阅读说明：本技术 一种基于桥梁梁体减震的防落梁隔震装置 (Anti-falling beam shock isolation device based on bridge body shock absorption ) 是由 何世永 庞博 周渊涛 任昱豪 于 2020-06-24 设计创作，主要内容包括：本发明属于桥梁防护技术领域,尤其涉及一种基于桥梁梁体减震的防落梁隔震装置,支撑梁的顶部开设有安装槽,且安装槽内滑动连接有支撑板,支撑板的底部固定安装有缓冲组件,且支撑板的顶部固定安装有固定台,固定台的顶部延伸至支撑梁的上方并固定安装有支撑环,且固定台的顶部开设有与支撑环相连通的连接槽,支撑环的顶部固定安装有桥板,且桥板的底部固定安装有支撑柱,支撑柱的底端延伸至连接槽内,本发明通过将桥板安装在支撑环上,实现对桥板进行稳定限位,防止桥板发生偏移的问题,并且能够实现对桥板进行良好的减震,因此在日常使用过程中能够对桥板进行良好的保护,能够延长桥梁的使用寿命。(The invention belongs to the technical field of bridge protection, and particularly relates to a beam falling prevention and shock isolation device based on the shock absorption of a bridge body, wherein the top of a supporting beam is provided with a mounting groove, the mounting groove is internally and slidably connected with a supporting plate, the bottom of the supporting plate is fixedly provided with a buffer component, the top of the supporting plate is fixedly provided with a fixed platform, the top of the fixed platform extends to the upper part of the supporting beam and is fixedly provided with a supporting ring, the top of the fixed platform is provided with a connecting groove communicated with the supporting ring, the top of the supporting ring is fixedly provided with a bridge plate, the bottom of the bridge plate is fixedly provided with a supporting column, and the bottom end of the supporting column extends into the connecting groove. The service life of the bridge can be prolonged.)

1. The utility model provides a roof beam shock isolation device that falls is prevented based on bridge roof beam body shock attenuation, including a supporting beam (1), a serial communication port, supporting beam (1)'s top has been seted up mounting groove (2), and sliding connection has backup pad (3) in mounting groove (2), the bottom fixed mounting of backup pad (3) has the buffering subassembly, and the top fixed mounting of backup pad (3) has fixed station (7), the top of fixed station (7) extends to the top of a supporting beam (1) and fixed mounting has support ring (11), and the top of fixed station (7) is seted up spread groove (8) that are linked together with support ring (11), the top fixed mounting of support ring (11) has bridge plate (12), and the bottom fixed mounting of bridge plate (12) has support column (10), the bottom of support column (10) extends to in spread groove (8), symmetrical sliding connection has two erection columns (18) in support ring (11), and the bottom of two erection columns (18) all extends to in spread groove (8) and equal sliding connection has dead lever (23), and the equal fixed mounting of one end that two dead levers (23) are close to each other has splint (24), and two splint (24) all press from both sides the dress with support column (10) mutually, and two dead levers (23) are connected with the both sides inner wall transmission of spread groove (8) respectively.

2. The bridge beam body shock absorption-based beam falling prevention and shock isolation device as claimed in claim 1, wherein the top ends of the two mounting columns (18) are fixedly provided with fixing plates (13), the fixing plates (13) are respectively contacted with the bridge plate (12) and the support ring (11), the top of the support ring (11) is symmetrically and threadedly connected with two threaded covers (28), the bottom of the bridge plate (12) is symmetrically and fixedly provided with two clamping plates (14), one side of each threaded cover (28) is fixedly provided with two clamping rods (29), one side of each fixing plate (13) and one side of each clamping plate (14) are respectively provided with a clamping groove, and one end of each clamping rod (29) extends into each clamping groove and is clamped with the clamping groove.

