CN112048995B

CN112048995B - Road bridge pier safety device

Info

Publication number: CN112048995B
Application number: CN202011080419.4A
Authority: CN
Inventors: 张海伟; 李红云; 刘文超; 张卫青; 李萌萌; 王新昌; 杨帅; 李萌; 李林锋; 刘光明; 蔡雪娜
Original assignee: Individual
Current assignee: MCC Wukan Engineering Technology Co Ltd
Priority date: 2020-10-11
Filing date: 2020-10-11
Publication date: 2022-07-26
Anticipated expiration: 2040-10-11
Also published as: CN112048995A

Abstract

The invention discloses a road bridge pier safety protection device which comprises a base, wherein the base is positioned at the bottom end of a pier, the upper end of the base is fixedly connected with a lower fixing sleeve, the position of the top end of the pier, which corresponds to the lower fixing sleeve, is fixedly connected with an upper fixing sleeve, the lower end of the upper fixing sleeve is fixedly connected with a rod body, and one end, away from the upper fixing sleeve, of the rod body is provided with a primary vibration damping mechanism. The vibration on the pier is transmitted to the spring through the rod body by arranging the primary vibration absorption mechanism, the vibration absorption effect is realized through the telescopic motion of the spring, one part of the vibration of the rod body is transmitted to the shell through the contact with the shell, the shell further transmits the vibration to the elastic plate and the ball body through the mounting seat and the clamping sleeve, when the mechanical strain of the elastic plate is the same as the natural frequency of the clamping sleeve, the elastic plate further drives the ball body to generate resonance, and when the ball body vibrates, the vibration absorption capability of the pier can be realized, and the abrasion of the pier can be further reduced by matching with the primary vibration absorption mechanism.

Description

Road bridge pier safety device

Technical Field

The invention relates to the technical field of pier protection equipment, in particular to a road bridge pier safety protection device.

Background

The pier mainly comprises a top cap and a pier body. The bridge abutment mainly comprises a top cap and an abutment body. The top cap is used for dispersing and uniformly transmitting the large and concentrated force transmitted from the bridge span support to the pier body and the platform body. Therefore, the top hat is constructed by adopting a material with higher strength, generally reinforced concrete with the thickness not less than 40 cm and not less than 200 grades. In addition, the top cap also needs to have a larger plane size, so that a necessary working surface is provided for construction beam erection and maintenance. The pier body and the platform body are main structures for supporting the bridge span, not only bear all loads transmitted by the bridge span structure, but also directly bear various loads such as soil pressure, automobile impact force and the like, so that the pier body and the platform body have sufficient strength, rigidity and stability.

Among the prior art, for example, patent number CN107841940A discloses a pier safety device of urban road bridge, including pier, base, pre-buried post and preceding protection frame, the left and right sides of preceding protection frame is provided with left protection frame and right protection frame respectively, and the rear side between left protection frame and the right protection frame is provided with back protection frame, and the inboard of left protection frame and right protection frame all is provided with shock attenuation buffer two, and the inboard of preceding protection frame and back protection frame all is provided with shock attenuation buffer one. This device sets up the outside of pier on urban road, enclose the pier inside this device, vehicle and pedestrian to the road have fine guard action, when the serious accident appears, when the striking dynamics is great, inside shock attenuation buffer and two atress of shock attenuation buffer are to pier extrusion, and at the extruded in-process, expanding spring can be fine play the effect of shock attenuation buffering, all have the buffering guard action to pier and vehicle, can effectual protection pier's safety, avoid the pier serious damage to appear.

Still for example patent No. CN208328792U discloses a pier safety device of urban road bridge, including pier and the buffering body, the outside of pier is provided with the buffering body, and the buffering body is two, the buffering body includes base, inner plating, reservoir bed and outer plywood, and the below of the buffering body is provided with the base. According to the invention, external impact is weakened through the spring in the buffer body and the water in the water storage layer in a matching manner, so that the external impact is better buffered, when fire is caused by the external impact, the water in the water storage layer can be discharged through the water valve and the water pipe and is put out, and the rainwater on the bridge body is dredged through the second water pipe and is stored through the water storage layer, so that the corrosion of the bridge pier caused by the rainwater staying on the bridge pier is avoided, meanwhile, the stored rainwater can effectively cool the surrounding environment of the bridge pier when the external temperature is too high, the crack in the bridge pier caused by the water thermalization caused by the too high temperature of the bridge pier is avoided, and the service life of the bridge pier is further shortened.

The scheme realizes buffering through the springs and the like, reduces the impact of the vehicle on the bridge pier, avoids the serious damage of the bridge pier, has lower probability of the vehicle impacting the bridge pier, and generates vibration to continuously wear the bridge pier when the vehicle runs on the bridge pier or runs from the side surface, thereby continuously changing the vibration.

