CN111877136A - Anti-seismic and anti-falling beam structure - Google Patents
Anti-seismic and anti-falling beam structure Download PDFInfo
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- CN111877136A CN111877136A CN202010683478.4A CN202010683478A CN111877136A CN 111877136 A CN111877136 A CN 111877136A CN 202010683478 A CN202010683478 A CN 202010683478A CN 111877136 A CN111877136 A CN 111877136A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
Abstract
The invention belongs to the field of anti-falling beams, and particularly relates to an anti-seismic anti-falling beam structure, wherein an anti-seismic seat is movably clamped at the top of a bridge pier, a fixed column is fixedly connected to the bottom of an anti-falling beam main body, a movable plate is slidably connected to the anti-seismic seat in a mounting cavity, the bottom end of the fixed column extends into the mounting cavity and is fixedly connected with the bottom of the movable plate, two telescopic rods are symmetrically and fixedly connected to the inner wall of the top of the mounting cavity, the bottom ends of the two telescopic rods are fixedly connected with the top of the movable plate, two ball screws are symmetrically and rotatably connected to the inner wall of the bottom of the mounting cavity, screw nuts are respectively in threaded connection with the two ball screws, two fixed rods are respectively and symmetrically and fixedly connected to the top of the two screw nuts, the top ends of the four fixed rods are respectively and fixedly connected with, the problem of current roof beam antidetonation structure that prevents falling single, the antidetonation effect is not good is solved.
Description
Technical Field
The invention belongs to the technical field of anti-falling beams, and relates to an anti-seismic anti-falling beam structure.
Background
The anti-falling beam is a connecting measure construction method for resisting earthquake and preventing beam body from falling or disengaging in a bridge structure: the bridge comprises connecting rod devices arranged between adjacent beam bodies or between a bridge abutment and the beam bodies, at least one flexible connecting system is formed in the full-length direction of the bridge, and each connecting rod device is composed of a connecting rod and a damper.
The existing anti-falling beam anti-seismic structure is single, and the anti-seismic effect is poor, so that the service life of a bridge can be shortened, the anti-falling beam is complex to operate when being assembled, and the construction efficiency is reduced, so that the anti-seismic anti-falling beam structure is provided, and the problem is solved.
Disclosure of Invention
In view of the above, the invention provides an anti-seismic and anti-falling beam structure, which aims to solve the problems that the service life of a bridge is shortened due to the fact that the existing anti-falling beam anti-seismic structure is single and poor in anti-seismic effect, and the anti-falling beam is complex to operate during assembly, so that the construction efficiency is reduced.
In order to achieve the purpose, the invention provides an anti-seismic and anti-falling beam structure, which comprises a bridge pier and an anti-falling beam main body, wherein an anti-seismic seat is movably clamped at the top of the bridge pier, a fixed column is fixedly connected at the bottom of the anti-falling beam main body, an installation cavity is arranged on the anti-seismic seat, a movable plate is connected in the installation cavity in a sliding manner, the bottom end of the fixed column extends into the installation cavity and is fixedly connected with the bottom of the movable plate, two telescopic rods are symmetrically and fixedly connected on the inner wall at the top of the installation cavity, the bottom ends of the two telescopic rods are fixedly connected with the top of the movable plate, first springs are sleeved on the two telescopic rods, the two ends of each first spring are respectively fixedly connected with the inner wall at the top of the installation cavity and the bottom of the movable plate, two ball screws are symmetrically and rotatably connected on the inner, two dead levers of the equal symmetrical fixedly connected with in top of two screw nut, the top of four dead levers all with the bottom fixed connection of movable plate, all fixed cover is equipped with the gear on two ball, the shock attenuation groove has all been seted up on the both sides inner wall of installation cavity, equal sliding connection has the buffer board in two shock attenuation grooves, the equal fixedly connected with buffer beam in one side that two buffer boards are close to each other, the equal fixedly connected with rack of one end that two buffer beams are close to each other, two racks mesh with two gears respectively, the equal fixedly connected with second spring in one side that two buffer boards kept away from each other, the one end that two second springs kept away from each other respectively with one side inner wall fixed connection of two shock attenuation grooves, two fixing bases of the symmetrical fixedly connected with in top of antidetonation seat all are equipped with the anti earthquake subassembly.