3. The anti-falling beam vibration isolation device based on the bridge beam body vibration absorption is characterized in that two screw rods (15) are symmetrically and rotatably connected to the top of the support ring (11), and one ends of the two screw rods (15) respectively extend into the two threaded covers (28) and are respectively in threaded connection with the inner walls of the two threaded covers (28).

4. The anti-falling beam vibration isolation device based on the bridge beam body vibration absorption is characterized in that a return spring (19) is sleeved on the mounting column (18), and the top end and the bottom end of the return spring (19) are fixedly connected with the inner wall of one side of the support ring (11) and the mounting column (18) respectively.

5. The anti-falling beam vibration isolation device based on the bridge beam body vibration absorption is characterized in that a mounting ring (20) is fixedly mounted at the bottom end of the mounting column (18), fixing rods (23) penetrate through the mounting ring (20) and are in sliding connection with the inner wall of the mounting ring (20), inclined plane openings (22) are formed in the inner walls of the two sides of the connecting groove (8), one ends, far away from each other, of the two fixing rods (23) extend into the two inclined plane openings (22) respectively and are connected with rollers (21) in a rotating mode, and the two rollers (21) are in transmission connection with the two inclined plane openings (22) respectively.

6. The anti-falling beam vibration isolation device based on the bridge beam body vibration absorption is characterized in that the fixing rod (23) is sleeved with an extension spring (27) positioned in the mounting ring (20), and two ends of the extension spring (27) are respectively fixedly connected with the inner wall of the mounting ring (20) and the fixing rod (23).

7. The bridge girder shock absorption-based anti-falling beam shock isolation device as claimed in claim 1, wherein the bottom inner wall of the connecting groove (8) is fixedly provided with a clamping cover (9), the bottom end of the supporting column (10) extends into the clamping cover (9), the bottom end of the supporting column (10) and the bottom inner wall of the clamping cover (9) are both fixedly provided with cushion pads (16), and the two cushion pads (16) are in contact.

8. The bridge beam body shock absorption-based beam falling prevention and shock isolation device as claimed in claim 1, wherein the buffer assembly comprises a plurality of elastic steel plates (4) and connecting rings (5) slidably connected in the mounting groove (2), two connecting rings (5) are respectively located at two sides of a single elastic steel plate (4), fixed shafts are fixedly mounted at two sides of each elastic steel plate (4) and penetrate through the connecting rings (5), a sliding sleeve (17) located in the connecting ring (5) is sleeved on each fixed shaft in a rotating manner, and the sliding sleeve (17) is slidably connected with the inner walls of the connecting rings (5).

9. The bridge beam body shock absorption-based beam falling prevention and shock isolation device as claimed in claim 1, wherein four buffer covers (6) are symmetrically and fixedly mounted on the inner wall of the bottom of the mounting groove (2), the buffer covers (6) are internally and slidably connected with buffer rods (25), and the top ends of the two buffer rods (25) positioned on the same side extend into the mounting groove (2) and are fixedly connected with the bottom of the same connecting ring (5).

10. The anti-falling beam vibration isolation device based on the bridge beam body vibration absorption is characterized in that a buffer spring (26) is fixedly arranged on the inner wall of the buffer cover (6), and the top end of the buffer spring (26) is fixedly connected with the bottom end of the buffer rod (25).

Technical Field

The invention belongs to the technical field of bridge protection, and relates to a beam falling prevention and shock insulation device based on bridge body shock absorption.

Background

In recent years, with the rapid development of bridges and construction engineering in China, various novel structural forms and functional construction engineering are continuously developed, China provides a special mission for the bridge engineering, 5.12 Wenchuan earthquake causes huge loss, infrastructure near Wenchuan is seriously damaged, the bridge is seriously damaged, wherein the falling beam damage, collision between beam bodies and block damage are main forms for causing the bridge damage to block traffic, and the shock absorption and isolation and beam falling prevention device is required to be arranged.

