CN116024913A - Bridge reinforced structure - Google Patents

Abstract

The application relates to a bridge reinforced structure relates to the technical field of bridge, and it includes: a bracket; the base is arranged at the lower side of the bracket; the support column is fixed on the lower side of the bracket, a sliding groove is formed in the base, and the lower end of the support column is inserted into the sliding groove and can slide in the sliding groove along the vertical direction; the buffer elastic piece is arranged at the bottom of the sliding groove, so that the support column keeps a tendency of sliding out of the sliding groove; the two diagonal braces are respectively arranged at two sides of the support column, the upper ends of the two diagonal braces are fixed with two ends of the bracket respectively, and the base is provided with diagonal slots for inserting the lower ends of the diagonal braces; the middle part of the transmission plate is hinged in the base, one end of the transmission plate is abutted with the lower end of the diagonal brace, the other end of the transmission plate is connected with the support column, and the diagonal brace enables one end of the transmission plate to be kept in fit with the hinge groove; when the support column moves downwards, the inclined strut is driven to slide upwards along the axial direction by the transmission plate. The application has the effect of improving the supporting bearing capacity of the reinforcing structure.

Description

Bridge reinforced structure

Technical Field

The application relates to the technical field of bridges, in particular to a bridge reinforcing structure.

Background

Bridges are generally structures erected on rivers, lakes and seas to enable vehicles, pedestrians and the like to pass smoothly, and are also extended to be buildings erected to span mountain ranges, poor geology or meet other traffic requirements to enable passing to be more convenient. The bridge is generally composed of an upper structure, a lower structure, a support and an accessory structure, wherein the upper structure is also called a bridge span structure and is a main structure for crossing obstacles; the lower structure comprises a bridge abutment, a bridge pier and a foundation; the support is a force transmission device arranged at the supporting position of the bridge span structure and the bridge pier or the bridge abutment; the auxiliary structure is bridge end butt strap, cone slope protection, bank protection, diversion engineering, etc.

When the bearing capacity of the bridge deck is reduced due to long construction time, the bridge needs to be reinforced to improve the bearing capacity of the bridge. In the related art, the support column is designed to support the bridge according to the height of the bridge, because the reinforcing structure belongs to a post-added support structure, the support column is difficult to form an integrated structure with the bridge, the support effect of the reinforcing structure is greatly reduced, and the improvement space is provided.

Disclosure of Invention

In order to improve the supporting bearing capacity of the reinforcing structure, the application provides a bridge reinforcing structure.

The application provides a bridge reinforced structure adopts following technical scheme:

a bridge reinforcing structure, comprising:

a bracket;

the base is arranged on the lower side of the bracket;

the support column is fixed on the lower side of the bracket, a sliding groove is formed in the base, and the lower end of the support column is inserted into the sliding groove and can slide in the sliding groove along the vertical direction;

the buffer elastic piece is arranged at the bottom of the sliding groove and enables the support column to keep a trend of sliding out of the sliding groove;

the number of the diagonal braces is two, the two diagonal braces are respectively arranged on two sides of the supporting column, the upper ends of the two diagonal braces are fixed with two ends of the bracket respectively, and the base is provided with diagonal slots for inserting the lower ends of the diagonal braces; and

the middle part of the transmission plate is hinged in the base, a hinge groove is formed in the base, the transmission plate is arranged in the hinge groove, one end of the transmission plate is abutted to the lower end of the diagonal brace, the other end of the transmission plate is connected with the support column, and the diagonal brace enables one end of the transmission plate to keep fit with the hinge groove;

when the support column moves downwards, the other end of the transmission plate is driven to swing downwards around the middle part of the transmission plate, and one end of the transmission plate drives the diagonal brace to slide upwards along the axial direction.

Through adopting above-mentioned technical scheme, the bracket is in close contact with bridge span structure under the effect of buffering elastic component and is become integrated into one piece structure, can provide holding power for bridge span structure all the time. When the bridge span structure applies downward force to the bracket and the support column, the bracket and the support column slide downwards slightly, and the downward force applied to the support column by the bridge span structure is converted into upward supporting force of the diagonal bracing column through the transmission plate, so that the bearing capacity of the bridge reinforcing structure is improved.