The beneficial effect of this basic scheme lies in: can assemble fast through rotating the threaded spindle, improve the efficiency of construction, and through horizontal shock attenuation and vertical shock attenuation, increased and prevented falling roof beam main part antidetonation effect, can also provide a reaction force simultaneously, further improved the shock resistance, make prevent falling roof beam main part can have fine antidetonation effect for the bridge can not receive the injury of vibrations, and then can improve the life of bridge.
Further, the second anti-vibration component comprises fixed chambers arranged on the two fixed seats and a rectangular plate connected in the fixed chambers in a sliding way, the bottom ends of the two connecting columns extend into the two fixed cavities respectively and are fixedly connected with the tops of the two rectangular plates respectively, the bottom of the rectangular plate is rotatably connected with a connecting rod, the inner wall of the bottom of the fixed cavity is slidably connected with a sliding plate, one end of the connecting rod is rotatably connected with the top of the sliding plate, a fixed shaft is rotatably connected on the inner wall of the bottom of the fixed cavity, a reel is fixedly sleeved on the fixed shaft, a pull rope is arranged on the reel, one end of the pull rope is fixedly connected with one side of the sliding plate, sliding connection has the screw thread seat on one side inner wall of fixed cavity, be equipped with the screw thread in the screw thread seat, the top of fixed axle extend to in the screw thread seat and with screw thread seat threaded connection. Has the advantages that: the rectangular plate is moved through the connecting column, the sliding plate can pull the pull rope under the action of the connecting rod, the reel drives the fixing shaft to rotate, the fixing shaft rotates to enable the threaded seat to move upwards, the threaded seat can be abutted against the rectangular plate, reaction force is generated, and shock resistance is further improved.
Further, the two sides of the anti-seismic seat are fixedly connected with fixing plates, the two fixing plates are connected with threaded shafts in a threaded mode, the top of the bridge abutment is symmetrically provided with two threaded holes, and the bottom ends of the two threaded shafts extend into the two threaded holes respectively and are clamped with the two threaded holes respectively. Has the advantages that: through rotating the threaded shaft, the threaded shaft and the threaded hole can be clamped, and then the anti-seismic seat and the anti-falling beam main body can be rapidly assembled with a bridge abutment, so that the operation is simple, and the construction efficiency is improved.
Further, the spout has all been seted up on the both sides inner wall of installation cavity, the both sides of movable plate extend respectively to in two spouts and respectively with one side inner wall sliding connection of two spouts, beneficial effect: the sliding groove can enable the moving plate to move stably.
Furthermore, the bottom of rack symmetry fixedly connected with two gag lever posts, the bottom of four gag lever posts all with the bottom inner wall sliding connection of installation cavity. Has the advantages that: the limiting rod can support the rack and can enable the rack to stably move.
Furthermore, the top of the anti-falling beam main body is symmetrically and fixedly connected with two check blocks, and the two check blocks are trapezoidal. Has the advantages that: the stop block is arranged on the outer side of the anti-falling beam main body, so that the bridge can be prevented from falling.
Furthermore, equal sliding connection has the limiting plate on the both sides inner wall of installation cavity, and one side that two limiting plates are close to each other is respectively with one side fixed connection that two screw nut kept away from each other. Has the advantages that: the limiting plate can limit the screw nut, so that the screw nut can only longitudinally move.
Further, a groove is formed in the inner wall of the bottom of the fixing cavity, the bottom end of the fixing shaft extends into the groove and is rotatably connected with the inner wall of the bottom of the groove, a torsion spring is sleeved on the fixing shaft, and two ends of the torsion spring are fixedly connected with the bottom of the reel and the inner wall of the bottom of the groove respectively. Has the advantages that: the torsion spring can provide reset power for the fixed shaft.
Furthermore, a rectangular groove is formed in the inner wall of the bottom of the fixed cavity, and the bottom of the sliding plate extends into the rectangular groove and is in sliding connection with the inner wall of the bottom of the rectangular groove. Has the advantages that: the rectangular groove enables the sliding plate to move more smoothly.
