Preferably, buckle b includes the spacing body of magnetism and electron terminal, the spacing body of magnetism be array distribution and with buckle b fixed connection, electron terminal can dismantle with buckle b and be connected.

Preferably, buckle a is last be provided with magnetism spacing body and electronic terminal assorted recess, supply the erection joint to use.

Preferably, the damping unit is a hollow structure, and the air valve and the vent pipe are nested inside the damping unit.

Preferably, the damping unit comprises a damper, a spring and a connecting ring, the connecting ring is symmetrically arranged at the left end and the right end of the damper, and the spring is detachably connected to the connecting ring.

Preferably, the first air cavity, the second air cavity and the damping unit jointly form a cavity structure, and one or more of a foaming agent or an elastic filler is filled in the cavity.

Preferably, the first air chamber and the second air chamber are reserved with inflation holes for inflation before installation.

Preferably, the outer side of the first air cavity is of a wave-shaped cavity surface structure, and the first air cavity is made of a high-damping TPE material; the buckle a and the buckle b are made of metal materials.

Preferably, the material of the spring is high-carbon steel.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model provides an anti-collision device for bridge pier stud has designed the gasbag cavity, can dismantle the connection through buckle an and buckle b between the gasbag cavity, realized from installing the assembled equipment of maintaining, changing the full flow. The installation and maintenance cost is saved, the overall installation efficiency of the anti-collision device is improved, and the installation and maintenance period is shortened.

2. The utility model provides an anti-collision device for bridge pier stud, wherein cavity structures is constituteed jointly to first air cavity, second air cavity and damping unit, and the three realizes passive absorptive capacity's function jointly. Specifically, the first air cavity and the second air cavity are in through connection with air valves on two sides of the vent pipe, so that the flow of air in the cavity can be realized, the inflation and deflation of the air bag cavity can be realized quickly, and the function of fully protecting the bridge during passive energy absorption is achieved.

3. The utility model provides a buffer stop for bridge pier stud, through set up on buckle b the spacing body of magnetism and buckle an set up with spacing body assorted recess of magnetism, realize the fixed connection to the gasbag cavity. The simple structure of buckle design can realize quick installation and change, reduces and uses and maintenance cost.

The foregoing description is only an overview of the technical solutions of the present application, so that the technical means of the present application can be more clearly understood and the present application can be implemented according to the content of the description, and in order to make the above and other objects, features and advantages of the present application more clearly understood, the following detailed description is made with reference to the preferred embodiments of the present application and the accompanying drawings.

The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, as illustrated in the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art are briefly introduced below, and the drawings herein are incorporated into and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.

It is obvious that the drawings in the following description are some embodiments of the present application, and that for a person skilled in the art, other drawings can be derived from these drawings without inventive effort. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Wherein:

FIG. 1 is a cross-sectional view of the uninflated airbag chamber of the present invention;

FIG. 2 is a schematic view of the airbag chamber according to the present invention showing details of the structure when it is not inflated;

fig. 3 is a front view of a partial structure of the first air cavity unit during inflation provided by the present invention;

fig. 4 is a rear view of a partial structure of the second air cavity unit during inflation provided by the present invention;

FIG. 5 is a sectional view of the airbag chamber according to the present invention;

fig. 6 is a schematic structural view of a connecting device of an anti-collision device for a bridge pier stud according to the present invention;

fig. 7 is a schematic view of the overall structure of an anti-collision device for a bridge pier stud provided by the present invention;

fig. 8 is the utility model provides a pair of an use assembly structure schematic diagram for buffer stop of bridge pier stud.

Reference numerals are as follows: 1. a collision avoidance device body; 2. a damping unit; 3. a buckle a; 4. a buckle b; 5. a limiting body; 6. an electronic terminal; 11. a first air cavity; 12. a second air cavity; 13. an air valve; 14. a breather pipe; 21. a damper; 22. a spring; 23. and (7) connecting rings.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on the drawings.