Optionally, a driving groove is formed in the side wall of the supporting column, and the other end of the transmission plate is inserted into the driving groove.

Through adopting above-mentioned technical scheme, when the support column microslip downwards, the lateral wall in drive groove and the other end butt of drive plate to order about the other end of drive plate to move downwards.

Optionally, the diagonal brace includes:

the lower end of the lower stay is inserted into the inclined slot;

the upper end of the upper supporting column is fixed with the bracket, and the upper supporting column and the lower supporting column are concentrically arranged; and

the adjusting sleeve is provided with a first internal thread and a second internal thread, the rotation directions of the first internal thread and the second internal thread are opposite, the first internal thread is in threaded connection with the upper supporting column, and the second internal thread is in threaded connection with the lower supporting column.

By adopting the technical scheme, the upper support column and the lower support column can be driven to be close to or far away from each other by rotating the adjusting sleeve, so that the length of the inclined support column is adjusted to provide support for the bracket.

Optionally, the diagonal brace further comprises an elastic piece, the elastic piece is arranged in the adjusting sleeve, and the upper brace and the lower brace are clamped at two ends of the elastic piece.

By adopting the technical scheme, the elastic piece shares the force applied to the adjusting sleeve by the upper supporting column and the lower supporting column of the part, so that the first internal thread and the second internal thread are not easy to deform and damage.

Optionally, the adjusting sleeve includes:

a sleeve;

the first internal thread pipe penetrates through one end of the sleeve, the first internal thread is arranged on the first internal thread pipe, the first internal thread pipe can axially slide in the sleeve, the first internal thread pipe rotates along with the sleeve, two first limiting rings are arranged in the sleeve, and the two first limiting rings are respectively arranged at two ends of the first internal thread pipe; and

the second internal thread pipe is arranged at the other end of the sleeve in a penetrating mode, the second internal thread is arranged on the second internal thread pipe, the second internal thread pipe can axially slide in the sleeve, the second internal thread pipe rotates along with the sleeve, two second limiting rings are arranged in the sleeve, and the two second limiting rings are respectively arranged at two ends of the second internal thread pipe.

Through adopting above-mentioned technical scheme, when the drive plate drove the diagonal brace and upwards slided along the axial, lower brace precursor made the elastic component compress, shared a part of force through the elastic component buffering, then first internal thread pipe and the second spacing ring butt of upside, first internal thread pipe and the first spacing ring butt of downside, transmit for the diagonal brace through second internal thread pipe and sleeve pipe, improved the bearing capacity of diagonal brace.

Optionally, a first synchronization groove is formed in the outer side wall of the first internal thread pipe, the first synchronization groove is arranged along the axial direction of the first internal thread pipe, a first synchronization block is arranged on the inner side wall of the sleeve, and the first synchronization block can slide along the axial direction of the sleeve in the first synchronization groove.

By adopting the technical scheme, the first synchronization block slides in the first synchronization groove along the axial direction of the sleeve so as to guide the first internal thread pipe to slide relative to the sleeve, and simultaneously, the first internal thread pipe synchronously rotates along with the sleeve.

Optionally, a second synchronization groove is formed in the outer side wall of the second internal thread pipe, the second synchronization groove is arranged along the axial direction of the second internal thread pipe, a second synchronization block is arranged on the inner side wall of the sleeve, and the second synchronization block can slide along the axial direction of the sleeve in the second synchronization groove.

By adopting the technical scheme, the second synchronizing block slides in the second synchronizing groove along the axial direction of the sleeve so as to guide the second internally threaded pipe to slide relative to the sleeve, and simultaneously, the second internally threaded pipe synchronously rotates along with the sleeve.

Optionally, the device further comprises a connecting rod for connecting the two diagonal braces, wherein the connecting rod is horizontally arranged.

By adopting the technical scheme, the horizontal force applied to the bracket by the upper stay is counteracted, so that the bracket is not easy to be pulled in the horizontal direction by the upper stay, and the service life of the bracket is prolonged.