Furthermore, a cross rod is connected to the inner wall of one side of the fixed cavity in a sliding mode, and one end of the cross rod is fixedly connected with one side of the threaded seat. Has the advantages that: the cross rod can support the threaded seat and can enable the threaded seat to move more stably.
The invention has the beneficial effects that:
1. according to the anti-seismic and anti-falling beam structure disclosed by the invention, the threaded shaft on the fixing plate is rotated, so that the threaded shaft and the threaded hole can be clamped, and further, the anti-seismic seat and the anti-falling beam main body can be quickly assembled with a bridge abutment, the operation is simple, and the construction efficiency is improved.
2. According to the anti-seismic and anti-falling beam structure disclosed by the invention, the movable plate is moved through the fixed column, the telescopic rod can be stretched and contracted, so that the first spring is deformed to absorb longitudinal vibration, the screw nut can be moved through the fixed rod while the movable plate is moved, further the ball screw can be rotated, the rack can be transversely moved through the gear, and thus the second spring can be deformed to absorb transverse vibration force, and the anti-seismic effect is good.
3. According to the anti-seismic and anti-falling beam structure disclosed by the invention, the rectangular plate moves through the connecting column, the pull rope can be pulled by the sliding plate under the action of the connecting rod, the reel drives the fixed shaft to rotate, the threaded seat can move upwards by the rotation of the fixed shaft, the threaded seat can be abutted against the rectangular plate to generate a reaction force, and the anti-seismic capacity is further improved.
The anti-falling beam main body has a reasonable structure, can be quickly assembled by rotating the threaded shaft, improves the construction efficiency, increases the anti-falling beam main body anti-seismic effect by transverse shock absorption and longitudinal shock absorption, can provide a reaction force, further improves the anti-seismic capacity, enables the anti-falling beam main body to have a good anti-seismic effect, prevents the bridge from being damaged by vibration, and further prolongs the service life of the bridge.
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 front view of an earthquake-resistant drop-resistant beam structure of the present invention;
FIG. 2 is a schematic sectional view of an anti-seismic seat in an anti-seismic and anti-falling beam structure according to the present invention;
FIG. 3 is a schematic sectional view of a fixing base in an anti-seismic and anti-falling beam structure according to the present invention;
FIG. 4 is a schematic diagram of a three-dimensional structure of a rack in an anti-seismic and anti-falling beam structure according to the present invention;
FIG. 5 is an enlarged view of portion A of FIG. 2 according to the present invention.
The drawings are numbered as follows: 1 bridge pier, 2 anti-seismic seats, 3 anti-falling beam main bodies, 4 fixed columns, 5 installation cavities, 6 moving plates, 7 telescopic rods, 8 first springs, 9 fixed rods, 10 ball screws, 11 screw nuts, 12 gears, 13 racks, 14 damping grooves, 15 damping rods, 16 damping plates, 17 second springs, 18 fixed seats, 19 connecting columns, 20 fixed cavities, 21 rectangular plates, 22 sliding plates, 23 connecting rods, 24 fixed shafts, 25 reels, 26 threaded seats, 27 fixed plates, 28 threaded shafts, 29 sliding grooves, 30 limiting plates, 31 limiting rods, 32 transverse rods, 33 torsion springs, 34 stoppers and 35 rectangular grooves.