At present, most of bridge anti-falling devices are arranged on a bearing platform, anti-collision stop blocks distributed in the transverse bridge direction are matched with longitudinal bridge upward anti-falling devices to achieve the purpose of preventing the beams from falling, but at present, after the anti-collision stop blocks are installed on a beam body, the buffering and damping performance of the anti-falling devices is not ideal enough, so that the anti-falling beam shock isolation device based on the shock absorption of the beam body of the bridge is provided for solving the problem.

Disclosure of Invention

In view of the above, the invention provides a beam falling prevention and shock insulation device based on bridge beam body shock absorption, which aims to solve the problem that after an anti-collision stop block is installed on a beam body, the shock absorption performance of the anti-collision stop block is not ideal enough.

In order to achieve the aim, the invention provides a beam falling prevention and shock isolation device based on the shock absorption of a bridge body, which comprises a supporting beam, wherein the top of the supporting beam is provided with a mounting groove, a supporting plate is connected in the mounting groove in a sliding manner, the bottom of the supporting plate is fixedly provided with a buffer component, the top of the supporting plate is fixedly provided with a fixed platform, the top of the fixed platform extends to the upper part of the supporting beam and is fixedly provided with a supporting ring, the top of the fixed platform is provided with a connecting groove communicated with the supporting ring, the top of the supporting ring is fixedly provided with a bridge plate, the bottom of the bridge plate is fixedly provided with a supporting column, the bottom end of the supporting column extends into the connecting groove, the supporting ring is internally and symmetrically and slidably connected with two mounting columns, the bottom ends of the two mounting columns extend into the connecting groove and are respectively, two dead levers are connected with the both sides inner wall transmission of spread groove respectively.

The beneficial effect of this basic scheme lies in: through installing the bridge plate on the support ring, can realize stablizing spacingly to the bridge plate this moment, prevent that the bridge plate from taking place the problem of skew to can realize carrying out good shock attenuation to the bridge plate, consequently can carry out good protection to the bridge plate in daily use, can prolong the life of bridge.

Further, the equal fixed mounting in top of two erection columns has the fixed plate, and the fixed plate contacts with bridge plate and support ring respectively, and the top symmetry threaded connection of support ring has two screw thread covers, and the bottom symmetry fixed mounting of bridge plate has two cardboards, and one side fixed mounting of screw thread cover has two kellies, and the draw-in groove has all been seted up to one side of fixed plate and one side of cardboard, and the one end of kellies extends to in the draw-in groove and clamps mutually with the draw-in groove. Has the advantages that: the clamping rod is clamped behind the clamping groove to realize fixed installation of the bridge plate.

Furthermore, the top of support ring symmetry is rotated and is connected with two screws, and the one end of two screws extends to respectively in two thread cages and respectively with the inner wall threaded connection of two thread cages. Has the advantages that: the principle of utilizing the screw thread drives two kellies and removes, can realize carrying out stable spacing to the bridge plate.

Further, the mounting post is sleeved with a return spring, and the top end and the bottom end of the return spring are fixedly connected with the inner wall of one side of the support ring and the mounting post respectively. Has the advantages that: the mounting column with the return spring can realize elastic support of the bridge plate.

Further, the bottom fixed mounting of erection column has the collar, and the dead lever run through the collar and with the inner wall sliding connection of collar, has all seted up the inclined plane mouth on the both sides inner wall of spread groove, and the one end that two dead levers were kept away from each other extends to in two inclined plane mouths respectively and all rotates and is connected with the gyro wheel, and two gyro wheels respectively with two inclined plane mouth transmission connections. Has the advantages that: the two fixing rods can be conveniently pushed to be close to each other.

Furthermore, the fixed rod is sleeved with an extension spring positioned in the mounting ring, and two ends of the extension spring are respectively and fixedly connected with the inner wall of the mounting ring and the fixed rod. Has the advantages that: can conveniently drive the two clamping plates to be away from each other.