Optionally, the connecting rod includes:

the number of the pull rods is two, the pull rods are fixed in one-to-one correspondence with the two diagonal braces, and the pull rods are horizontally arranged;

the number of the holding blocks is two, the two holding blocks are respectively fixed with the two pull rods in a one-to-one correspondence manner, the holding blocks are provided with a notch, the two notches enclose a penetrating hole for the supporting column to penetrate, and the two holding blocks are arranged on the lower side of the bracket so as to support the bracket;

the number of the guide posts is two, the two guide posts are respectively arranged at two sides of the support post, and the guide posts sequentially penetrate through the two holding blocks;

the two reset elastic pieces correspond to one guide post, and are respectively sleeved at two ends of the guide post; and

and the limiting parts are arranged at two end parts of the guide post, so that the reset elastic parts keep pressing the holding blocks.

Through adopting above-mentioned technical scheme, when the bracket slides downwards a little, order about two arming blocks and keep away from each other, reset elastic component compression energy storage to provide the support for the bracket.

Optionally, the device further comprises an adjusting component for adjusting the tightness of the buffering elastic piece, and the adjusting component comprises:

the adjusting plate is arranged at the bottom of the sliding groove and is abutted against the lower side of the buffering elastic piece, and the adjusting plate can be lifted in the sliding groove;

the two adjusting columns are respectively fixed at two ends of the adjusting plate, extend upwards out of the base, and are connected with the base in a sliding manner along the circumferential direction; and

and the adjusting nut is in threaded connection with the adjusting column and is pressed on the upper side of the base.

Through adopting above-mentioned technical scheme, rotate adjusting nut, can drive adjusting column through adjusting nut and adjusting column's threaded connection and go up and down, and then drive the regulating plate and go up and down to adjust the elasticity of buffering elastic component, provide the support for the support column.

In summary, the present application includes at least one of the following beneficial technical effects:

when the bridge span structure applies downward force to the bracket and the support column, the bracket and the support column slide downwards slightly, and the downward force applied to the support column by the bridge span structure is converted into upward supporting force of the diagonal bracing column through the transmission plate, so that the bearing capacity of the bridge reinforcing structure is improved.

Drawings

Fig. 1 is a top view of a bridge reinforcing structure according to embodiment 1 of the present application.

Fig. 2 is a cross-sectional view taken along A-A in fig. 1.

Fig. 3 is a schematic structural view of the connecting rod of embodiment 1 of the present application.

Fig. 4 is a schematic structural diagram of the adjusting assembly, the support column and the buffer elastic member according to embodiment 1 of the present application.

Fig. 5 is a schematic structural view of a diagonal strut according to embodiment 2 of the present application.

Fig. 6 is a sectional view taken along the direction B-B in fig. 5.

Reference numerals illustrate: 10. a bracket; 20. a base; 21. a sliding groove; 22. an oblique slot; 23. a hinge groove; 30. a support column; 31. a driving groove; 40. a buffer elastic member; 50. a diagonal brace; 51. a lower strut; 52. an upper strut; 53. an adjusting sleeve; 531. a first internal thread; 532. a second internal thread; 54. an elastic member; 533. a sleeve; 534. a first internally threaded tube; 5331. a first stop collar; 535. a second internally threaded tube; 5332. a second limiting ring; 5341. a first synchronization groove; 5333. a first synchronization block; 5351. a second synchronization groove; 5334. a second synchronization block; 60. a drive plate; 70. a connecting rod; 71. a pull rod; 72. holding blocks; 721. a notch; 73. penetrating holes; 74. a guide post; 75. a return elastic member; 76. a limiting piece; 80. an adjustment assembly; 81. an adjusting plate; 82. an adjusting column; 83. and adjusting the nut.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-6.

The embodiment of the application discloses a bridge reinforcing structure.

Example 1

Referring to fig. 1 and 2, the bridge reinforcement structure includes a bracket 10, a base 20, a support column 30, a buffer elastic member 40, a diagonal strut 50, and a driving plate 60.

The bracket 10 is supported on the underside of the bridge span structure, the support columns 30 are fixed to the underside of the bracket 10, and the support columns 30 extend vertically downward. The base 20 is fixed on the ground and is positioned under the support column 30, a sliding groove 21 is formed in the base 20, the lower end of the support column 30 is inserted into the sliding groove 21, and the support column 30 can slide in the sliding groove 21 along the vertical direction.