In the following description, specific details such as specific configurations and components are provided only to facilitate a thorough understanding of embodiments of the present application. Accordingly, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, descriptions of well-known functions and constructions are omitted in the embodiments for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "the present embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrase "one embodiment" or "the present embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Further, the present application may repeat reference numerals in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

The term "and/or" herein is merely an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, B exists alone, and A and B exist at the same time, and the term "/and" is used herein to describe another association object relationship, which means that two relationships may exist, for example, A/and B, may mean: the presence of a alone, and both cases a and B alone, and further, the character "/" herein generally means that the former and latter associated objects are in an "or" relationship.

The term "at least one" herein is merely an association relationship describing an associated object, and means that there may be three relationships, for example, at least one of a and B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.

It is further noted that, herein, relational terms such as first and second, and the like may be 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. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion.

Example 1

The embodiment mainly introduces the overall structure of the anti-collision device for the bridge pier and the working principle of the anti-collision device.

Please refer to fig. 7 and 8. An impact protection device for a bridge pier, comprising: the anti-collision device comprises an anti-collision device body 1, wherein the anti-collision device body 1 comprises an air bag cavity, a buckle a3 and a buckle b4, one end of the air bag cavity is fixedly connected with the buckle a3, the other end of the air bag cavity is fixedly connected with the buckle b4, and the air bag cavity is detachably connected with the buckle a3 and the buckle b 4.

In the practical application process, because the elastic material of the body 1 itself has certain elasticity and deformability, the shape of the body 1 is not limited to the circular shape in fig. 7 and 8, and can be set and installed in a polygonal shape such as a rectangle, a square and the like according to the actual pier shape of the bridge to be protected.

Please refer to fig. 1 and fig. 2. The air bag cavity comprises a first air cavity 11, a second air cavity 12 and an internal damping unit 2, wherein two sides of the damping unit 2 are fixedly connected with the first air cavity 11 and the second air cavity 12 respectively. When not inflated, the first air chamber 11 and the second air chamber 12 are both flat. Wherein, the first air cavity 11 and the second air cavity 12 are reserved with inflation holes for inflation before installation.

During inflation, the first air cavity 11 and the second air cavity 12 may be prefabricated in a factory for inflation treatment, or rapid gas replenishment may be performed at an installation and maintenance site. Specifically, in this embodiment, gas is input into the cavity through the preformed holes of the first air cavity 11 and the second air cavity 12, so that the cavity is expanded, and the final shape is that the damping unit 2 is wrapped in the middle of the first air cavity 11 and the second air cavity 12, and the three work together to play a passive energy absorption role, so as to meet the anti-collision requirement of the bridge pier column structure.

Further, the anti-collision device body 1 further comprises an air valve 13 and a vent pipe 14, the air valve 13 is detachably connected to two sides of the vent pipe 14, and the first air cavity 11 and the second air cavity 12 are in through connection with the air valves 13 on two sides of the vent pipe 14. In this embodiment, the gas valve 13 is opened in the second gas cavity 12 in a single-side direction, that is, in a direction toward the vent pipe 14, so that when the anti-collision device body 1 is squeezed or impacted by the outside, gas in the second gas cavity 12 can be rapidly supplemented to the first gas cavity 11 through the gas valve 13 in the single-side opening direction via the vent pipe 14, so as to achieve the extension of the maximum expansion area of the anti-collision device body 1, and achieve the optimal passive energy absorption effect.

Please refer to fig. 5. After the inflation, since the outer side of the first air cavity 11 is a wave-shaped cavity surface structure, in the present embodiment, the wave-shaped cavity surface structure relates to a concave-convex wave-shaped cavity surface structure with a certain height difference. From the design of the stress of the structural contact surface, the stress angle of an object when the object collides or collides with the bridge is further enlarged, and the external force is consumed and absorbed as much as possible through the concave-convex wave-shaped cavity surfaces, so that the effect of protecting the bridge pier stud is achieved.