Disclosure of Invention

The invention aims to solve the problems and provides a road and bridge pier safety protection device.

In order to achieve the purpose, the invention adopts the following technical scheme:

a safety protection device for a road bridge pier comprises a base, wherein the base is positioned at the bottom end of a pier, a lower fixing sleeve is fixedly connected to the upper end of the base, an upper fixing sleeve is fixedly connected to the position, corresponding to the lower fixing sleeve, of the top end of the pier, a rod body is fixedly connected to the lower end of the upper fixing sleeve, a primary vibration absorption mechanism is arranged at one end, away from the upper fixing sleeve, of the rod body, the primary vibration absorption mechanism is provided with two input ends, the rod body is connected with one input end of the primary vibration absorption mechanism, and a secondary vibration absorption mechanism is arranged on the side wall of the primary vibration absorption mechanism;

the upper end of the lower fixed sleeve is provided with a telescopic adjusting mechanism, and one end of the telescopic adjusting mechanism, which is far away from the lower fixed sleeve, is connected with the other input end of the primary vibration absorption mechanism;

the middle part fixedly connected with at least one mounting panel of pier, the mounting panel adopts arc structure and laminates at the surface of pier, the one end that the pier was kept away from to the mounting panel is provided with buffer gear.

Optionally, the primary vibration absorbing mechanism is composed of a housing, a spring and a stopper;

the casing adopts hollow cylindrical structure, the spring is located the casing, the quantity of dog is two, the both ends of spring all with the dog welding, the through-hole has all been seted up at the both ends of casing, the body of rod passes through-hole and one of them dog fixed connection, flexible adjustment mechanism passes through-hole and another one dog fixed connection.

Optionally, the secondary vibration absorption mechanism is composed of a mounting seat, a clamping sleeve, an elastic plate and a ball body;

the mounting seat is fixedly connected to the outer surface of the shell, a gap at the joint of the mounting seat and the shell is filled with welding materials, the cutting sleeve is fixedly connected to the mounting seat, the cutting sleeve is fixedly connected with the elastic plate, the elastic plate is bent into an arc shape, the number of the spheres is two, and the two spheres are fixedly connected with the two ends of the elastic plate respectively.

Optionally, the telescopic adjusting mechanism is composed of a first screw, a second screw, a thread sleeve and a knob;

the first screw rod and the second screw rod are respectively in threaded connection with two ends of the threaded sleeve, the knob fixing sleeve is arranged on the threaded sleeve, the first screw rod is fixedly connected with the stop block, and the second screw rod is fixedly connected with the lower fixing sleeve.

Optionally, the buffer mechanism is composed of a fixed block, a central rod, a connecting sleeve, a side rod, a connecting block, a protective frame and a buffer piece;

fixed block and mounting panel fixed connection, fixed block and well core rod fixed connection, the adapter sleeve fixed mounting is established on well core rod, side lever and adapter sleeve fixed connection, well core rod and side lever have fixed jointly and have been connected with the protection frame, the quantity of bolster is a plurality of, and the equidistance sets up on the protection frame.

Optionally, the protection frame is bent into an arc-shaped structure, and a connecting block is arranged between the side rod and the protection frame.

Optionally, the buffer member is composed of a roller frame and a roller, the roller frame is fixedly connected with the protective frame, and the roller is rotatably connected to the roller frame.

The invention has the following advantages:

the vibration absorption device is provided with the primary vibration absorption mechanism, so that the vibration on the pier is transmitted to the spring through the rod body, the vibration absorption effect is realized through the telescopic motion of the spring, and the vibration abrasion of the pier is reduced.

According to the invention, the secondary vibration absorption mechanism is arranged, part of vibration of the rod body is transmitted to the shell through contact with the shell, the shell further transmits the vibration to the elastic plate and the ball body through the mounting seat and the clamping sleeve, when the mechanical strain of the elastic plate is the same as the inherent frequency of the clamping sleeve, the elastic plate further drives the ball body to resonate, and when the ball body vibrates, the vibration capacity of the bridge pier can be absorbed, and the wear of the bridge pier can be further reduced by matching with the primary vibration absorption mechanism.

By arranging the buffer mechanism, when an automobile impacts on the roller, the steering of the automobile head can be realized through the rotation of the roller, so that the automobile can shift at the moment of impact, and the automobile is prevented from directly impacting on a pier.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the telescoping adjustment mechanism of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the primary and secondary vibration canceling mechanisms of FIG. 1 according to the present invention.

FIG. 4 is a top view of the cushioning mechanism of FIG. 1 according to the present invention.