The buffer elastic member 40 is a compression spring, the buffer elastic member 40 is disposed at the bottom of the sliding groove 21, and the upper end of the buffer elastic member 40 abuts against the lower end of the support column 30, so as to buffer the downward pressure applied to the buffer elastic member 40 by the bridge structure.

The number of the diagonal braces 50 is two, the two diagonal braces 50 are respectively arranged on two sides of the support column 30, the diagonal slots 22 are formed in the base 20, the lower ends of the diagonal braces 50 are inserted into the diagonal slots 22, and the upper ends of the two diagonal braces 50 are respectively fixedly connected with two ends of the bracket 10. In one embodiment, the diagonal strut 50 is integrally cylindrical.

In another embodiment, the diagonal brace 50 includes a lower brace 51, an upper brace 52, and an adjustment sleeve 53. The lower end of the lower stay 51 is inserted into the inclined slot 22, and the lower end of the lower stay 51 extends obliquely upward. The upper end of the upper stay 52 is fixedly connected to one end of the bracket 10, the lower end of the upper stay 52 extends obliquely downward, and the upper stay 52 and the lower stay 51 are concentrically arranged. The adjusting sleeve 53 has a first internal thread 531 and a second internal thread 532, the rotation direction of the first internal thread 531 is opposite to the rotation direction of the second internal thread 532, the first internal thread 531 is in threaded connection with the lower end of the upper strut 52, and the second internal thread 532 is in threaded connection with the upper end of the lower strut 51. The upper strut 52 and the lower strut 51 are driven toward or away from each other by rotating the adjusting sleeve 53 to adjust the length of the diagonal strut 50 to support the bracket 10.

The diagonal brace 50 further comprises an elastic member 54, the elastic member 54 is a compression spring, the elastic member 54 is arranged in the adjusting sleeve 53, the elastic member 54 is located between the upper brace 52 and the lower brace 51, and the upper brace 52 and the lower brace 51 are clamped at two ends of the elastic member 54. The elastic member 54 shares a part of the force applied to the adjustment sleeve 53 by the upper and lower struts 52 and 51 so that the first and second female threads 531 and 532 are not easily deformed and damaged.

The base 20 is provided with a hinge groove 23, the transmission plate 60 is arranged in the hinge groove 23, one end of the transmission plate 60 is abutted with the lower end of the lower supporting column 51, and the other end of the transmission plate 60 can swing downwards around the middle part of the transmission plate 60 so as to drive the lower supporting column 51 to slide upwards along the axial direction. The side wall of the support column 30 is provided with a driving groove 31, and the other end of the transmission plate 60 is inserted into the driving groove 31. Initially, the drive plate 60 is maintained in a horizontal configuration with one end of the drive plate 60 being allowed to swing upwardly about the middle of the drive plate 60. When the support column 30 slides slightly downward, the side wall of the driving slot 31 drives the other end of the driving plate 60 to swing downward around the middle of the driving plate 60. By translating the downward force of the support column 30 into the upward force of the diagonal brace 50 to support the bracket 10, the bearing load of the support column 30 is reduced while maintaining the bracket 10 in close contact with the bridge span structure as a unitary structure.

Referring to fig. 2 and 3, the bridge reinforcement structure further includes a connection rod 70, the connection rod 70 being horizontally disposed, and both ends of the connection rod 70 being fixedly connected with the upper stay 52, respectively, to offset a horizontal force applied to the bracket 10 by the upper stay 52.

In one embodiment, the connecting rod 70 is in a unitary cylindrical arrangement.