The beneficial effect of this embodiment is, provides an buffer stop for bridge pier stud, in case the collision prevention device body is the core, its overall structure is simple, and the buffer stop body includes a plurality of air bag cavity, can dismantle the connection through buckle an and buckle b between the air bag cavity, realizes convenient installation and the connection of the assembled of structure. Further through the cooperation of cavity structures and damping unit, realized pneumatic anticollision on the one hand, on the other hand combines inside damping unit, utilizes its damping characteristic, realizes reducing structure vibration and absorbing energy's effect.

Example 2

Based on the above embodiment 1, the present embodiment mainly introduces a structure of an airbag cavity of an anti-collision device for a bridge pier and a working principle thereof.

Please refer to fig. 3.

The first air cavity 11, the second air cavity 12 and the damping unit 2 jointly form a cavity structure, and one or more foaming agents or elastic fillers are filled in the cavity. The material of first air cavity 11 chooses for use high damping TPE material, buckle a3 and buckle b 4's material all adopts metal material. In this embodiment, after a certain amount of air is supplied to the air bag cavity, the first air cavity 11 and the second air cavity 12 are extended to form a complete integral structure, so that the damping unit 2 is wrapped in the cavity, and the three together form a cavity structure.

Moreover, the empty part of the cavity can be filled with materials, so that the whole structure has a better energy absorption effect. Specifically, in this embodiment, please refer to fig. 5, because the anti-collision device body 1 includes a plurality of air bag cavities, the air bag cavities are detachably connected through the buckle a3 and the buckle b 4. This leads to voids between the connecting cavities, so that the filling with the foaming agent can take place in the free portions. On the other hand, the damping unit 2 is partially left empty, and the elastic filler can be filled therein.

Further, the damping unit 2 comprises a damper 21, a spring 22 and a connecting ring 23, wherein the connecting ring 23 is symmetrically arranged at the left end and the right end of the damper 21, and the spring 22 is detachably connected to the connecting ring 23. The material of spring 22 chooses high carbon steel material for use, all reserves the drag hook at the both ends of spring 22 moreover to be suitable for go-between 23, realize being connected with dismantling of go-between 23. The material of the connecting ring 23 is the same as that of the damper 21, and can be adjusted according to actual requirements. In the present embodiment, the damper 21 is a spring damper, but in practical applications, the type of the damper is not limited, and the spring damper can be preferably used in the prior art.

Further, the damping unit 2 is a hollow structure, and the air valve 13 and the vent pipe 14 are nested inside the damping unit. In the present embodiment, the air valve 13 and the vent pipe 14 are nested inside the damper 21. The air valve 13, the vent pipe 14 and the damper 21 are not fixedly connected, and the air valve 13 and the vent pipe 14 can move along the circumferential direction of the damper 21 on the basis of forming a whole, namely displacement is not limited, so that the air valve is more beneficial to rapid distribution and circulation of air in the cavity to achieve the optimal energy absorption effect.

The beneficial effect of this embodiment is that first air cavity, second air cavity and damping unit constitute cavity structures jointly, and the function of passive absorptive capacity is realized jointly to the three. Specifically, the first air cavity and the second air cavity are in through connection with air valves on two sides of the vent pipe, so that the flow of air in the cavity can be realized, the inflation and deflation of the air bag cavity can be realized quickly, and the function of fully protecting the bridge during passive energy absorption is achieved.

Example 3

Based on any one of embodiments 1-2, this embodiment mainly introduces a buckle connection structure for an anti-collision device of a bridge pier and its operating principle.

Please refer to fig. 6.

An impact protection device for a bridge pier, comprising: the anti-collision device comprises an anti-collision device body 1, wherein the anti-collision device body 1 comprises a plurality of air bag cavities, the air bag cavities are detachably connected through buckles a3 and b4, and the buckles a and b are fixedly connected to the two ends of a single air bag cavity. Buckle b3 includes the spacing body of magnetism and electron terminal, the spacing body of magnetism is array distribution and with buckle b4 fixed connection, electron terminal can dismantle with buckle b4 and be connected. The buckle a3 is provided with a groove matched with the magnetic limiting body and the electronic terminal for installation and connection.