Further, fixed mounting has the card cover on the bottom inner wall of spread groove, and in the bottom of support column extended to the card cover, and equal fixed mounting had the blotter on the bottom of support column and the bottom inner wall of card cover, two blotters contacted. Has the advantages that: the buffer pad can carry out preliminary shock attenuation to the bridge plate.

Further, the buffering subassembly includes a plurality of elastic steel plates and the go-between of sliding connection in the mounting groove, and two go-between are located single elastic steel plate's both sides respectively, and the equal fixed mounting in both sides of elastic steel plate has the fixed axle, and the fixed axle runs through the go-between, rotates on the fixed axle to overlap and is equipped with the sliding sleeve that is located the go-between, and the inner wall sliding connection of sliding sleeve and go-between. Has the advantages that: the elastic steel plate can realize secondary shock absorption of the bridge plate.

Further, symmetry fixed mounting has four buffering covers on the bottom inner wall of mounting groove, and sliding connection has the buffer beam in the buffering cover, lies in all extending to the mounting groove with the top of two buffer beams of one side and with the bottom fixed connection of same go-between. Has the advantages that: the connecting ring can be limited in sliding.

Furthermore, a buffer spring is fixedly mounted on the inner wall of the buffer cover, and the top end of the buffer spring is fixedly connected with the bottom end of the buffer rod. Has the advantages that: the connecting ring can be elastically supported to share the pressure on the elastic steel plate.

The invention has the beneficial effects that:

1. according to the anti-falling beam shock isolation device based on the shock absorption of the bridge body, the bridge plate is placed on the support ring, the bridge plate can press the mounting column downwards to drive the fixing rod to move downwards, at the moment, the roller is in contact with the inclined plane of the inclined plane opening, so that the fixing rod can move transversely while moving downwards, the two fixing rods can be close to each other until the support column is inserted into the clamping cover to be in contact with the two cushion pads, and the two clamping plates can clamp the support column;

can realize carrying out preliminary location to the bridgeplate this moment through pressing from both sides tight back to the support column, can realize simultaneously that fixed plate and cardboard all contact with the support ring, later rotatable screw rod drives the screw thread cover and carries out lateral shifting, and at this moment two kellies can carry out the chucking to fixed plate and cardboard respectively to this can realize carrying out the installation firm to the bridgeplate.

2. According to the anti-falling beam shock isolation device based on the shock absorption of the bridge body, after the bridge plate is placed on the support ring, the weight of the bridge plate is transmitted to the plurality of elastic steel plates through the fixing platform, so that the bending depth of the plurality of elastic steel plates can be increased, the elastic potential energy of the elastic steel plates is gradually increased until the elastic potential energy of the plurality of elastic steel plates is equal to the gravitational potential energy of the bridge plate, the bridge plate can be in a dynamic balance state, and the longitudinal shock absorption of the bridge plate can be realized.

3. According to the anti-falling beam shock isolation device based on the shock absorption of the bridge body, the bridge plate is arranged on the support ring, so that the bridge plate can be stably limited, the problem of offset of the bridge plate is solved, and the bridge plate can be well damped, so that the bridge plate can be well protected in the daily use process, and the service life of a bridge can be prolonged.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

FIG. 1 is a structural front view of a beam falling prevention and shock isolation device based on bridge beam body shock absorption;

FIG. 2 is a top view of a connecting structure of a connecting ring and an elastic steel plate in the anti-falling beam vibration isolating device based on bridge beam body vibration absorption;

FIG. 3 is a front view of an internal structure of a buffer cover in the anti-falling beam vibration isolation device based on the shock absorption of a bridge body;

FIG. 4 is a front view of a connecting structure of a mounting column and a fixed rod in the anti-falling beam vibration isolation device based on bridge body vibration absorption;

FIG. 5 is a top view of a connecting structure of a screw rod, a threaded cover and a clamping rod in the anti-falling beam vibration isolating device based on bridge beam body vibration absorption;

FIG. 6 is a partially enlarged view of part A in FIG. 1 of the beam falling prevention and shock isolation device based on bridge body shock absorption.