In another embodiment, the connecting rod 70 includes a pull rod 71, a yoke 72, a guide post 74, a return spring 75, and a stop 76. The number of the tie rods 71 is two, the two tie rods 71 are fixed in one-to-one correspondence with the two upper struts 52, and the two tie rods 71 extend from the corresponding upper struts 52 in the horizontal direction toward the support columns 30. The number of the holding blocks 72 is two, the two holding blocks 72 are respectively fixed with one ends of the two pull rods 71 facing the support column 30, a gap 721 is formed in the holding blocks 72, the two gaps 721 enclose a penetrating hole 73 for the support column 30 to penetrate, and the two holding blocks 72 are abutted against the lower side of the bracket 10 to provide support for the bracket 10. Connecting plates are fixed on two sides of the holding block 72, and the connecting plates are located on one side, away from the pull rod 71, of the holding block 72. The number of the guide posts 74 is two, the two guide posts 74 are respectively positioned at two sides of the support post 30, the guide posts 74 sequentially penetrate through the connecting plates at the same side of the two holding blocks 72, and the guide posts 74 are connected with the connecting plates in a sliding manner along the axial direction. The restoring elastic members 75 are compression springs, the two restoring elastic members 75 correspond to one guide post 74, and the two restoring elastic members 75 are respectively sleeved at two ends of the guide post 74. The limiting members 76 are nuts, the two limiting members 76 are respectively connected to two end portions of the guide post 74 in a threaded mode, and the limiting members 76 and the connecting plates are clamped at two ends of the reset elastic member 75.

When the bracket 10 moves downwards slightly, the two holding blocks 72 are driven to be away from each other, and the reset elastic piece 75 compresses and stores energy to provide a certain support for the bracket 10. After the bracket 10 is reset, the reset elastic member 75 drives the two holding blocks 72 to approach each other for reset.

Referring to fig. 2 and 4, the bridge reinforcement structure further includes an adjusting assembly 80, wherein the adjusting assembly 80 is used for adjusting the tightness of the buffer elastic member 40 to provide support for the support column 30. Specifically, the adjustment assembly 80 includes an adjustment plate 81, an adjustment post 82, and an adjustment nut 83. The adjusting plate 81 is disposed at the bottom of the sliding groove 21, the adjusting plate 81 can slide in the sliding groove 21 along the vertical direction, and the adjusting plate 81 abuts against the lower end of the buffering elastic member 40. The number of the adjusting columns 82 is two, the two adjusting columns 82 are respectively fixed at two ends of the adjusting plate 81, the adjusting columns 82 extend upwards from the adjusting plate 81 to the base 20 along the vertical direction, and the adjusting columns 82 can slide along the axial direction relative to the base 20. The adjusting nut 83 is screwed on the upper end of the adjusting post 82, the adjusting nut 83 abuts against the upper side of the base 20, and the adjusting plate 81 can be driven to lift by rotating the adjusting nut 83, so as to adjust the tightness of the buffering elastic member 40.

The implementation principle of the embodiment 1 is as follows: when the bridge span structure applies downward force to the bracket 10 and the support column 30, the bracket 10 and the support column 30 slide downwards slightly, and the downward force applied to the support column 30 by the bridge span structure is converted into upward supporting force of the diagonal bracing column 50 through the transmission plate 60, so that the bearing capacity of the bridge reinforcing structure is improved. The bracket 10 is tightly contacted with the bridge span structure into an integral structure under the action of the buffer elastic piece 40, and can always provide supporting force for the bridge span structure.

Example 2

Referring to fig. 5 and 6, this embodiment is different from embodiment 1 in that the adjusting sleeve 53 includes a sleeve 533, a first internally threaded pipe 534, and a second internally threaded pipe 535. The first internal thread pipe 534 is arranged at the upper end of the sleeve 533 in a penetrating way, the first internal thread 531 is arranged on the inner side wall of the first internal thread pipe 534, and the first internal thread pipe 534 is connected with the sleeve 533 in a sliding way along the axial direction. The inner side wall of the sleeve 533 is integrally provided with a first limiting ring 5331, the two first limiting rings 5331 are respectively positioned at two ends of the first inner threaded pipe 534, the distance between the two first limiting rings 5331 is larger than the length of the first inner threaded pipe 534, and the first limiting rings 5331 limit the first threaded pipe. The first synchronization groove 5341 is formed in the outer wall of the first internally threaded tube 534, and the first synchronization groove 5341 is formed in the axial direction of the first internally threaded tube 534. A first synchronizing block 5333 is fixed to the inner side wall of the sleeve 533, and the first synchronizing block 5333 slides in the first synchronizing groove 5341 along the axial direction of the sleeve 533 to guide the first internally threaded tube 534 to slide relative to the sleeve 533 along the axial direction, and simultaneously enables the first internally threaded tube 534 to rotate synchronously with the sleeve 533.