In the figure: 1 base, 2 piers, 3 lower fixed sleeves, 4 telescopic adjusting mechanisms, 41 first screw rods, 42 second screw rods, 43 thread sleeves, 44 knobs, 5 first-stage vibration absorption mechanisms, 51 shells, 52 springs, 53 stoppers, 6 second-stage vibration absorption mechanisms, 61 installation seats, 62 clamping sleeves, 63 elastic plates, 64 spheres, 7 rod bodies, 8 upper fixed sleeves, 9 installation plates, 10 buffer mechanisms, 101 fixed blocks, 102 central rods, 103 connecting sleeves, 104 side rods, 105 connecting blocks, 106 protection frames, 107 roller frames and 108 rollers.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Referring to fig. 1-4, a road bridge pier safety device, including base 1, base 1 is located the bottom of pier 2, fixed cover 3 under the upper end fixedly connected with of base 1, 2 tops of pier and the fixed cover 8 on the fixedly connected with of the position that fixed cover 3 corresponds down, the lower extreme fixedly connected with body of rod 7 of going up fixed cover 8, the one end that fixed cover 8 was kept away from to body of rod 7 is provided with one-level damping mechanism 5, one-level damping mechanism 5 has two inputs, body of rod 7 is connected with one input of one-level damping mechanism 5, be provided with second grade damping mechanism 6 on the lateral wall of one-level damping mechanism.

Specifically, the primary vibration damping mechanism 5 is constituted by a housing 51, a spring 52, and a stopper 53; casing 51 adopts hollow cylindrical structure, and spring 52 is located casing 51, and the quantity of dog 53 is two, and the both ends of spring 52 all welds with dog 53, and the through-hole has all been seted up at casing 51's both ends, and the body of rod 7 passes through-hole and one of them dog 53 fixed connection, and flexible adjustment mechanism 4 passes through-hole and another one dog 53 fixed connection. The primary vibration-damping mechanism 5 is used for transmitting vibration on the pier 2 to the spring 52 through the rod 7, and realizing vibration damping through the telescopic motion of the spring 52.

Specifically, the secondary vibration absorbing mechanism 6 is composed of a mounting seat 61, a clamping sleeve 62, an elastic plate 63 and a ball 64; mount pad 61 fixed connection is at the surface of casing 51, and the gap of the two junction passes through welding material to be filled, and cutting ferrule 62 fixed connection is on mount pad 61, cutting ferrule 62 and elastic plate 63 fixed connection, and the arc is buckled into to elastic plate 63, and the quantity of spheroid 64 is two, and two spheroids respectively with elastic plate 63's both ends fixed connection. The effect of second grade vibration canceling mechanism 6 lies in, and the vibration of the body of rod 7 is partly through the contact transmission to casing 51 department with casing 51, and casing 51 further transmits the vibration for elastic plate 63 and spheroid 64 through mount pad 61, cutting ferrule 62, and when the mechanical strain of elastic plate 63 was the same with the natural frequency of cutting ferrule 62, elastic plate 63 and then drive spheroid 64 and take place the resonance, and during the spheroid 64 vibration, can absorb the vibration ability of pier 2, reduces the wearing and tearing of pier 2.

The upper end of the lower fixing sleeve 3 is provided with a telescopic adjusting mechanism 4, and one end of the telescopic adjusting mechanism 4 far away from the lower fixing sleeve 3 is connected with the other input end of the primary vibration absorption mechanism 5.

Specifically, the telescopic adjustment mechanism 4 is composed of a first screw 41, a second screw 42, a threaded sleeve 43 and a knob 44; the first screw rod 41 and the second screw rod 42 are respectively in threaded connection with two ends of the threaded sleeve 43, the knob 44 is fixedly sleeved on the threaded sleeve 43, the first screw rod 41 is fixedly connected with the stop block 53, and the second screw rod 42 is fixedly connected with the lower fixing sleeve 3. The telescopic adjusting mechanism 4 is used for extending or shortening according to the heights of the tops of the base 1 and the bridge piers 2, so that the telescopic adjusting mechanism can adapt to bridge piers with different heights.

The middle part fixedly connected with at least one mounting panel 9 of pier 2, mounting panel 9 adopt arc structure and laminate at the surface of pier 2, and the one end that mounting panel 9 kept away from pier 2 is provided with buffer gear 10.