The drawings are numbered as follows: the device comprises a support beam 1, a mounting groove 2, a support plate 3, an elastic steel plate 4, a connecting ring 5, a buffer cover 6, a fixing table 7, a connecting groove 8, a clamping cover 9, a support column 10, a support ring 11, a bridge plate 12, a fixing plate 13, a clamping plate 14, a screw rod 15, a buffer cushion 16, a sliding sleeve 17, a mounting column 18, a return spring 19, a mounting ring 20, a roller 21, a bevel opening 22, a fixing rod 23, a clamping plate 24, a buffer rod 25, a buffer spring 26, an extension spring 27, a threaded cover 28 and a clamping rod 29.

Detailed Description

The following is further detailed by way of specific embodiments:

as shown in fig. 1-6, the anti-falling beam vibration isolation device based on the shock absorption of the bridge body comprises a supporting beam 1, a mounting groove 2 is formed at the top of the supporting beam 1, a supporting plate 3 is connected in the mounting groove 2 in a sliding manner, a buffering component is fixedly arranged at the bottom of the supporting plate 3, a fixed platform 7 is fixedly arranged at the top of the supporting plate 3, the top of the fixed platform 7 extends to the upper side of the supporting beam 1 and is fixedly provided with a supporting ring 11, a connecting groove 8 communicated with the supporting ring 11 is formed at the top of the fixed platform 7, a bridge plate 12 is fixedly arranged at the top of the supporting ring 11, a supporting column 10 is fixedly arranged at the bottom of the bridge plate 12, the bottom end of the supporting column 10 extends into the connecting groove 8, two mounting columns 18 are symmetrically and slidably connected in the supporting ring 11, the bottom ends of the two mounting columns 18 both extend into the connecting groove, and two clamping plates 24 are clamped with the supporting column 10, and two fixing rods 23 are respectively in transmission connection with the inner walls of the two sides of the connecting groove 8.

In this embodiment, the equal fixed mounting in top of two erection columns 18 has fixed plate 13, and fixed plate 13 contacts with decking 12 and support ring 11 respectively, the top symmetry threaded connection of support ring 11 has two screw thread covers 28, and the bottom symmetry fixed mounting of decking 12 has two cardboard 14, one side fixed mounting of screw thread cover 28 has two kellies 29, and the draw-in groove has all been seted up to one side of fixed plate 13 and one side of cardboard 14, the one end of kellies 29 extends to in the draw-in groove and clamps mutually with the draw-in groove, the kellies 29 card can realize the fixed mounting to decking 12 behind the draw-in groove.

In this embodiment, the top of the support ring 11 is symmetrically and rotatably connected with two screws 15, and one ends of the two screws 15 respectively extend into the two thread covers 28 and are respectively in threaded connection with the inner walls of the two thread covers 28. The two clamping rods 29 are driven to move by utilizing the principle of threads, so that the bridge plate 12 can be stably limited.

In this embodiment, the mounting post 18 is sleeved with a return spring 19, and the top end and the bottom end of the return spring 19 are respectively fixedly connected with the inner wall of one side of the support ring 11 and the mounting post 18. The mounting post 18 with the return spring 19 enables an elastic support of the bridge plate 12.

In this embodiment, the bottom fixed mounting of erection column 18 has collar 20, and dead lever 23 run through collar 20 and with collar 20's inner wall sliding connection, all set up inclined plane mouth 22 on the both sides inner wall of spread groove 8, the one end that two dead levers 23 kept away from each other extends to in two inclined plane mouths 22 respectively and all rotates and is connected with gyro wheel 21, and two gyro wheels 21 are connected with two inclined plane mouths 22 transmission respectively. It is convenient to push the two fixing bars 23 close to each other.