Specifically, in this embodiment, one side of the single airbag cavity is fixedly connected with the buckle a3 by using a super glue, the other side of the single airbag cavity is connected with the buckle b4 in the same manner, and the operations are repeated, so that the multiple airbag cavities are detachably connected through the buckles a3 and b 4. The buckle a and the buckle b are fixedly connected with a single air bag cavity, and the specific fixed connection mode is not limited. In practical applications, the fixing connection may be performed by using a solid adhesive or a liquid adhesive, the welding fixation may be performed by installing gaskets on two sides of the single airbag cavity, and the fixing connection may also be performed by using a bolt type, and in short, the fixing connection manner is not limited to the form shown in this embodiment.

Further, buckle b4 includes a magnetic position-limiting body and an electronic terminal, wherein the magnetic position-limiting body is made of a magnetic material in the prior art, and in this embodiment, a magnetic material layer is coated on the buckle a3 in a groove matched with the magnetic position-limiting body. Of course, the magnetic material layer may not be coated in practical use. Because buckle b4 includes the magnetism spacing body, and buckle a3 and buckle b 4's material all adopts metal material, so also can realize magnetic adsorption. Specific metallic materials may be metallic iron, nickel, cobalt, etc.

The magnetic position-limiting bodies are distributed in an array and fixedly connected with the buckles b4, specifically, in fig. 6, the magnetic position-limiting bodies are in a rectangular structure, but are not limited to shape design in practical application, and can be in any one or combination of regular or irregular shapes and polygonal shapes. And the arrangement mode of array distribution is not necessarily adopted, and the adjustment can be preferentially carried out according to actual needs.

The electronic terminal is detachably connected with the buckle b 4. The prior art (off-line remote sending device) of the electronic terminal may be specifically connected to an electronic platform of a relevant department, such as: a road network alarm system and the like. Can realize through this electronic terminal that buffer stop connects broken string remote alarm, promptly when buffer stop in the actual work, in case the circumstances of buckle department disconnection or not connection appears, can the long-range signal of sending of off-line, electronic terminal's power supply mode adopts button cell's form, and standby energy consumption is low, can not appear insufficient power in general life cycle. Furthermore, buckle a3 is last be provided with magnetism spacing body and electronic terminal assorted recess, supply the erection joint to use. Of course, the grooves of the electronic terminal can be also preferentially adjusted according to the actual application requirements.

The beneficial effect of this embodiment is, through set up on buckle b magnetism spacing body and buckle a set up with magnetism spacing body assorted recess, realize the fixed connection to the gasbag cavity. The simple structure of buckle design can realize quick installation and change, reduces and uses and maintenance cost.

Example 4

Based on any one of the above embodiments 1 to 3, the present embodiment further provides a supplementary explanation on the structure of the anti-collision device for a bridge pier and the working principle thereof.

Please refer to fig. 4.

A collision avoidance device for a bridge pier, comprising: the anti-collision device comprises an anti-collision device body 1, wherein the anti-collision device body 1 comprises a plurality of air bag cavities, the air bag cavities are prefabricated by factory processing, and the processes of cavity inflation, damping unit 2 assembly and filler filling are included.

In the installation process, the air bag cavities are directly detachably connected through the buckles a3 and the buckles b4, and particularly in a magnetic attraction mode.

The air bag cavity comprises a first air cavity 11, a second air cavity 12 and a damping unit 2 inside, and two sides of the damping unit 2 are fixedly connected with the first air cavity 11 and the second air cavity 12 respectively.

The anti-collision device body 1 further comprises an air valve 13 and a vent pipe 14, and the air valve 13 is detachably connected to two sides of the vent pipe 14; the first air cavity 11 and the second air cavity 12 are communicated with air valves 13 at two sides of an air vent pipe 14. When external force impacts the bridge pier stud, the first air cavity 11 is contacted firstly, the first air cavity 11 is extruded to absorb a part of energy, the external force is conducted along the direction of the damping unit 2, the second air cavity 12 is extruded simultaneously, at the moment, the second air cavity 12 is extruded, gas is supplemented into the first air cavity 11 along the vent pipe 14 through the gas valve 13, and energy absorption is carried out again. During this period, the damping unit 2 simultaneously performs damping energy absorption. Through the process, passive energy absorption is completely realized, and the protection effect on the bridge pier stud is realized.