Specifically, the buffer mechanism 10 is composed of a fixed block 101, a center rod 102, a connecting sleeve 103, a side rod 104, a connecting block 105, a protection frame 106 and a buffer member; fixed block 101 and mounting panel 9 fixed connection, fixed block 101 and well core rod 102 fixed connection, the fixed cover of adapter sleeve 103 is established on well core rod 102, side rod 104 and adapter sleeve 103 fixed connection, well core rod 102 and side rod 104 have fixed being connected with protection frame 106 jointly, and the quantity of bolster is a plurality of, and the equidistance sets up on protection frame 106. The protection frame 106 is bent into an arc structure, and a connecting block 105 is arranged between the side rod 104 and the protection frame 106. The buffer member is composed of two parts, namely a roller frame 107 and a roller 108, wherein the roller frame 107 is fixedly connected with the protective frame 106, and the roller 108 is rotatably connected on the roller frame 107. The buffer mechanism 10 functions to enable the steering of the head of the automobile by the rotation of the roller 108 when the automobile impacts on the roller 108, so that the head of the automobile can be shifted at the moment of impact, thereby preventing the automobile from directly impacting on the pier 2.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention. In the present invention, unless otherwise specifically stated or limited, the terms "cover", "fitted", "attached", "fixed", "distributed", and the like are to be understood in a broad sense, and may be, for example, fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Claims

1. The road, bridge and pier safety protection device comprises a base (1), wherein the base (1) is located at the bottom end of a pier (2), and is characterized in that the upper end of the base (1) is fixedly connected with a lower fixing sleeve (3), the top end of the pier (2) is fixedly connected with an upper fixing sleeve (8) corresponding to the lower fixing sleeve (3), the lower end of the upper fixing sleeve (8) is fixedly connected with a rod body (7), one end, far away from the upper fixing sleeve (8), of the rod body (7) is provided with a primary vibration absorption mechanism (5), the primary vibration absorption mechanism (5) is provided with two input ends, the rod body (7) is connected with one input end of the primary vibration absorption mechanism (5), and the side wall of the primary vibration absorption mechanism is provided with a secondary vibration absorption mechanism (6);

the upper end of the lower fixing sleeve (3) is provided with a telescopic adjusting mechanism (4), and one end of the telescopic adjusting mechanism (4) far away from the lower fixing sleeve (3) is connected with the other input end of the primary vibration absorption mechanism (5);

the middle part of the pier (2) is fixedly connected with at least one mounting plate (9), the mounting plate (9) adopts an arc structure and is attached to the outer surface of the pier (2), and one end, away from the pier (2), of the mounting plate (9) is provided with a buffer mechanism (10);

the primary vibration absorption mechanism (5) consists of a shell (51), a spring (52) and a stop block (53);

the shell (51) is of a hollow cylindrical structure, the springs (52) are located in the shell (51), the number of the stop blocks (53) is two, two ends of each spring (52) are welded with the stop blocks (53), through holes are formed in two ends of the shell (51), the rod body (7) penetrates through the through holes to be fixedly connected with one of the stop blocks (53), and the telescopic adjusting mechanism (4) penetrates through the through holes to be fixedly connected with the other stop block (53);

the secondary vibration absorption mechanism (6) consists of a mounting seat (61), a clamping sleeve (62), an elastic plate (63) and a sphere (64);

the mounting seat (61) is fixedly connected to the outer surface of the shell (51), a gap at the joint of the mounting seat and the shell is filled with welding materials, the clamping sleeve (62) is fixedly connected to the mounting seat (61), the clamping sleeve (62) is fixedly connected with the elastic plate (63), the elastic plate (63) is bent into an arc shape, the number of the spheres (64) is two, and the two spheres are respectively and fixedly connected with two ends of the elastic plate (63);

the telescopic adjusting mechanism (4) is composed of a first screw rod (41), a second screw rod (42), a threaded sleeve (43) and a knob (44);

the first screw rod (41) and the second screw rod (42) are respectively in threaded connection with two ends of the threaded sleeve (43), the knob (44) is fixedly sleeved on the threaded sleeve (43), the first screw rod (41) is fixedly connected with the stop block (53), and the second screw rod (42) is fixedly connected with the lower fixed sleeve (3);

the buffer mechanism (10) is composed of a fixed block (101), a central rod (102), a connecting sleeve (103), a side rod (104), a connecting block (105), a protective frame (106) and a buffer piece;

the buffer device is characterized in that the fixed block (101) is fixedly connected with the mounting plate (9), the fixed block (101) is fixedly connected with the central rod (102), the connecting sleeve (103) is fixedly sleeved on the central rod (102), the side rods (104) are fixedly connected with the connecting sleeve (103), the central rod (102) and the side rods (104) are fixedly connected with a protection frame (106) together, and a plurality of buffer parts are arranged on the protection frame (106) at equal intervals;

the protection frame (106) is bent into an arc-shaped structure, and a connecting block (105) is arranged between the side rod (104) and the protection frame (106);

the buffer piece is composed of two parts, namely a roller frame (107) and a roller (108), wherein the roller frame (107) is fixedly connected with a protective frame (106), and the roller (108) is rotatably connected to the roller frame (107).