In this embodiment, the fixing rod 23 is sleeved with an extension spring 27 located in the mounting ring 20, and two ends of the extension spring 27 are respectively fixedly connected with the inner wall of the mounting ring 20 and the fixing rod 23. It is convenient to bring the two clamping plates 24 away from each other.

In this embodiment, fixed mounting has card cover 9 on the bottom inner wall of spread groove 8, and the bottom of support column 10 extends to in the card cover 9, and equal fixed mounting has blotter 16 on the bottom of support column 10 and the bottom inner wall of card cover 9, and two blotters 16 contact. The cushion 16 provides a primary shock absorption of the bridge deck 12.

In this embodiment, the buffering assembly includes a plurality of elastic steel plates 4 and a connecting ring 5 slidably connected in the mounting groove 2, and two connecting rings 5 are respectively located at two sides of a single elastic steel plate 4, the fixed shaft is fixedly mounted at two sides of the elastic steel plate 4, and runs through the connecting ring 5, the rotating sleeve on the fixed shaft is provided with a sliding sleeve 17 located in the connecting ring 5, and the sliding sleeve 17 is slidably connected with the inner wall of the connecting ring 5. The elastic steel plate 4 can realize secondary shock absorption of the bridge plate 12.

In this embodiment, symmetry fixed mounting has four buffering covers 6 on the bottom inner wall of mounting groove 2, and sliding connection has buffer beam 25 in buffering cover 6, lies in all extending to mounting groove 2 with the top of two buffer beam 25 of one side and with the bottom fixed connection of same go-between 5. The sliding limit of the connecting ring 5 can be realized.

In this embodiment, a buffer spring 26 is fixedly mounted on the inner wall of the buffer cover 6, and the top end of the buffer spring 26 is fixedly connected with the bottom end of the buffer rod 25. The connecting ring 5 can be elastically supported to share the pressure of the elastic steel plate 4.

This prevent roof beam vibration isolator's application method that falls based on bridge roof beam body shock attenuation, at first place the bridge plate 12 on the support ring 11, insert support column 10 in the spread groove 8, the earthquake comes temporarily, the erection column 18 is pushed down to the weight on the bridge plate 12, when erection column 18 moves downwards, can drive dead lever 23 and move downwards, because gyro wheel 21 contacts with the inclined plane of inclined plane mouth 22 this moment, so still can carry out lateral shifting when dead lever 23 moves downwards, can make two dead levers 23 be close to each other, until inserting support column 10 two blotters 16 in the card cover 9 and contact, can realize that two splint 24 press from both sides tightly support column 10.

The supporting columns 10 are clamped to realize preliminary positioning of the bridge plate 12, meanwhile, the fixed plate 13 and the clamping plate 14 are both contacted with the supporting ring 11, then the screw 15 can be rotated to drive the threaded cover 28 to move transversely, at the moment, the two clamping rods 29 can respectively clamp the fixed plate 13 and the clamping plate 14, so that stable installation of the bridge plate 12 can be realized, after the bridge plate 12 is placed on the supporting ring 11, the weight of the bridge plate 12 can be transmitted to the plurality of elastic steel plates 4 through the fixed platform 7, the bending depth of the plurality of elastic steel plates 4 can be deepened, the elastic potential energy of the elastic steel plates 4 is gradually increased, when the plurality of elastic steel plates 4 are bent, the connecting ring 5 can be driven to move downwards, at the moment, the rod 25 can move downwards, the elastic force can be applied to the buffer springs 26 until the sum of the elastic potential energy of the plurality of elastic steel plates 4 and the four buffer springs 26 is equal to the gravitational potential energy of the bridge plate 12, therefore, the bridge plate 12 is in a dynamic balance state, and longitudinal shock absorption can be performed on the bridge plate 12, so that the bridge plate 12 can be well protected in the daily use process, and the service life of the bridge can be prolonged.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the present invention.