The second internal thread pipe 535 penetrates through the lower end of the sleeve 533, the second internal thread 532 is arranged on the inner side wall of the second internal thread pipe 535, and the second internal thread pipe 535 is connected with the sleeve 533 in a sliding way along the axial direction. The inner side wall of the sleeve 533 is integrally provided with a second limiting ring 5332, the two second limiting rings 5332 are respectively positioned at two ends of the second inner threaded pipe 535, the distance between the two second limiting rings 5332 is larger than the length of the second inner threaded pipe 535, and the second limiting rings 5332 limit the second threaded pipe. The outer sidewall of the second female screw pipe 535 is provided with a second synchronization groove 5351, and the second synchronization groove 5351 is provided along the axial direction of the second female screw pipe 535. A second synchronizing block 5334 is fixed on the inner sidewall of the sleeve 533, and the second synchronizing block 5334 slides in the second synchronizing groove 5351 along the axial direction of the sleeve 533 to guide the second internally threaded tube 535 to slide along the axial direction relative to the sleeve 533, and simultaneously enables the second internally threaded tube 535 to synchronously rotate with the sleeve 533.

The implementation principle of the embodiment 2 is as follows: the rotating sleeve 533 drives the first internally threaded tube 534 and the second internally threaded tube 535 to rotate synchronously, so that the upper strut 52 and the lower strut 51 can be driven to approach or separate from each other through the threaded connection of the first internally threaded tube 534 and the upper strut 52 and the threaded connection of the second internally threaded tube 535 and the lower strut 51, so as to adjust the length of the diagonal strut 50. When the driving plate 60 drives the diagonal brace 50 to slide upwards in the axial direction, the lower brace 51 drives the elastic member 54 to compress, and part of the force is buffered and shared by the elastic member 54, then the first internally threaded tube 534 abuts against the second limiting ring 5332 on the upper side, the first internally threaded tube 534 abuts against the first limiting ring 5331 on the lower side, and is transferred to the upper brace 52 through the second internally threaded tube 535 and the sleeve 533, so that the bearing capacity of the diagonal brace 50 is improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. A bridge girder reinforcing structure, comprising:

a bracket (10);

a base (20) provided on the lower side of the bracket (10);

the support column (30) is fixed on the lower side of the bracket (10), a sliding groove (21) is formed in the base (20), and the lower end of the support column (30) is inserted into the sliding groove (21) and can slide in the sliding groove (21) along the vertical direction;

a buffer elastic member (40) provided at the bottom of the sliding groove (21), the buffer elastic member (40) keeping the support column (30) in a tendency to slide out of the sliding groove (21);

the number of the inclined supporting columns (50) is two, the two inclined supporting columns (50) are respectively arranged at two sides of the supporting column (30), the upper ends of the two inclined supporting columns (50) are fixed with two ends of the bracket (10), and the base (20) is provided with inclined slots (22) for inserting the lower ends of the inclined supporting columns (50); and

the middle part of the transmission plate (60) is hinged in the base (20), a hinge groove (23) is formed in the base (20), the transmission plate (60) is arranged in the hinge groove (23), one end of the transmission plate (60) is abutted to the lower end of the diagonal brace (50), the other end of the transmission plate (60) is connected with the support column (30), and the diagonal brace (50) enables one end of the transmission plate (60) to be attached to the hinge groove (23);

when the support column (30) moves downwards, the other end of the transmission plate (60) is driven to swing downwards around the middle part of the transmission plate (60), and one end of the transmission plate (60) drives the diagonal brace (50) to slide upwards along the axial direction.

2. The bridge reinforcing structure of claim 1, wherein: the side wall of the support column (30) is provided with a driving groove (31), and the other end of the transmission plate (60) is inserted into the driving groove (31).

3. Bridge reinforcement structure according to claim 1, characterized in that the diagonal strut (50) comprises:

a lower stay (51) with a lower end inserted into the inclined slot (22);

an upper stay (52) with an upper end fixed to the bracket (10), the upper stay (52) and the lower stay (51) being concentrically arranged; and

the adjusting sleeve (53) is provided with a first internal thread (531) and a second internal thread (532), the first internal thread (531) and the second internal thread (532) are oppositely arranged, the first internal thread (531) is in threaded connection with the upper stay (52), and the second internal thread (532) is in threaded connection with the lower stay (51).