Furthermore, buckle b4 includes magnetism spacing body 5 and electronic terminal 6, magnetism spacing body 5 be array distribution and with buckle b4 fixed connection, electronic terminal 6 can dismantle with buckle b4 and be connected. When the air bag cavity is naturally disconnected in the using process, the electronic terminal 6 can immediately send a signal to a pipe network to remind personnel of overhauling.

Furthermore, the anti-collision device for the bridge pier stud has the advantages that the anti-collision device is simple in overall structure, light in material selection (many elastic materials) and convenient to install, so that the anti-collision device can be installed on a land bridge and can also be installed on structures (air cavities have certain buoyancy) such as a water bridge in practical application.

The beneficial effect of this embodiment is that, the buffer stop body includes a plurality of airbag cavity, can dismantle the connection through buckle a and buckle b between the airbag cavity, realize the function of modularization dismouting through the buckle.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundary of the appended claims, or the equivalents of such scope and boundary.

Claims

1. An impact protection device for a bridge pier, comprising: the anti-collision device comprises an anti-collision device body (1), and is characterized in that the anti-collision device body (1) comprises an air bag cavity, a buckle a (3) and a buckle b (4), wherein one end of the air bag cavity is fixedly connected with the buckle a (3), and the other end of the air bag cavity is fixedly connected with the buckle b (4);

the air bag cavities are detachably connected through a buckle a (3) and a buckle b (4);

the air bag cavity comprises a first air cavity (11), a second air cavity (12) and an internal damping unit (2), and two sides of the damping unit (2) are fixedly connected with the first air cavity (11) and the second air cavity (12) respectively.

2. The anti-collision device for the bridge pier column according to claim 1, wherein the anti-collision device body (1) further comprises an air valve (13) and a vent pipe (14), and the air valve (13) is detachably connected to two sides of the vent pipe (14); the first air cavity (11) and the second air cavity (12) are communicated with air valves (13) on two sides of the vent pipe (14).

3. The anti-collision device for the bridge pier stud according to claim 1, wherein the buckles (b) (4) comprise magnetic limiting bodies (5) and electronic terminals (6), the magnetic limiting bodies (5) are distributed in an array and fixedly connected with the buckles (b) (4), and the electronic terminals (6) are detachably connected with the buckles (b) (4).

4. The anti-collision device for the bridge pier stud according to claim 3, wherein a groove matched with the magnetic limiting body (5) and the electronic terminal (6) is formed in the buckle a (3) and used for installation and connection.

5. An anticollision device for a bridge pier according to claim 2, characterized in that the damping unit (2) is a hollow structure, and the air valve (13) and the air pipe (14) are nested inside the damping unit (2).

6. The crash-proof device for bridge piers according to claim 1 or 5, wherein the damping unit (2) comprises a damper (21), a spring (22) and a connection ring (23), the connection ring (23) is symmetrically arranged at the left and right ends of the damper (21), and the spring (22) is detachably connected to the connection ring (23).

7. The anti-collision device for the bridge pier stud according to claim 1 or 6, wherein the first air cavity (11), the second air cavity (12) and the damping unit (2) form a cavity structure, and one or more of foaming agent or elastic filler is filled in the cavity structure.

8. The anti-collision device for the bridge pier column according to claim 7, wherein the first air cavity (11) and the second air cavity (12) are reserved with inflation holes for inflation before installation.

9. The anti-collision device for the bridge pier stud according to claim 1, wherein the outer side of the first air cavity (11) is of a wave-shaped cavity surface structure, and the first air cavity (11) is made of a high-damping TPE material; the buckle a (3) and the buckle b (4) are both made of metal materials.

10. The anti-collision device for the bridge pier stud according to claim 6, wherein the spring (22) is made of high-carbon steel.