Detailed Description
The following is further detailed by way of specific embodiments:
as shown in figures 1-5, an anti-seismic and anti-falling beam structure comprises a bridge abutment 1 and an anti-falling beam main body 3, an anti-seismic seat 2 is movably clamped at the top of the bridge abutment 1, the bottom of the anti-falling beam main body 3 is fixedly connected with a fixed column 4 installed on the anti-seismic seat 2, an installation cavity 5 is arranged on the anti-seismic seat 2, a moving plate 6 is slidably connected in the installation cavity 5, the bottom end of the fixed column 4 extends into the installation cavity 5 and is fixedly connected with the bottom of the moving plate 6, two telescopic rods 7 are symmetrically and fixedly connected to the inner wall of the top of the installation cavity 5, the bottom ends of the two telescopic rods 7 are fixedly connected with the top of the moving plate 6, first springs 8 are sleeved on the two telescopic rods 7, the two ends of the two first springs 8 are respectively fixedly connected with the inner wall of the top of the installation cavity 5 and the bottom of the moving plate, the two ball screws 10 are all in threaded connection with screw nuts 11, the tops of the two screw nuts 11 are all symmetrically and fixedly connected with two fixed rods 9, the top ends of the four fixed rods 9 are all fixedly connected with the bottom of the movable plate 6, the two ball screws 10 are all fixedly sleeved with gears 12, the inner walls of two sides of the installation cavity 5 are all provided with damping grooves 14, the damping grooves 14 are all in sliding connection with damping plates 16, one sides of the two damping plates 16, which are close to each other, are all fixedly connected with damping rods 15, one ends of the two damping rods 15, which are close to each other, are all fixedly connected with racks 13, the two racks 13 are respectively meshed with the two gears 12, one sides of the two damping plates 16, which are far away from each other, are all fixedly connected with second springs 17, one ends of the two second springs 17, which are far away from each other, are respectively fixedly connected with the inner walls, all be equipped with the second on two fixing bases 18 and resist the shake subassembly, can assemble fast through rotating threaded shaft 28, improve the efficiency of construction, and through horizontal shock attenuation and vertical shock attenuation, increased and prevented 3 antidetonation effects of roof beam main part that fall, can also provide a reaction force simultaneously, further improved the shock resistance, make and prevent that roof beam main part 3 that falls can have fine antidetonation effect for the bridge can not receive the injury of vibrations, and then can improve the life of bridge.
In this embodiment, the second anti-vibration assembly includes two fixed cavities 20 disposed on the two fixed seats 18 and rectangular plates 21 slidably connected in the fixed cavities 20, two connecting posts 19 at the bottom of the anti-falling beam main body 3, bottom ends of the two connecting posts 19 respectively extend into the two fixed cavities 20 and are respectively fixedly connected with tops of the two rectangular plates 21, a connecting rod 23 is rotatably connected with the bottom of the rectangular plate 21, a sliding plate 22 is slidably connected on an inner wall of the bottom of the fixed cavity 20, one end of the connecting rod 23 is rotatably connected with the top of the sliding plate 22, a fixed shaft 24 is rotatably connected on an inner wall of the bottom of the fixed cavity 20, a reel 25 is fixedly sleeved on the fixed shaft 24, a pull rope is disposed on the reel 25, one end of the pull rope is fixedly connected with one side of the sliding plate 22, a screw seat 26 is slidably connected on an inner wall of one side of the fixed cavity 20, a thread is disposed in the, the rectangular plate 21 is moved through the connecting column 19, the sliding plate 22 can pull the pull rope under the action of the connecting rod 23, the reel 25 drives the fixing shaft 24 to rotate, the fixing shaft 24 rotates to enable the threaded seat 26 to move upwards, the threaded seat 26 can be abutted against the rectangular plate 21, reaction force is generated, and shock resistance is further improved.
In this embodiment, the equal fixedly connected with fixed plate 27 in both sides of antidetonation seat 2, equal threaded connection has threaded shaft 28 on two fixed plates 27, two screw holes have been seted up to bridge abutment 1's top symmetry, the bottom of two threaded shaft 28 extends to respectively in two threaded holes and clamps respectively with two threaded hole, through rotating threaded shaft 28, can make threaded shaft 28 clamp with the threaded hole, and then can make antidetonation seat 2 and prevent falling roof beam main part 3 and assemble with bridge abutment 1 fast, and is simple in operation, and the construction efficiency is improved.
In this embodiment, the inner walls of the two sides of the mounting cavity 5 are both provided with sliding grooves 29, the two sides of the moving plate 6 respectively extend into the two sliding grooves 29 and are respectively connected with the inner wall of one side of the two sliding grooves 29 in a sliding manner, and the sliding grooves 29 can enable the moving plate 6 to move stably.
In this embodiment, two stop levers 31 of the bottom symmetry fixedly connected with of rack 13, four stop levers 31's bottom all with the bottom inner wall sliding connection of installation cavity 5, stop lever 31 can support rack 13, and can make the removal that rack 13 can stabilize.
In this embodiment, prevent falling two dogs 34 of roof beam main part 3's top symmetry fixedly connected with, two dogs 34 are trapezoidal form, prevent falling roof beam main part 3 both sides and set up dog 34, and can prevent that the bridge from falling.