4. A bridge reinforcing structure according to claim 3, wherein: the diagonal brace (50) further comprises an elastic piece (54), the elastic piece (54) is arranged in the adjusting sleeve (53), and the upper brace (52) and the lower brace (51) are clamped at two ends of the elastic piece (54).

5. Bridge reinforcing structure according to claim 4, wherein the adjusting sleeve (53) comprises:

a sleeve (533);

the first internal thread pipe (534) is arranged at one end of the sleeve (533) in a penetrating mode, the first internal thread (531) is arranged on the first internal thread pipe (534), the first internal thread pipe (534) can axially slide in the sleeve (533), the first internal thread pipe (534) rotates along with the sleeve (533), two first limiting rings (5331) are arranged in the sleeve (533), and the two first limiting rings (5331) are respectively arranged at two ends of the first internal thread pipe (534); and

the second internal thread pipe (535) is arranged at the other end of the sleeve (533) in a penetrating mode, the second internal thread (532) is arranged on the second internal thread pipe (535), the second internal thread pipe (535) can axially slide in the sleeve (533), the second internal thread pipe (535) rotates along with the sleeve (533), two second limiting rings (5332) are arranged in the sleeve (533), and the two second limiting rings (5332) are respectively arranged at two ends of the second internal thread pipe (535).

6. The bridge reinforcement structure of claim 5, wherein: be equipped with first synchronization groove (5341) on the lateral wall of first internal thread pipe (534), first synchronization groove (5341) are followed the axial setting of first internal thread pipe (534), be equipped with first synchronization piece (5333) on the inside wall of sleeve pipe (533), first synchronization piece (5333) can follow in first synchronization groove (5341) the axial slip of sleeve pipe (533).

7. The bridge reinforcement structure of claim 5, wherein: the outer side wall of the second internal thread pipe (535) is provided with a second synchronization groove (5351), the second synchronization groove (5351) is arranged along the axial direction of the second internal thread pipe (535), the inner side wall of the sleeve (533) is provided with a second synchronization block (5334), and the second synchronization block (5334) can slide along the axial direction of the sleeve (533) in the second synchronization groove (5351).

8. The bridge reinforcing structure of claim 1, wherein: the connecting rod (70) is connected with the two diagonal braces (50), and the connecting rod (70) is horizontally arranged.

9. Bridge reinforcing structure according to claim 8, wherein the connecting rod (70) comprises:

the number of the pull rods (71) is two, the pull rods are fixed in one-to-one correspondence with the two diagonal braces (50), and the pull rods (71) are horizontally arranged;

the number of the holding blocks (72) is two, the two holding blocks (72) are respectively and correspondingly fixed with the two pull rods (71) one by one, the holding blocks (72) are provided with a notch (721), the two notches (721) are enclosed to form a penetrating hole (73) for the supporting column (30) to penetrate, and the two holding blocks (72) are arranged on the lower side of the bracket (10) so as to support the bracket (10);

the number of the guide posts (74) is two, the two guide posts (74) are respectively arranged at two sides of the support post (30), and the guide posts (74) sequentially penetrate through the two holding blocks (72);

the two reset elastic pieces (75) correspond to one guide post (74), and the two reset elastic pieces (75) are respectively sleeved at two ends of the guide post (74); and

and limiting pieces (76) are arranged at two ends of the guide post (74) so that the reset elastic piece (75) keeps pressing the holding block (72).

10. The bridge reinforcement structure of claim 1, further comprising an adjustment assembly (80) for adjusting the tightness of the cushioning spring member (40), the adjustment assembly (80) comprising:

an adjusting plate (81) arranged at the bottom of the sliding groove (21), wherein the adjusting plate (81) is abutted against the lower side of the buffer elastic piece (40), and the adjusting plate (81) can lift in the sliding groove (21);

the two adjusting columns (82) are respectively fixed at two ends of the adjusting plate (81), the two adjusting columns (82) extend upwards out of the base (20), and the adjusting columns (82) are connected with the base (20) in a sliding manner along the circumferential direction; and

and the adjusting nut (83) is connected to the adjusting column (82) in a threaded manner and is pressed on the upper side of the base (20).

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