In this embodiment, equal sliding connection has limiting plate 30 on the both sides inner wall of installation cavity 5, and one side that two limiting plates 30 are close to each other is respectively with one side fixed connection that two screw nut 11 kept away from each other, and limiting plate 30 can carry on spacingly to screw nut 11, makes screw nut 11 can only longitudinal movement.
In this embodiment, a groove is formed on the inner wall of the bottom of the fixing cavity 20, the bottom end of the fixing shaft 24 extends into the groove and is rotatably connected with the inner wall of the bottom of the groove, a torsion spring 33 is sleeved on the fixing shaft 24, two ends of the torsion spring 33 are respectively fixedly connected with the bottom of the reel 25 and the inner wall of the bottom of the groove, and the torsion spring 33 can provide the fixing shaft 24 with restoring power.
In this embodiment, the inner wall of the bottom of the fixed chamber 20 is provided with a rectangular groove 35, the bottom of the sliding plate 22 extends into the rectangular groove 35 and is slidably connected with the inner wall of the bottom of the rectangular groove 35, and the rectangular groove 35 can enable the sliding plate 22 to move more smoothly.
In this embodiment, the inner wall of one side of the fixing chamber 20 is slidably connected with a cross bar 32, one end of the cross bar 32 is fixedly connected with one side of the threaded seat 26, and the cross bar 32 can support the threaded seat 26 and can enable the threaded seat 26 to move more stably.
The using method of the anti-seismic and anti-falling beam structure comprises the steps of firstly fixedly connecting an anti-seismic seat 2 with a bridge abutment 1, then placing the anti-seismic seat 2 and an anti-falling beam main body 3 on the bridge abutment 1, and then rotating two threaded shafts 28, wherein the threaded shafts 28 are in threaded connection with a fixing plate 27, so that the threaded shafts 28 can rotate downwards and can be clamped with threaded holes in the bridge abutment 1, the anti-seismic and anti-falling beam structure can be assembled quickly, and the construction efficiency is improved. The stop blocks 34 are arranged on the two sides of the anti-falling beam main body 3, so that the bridge can be prevented from falling.
When the anti-falling beam main body 3 is vibrated, the fixed column 4 can drive the movable plate 6 to move, the movable plate 6 can drive the two telescopic rods 7 to stretch and contract, the first spring 8 can deform and further can absorb vibration, the movable plate 6 can drive the lead screw nut 11 to move through the fixed rod 9, as the lead screw nut 11 is in threaded connection with the ball screw 10 and the transmission of the lead screw nut and the ball screw is reversible, the ball screw 10 can rotate due to the movement of the lead screw nut 11, the ball screw 10 can drive the rack 13 to transversely move through the gear 12, the rack 13 can drive the buffer plate 16 to move through the buffer rod 15, the second spring 17 can deform and further absorb transverse vibration force, when the anti-falling beam main body 3 is vibrated, the two connecting columns 19 can move downwards, and the two rectangular plates 21 can respectively move downwards due to the transverse movement of the two connecting columns 19, rectangular plate 21 can make sliding plate 22 remove through the effect of connecting rod 23, thereby can stimulate the stay cord, can drive fixed axle 24 through reel 25 and rotate, because fixed axle 24 is threaded connection with screw thread seat 26, so fixed axle 24 rotates and can make screw thread seat 26 upwards move, screw thread seat 26 can offset with rectangular plate 21, produce the reaction force, the shock resistance has further been improved, make the antidetonation effectual, make and prevent falling roof beam main part 3 and can have fine antidetonation effect, make the bridge can not receive the injury of vibrations, and then can improve the life of bridge.
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.
Claims (10)
1. An anti-seismic and anti-falling beam structure comprises a bridge abutment (1) and an anti-falling beam main body (3), and is characterized in that an anti-seismic seat (2) is movably clamped at the top of the bridge abutment (1), a fixed column (4) is fixedly connected at the bottom of the anti-falling beam main body (3), an installation cavity (5) is arranged on the anti-seismic seat (2), a moving plate (6) is connected in the installation cavity (5) in a sliding manner, the bottom end of the fixed column (4) extends into the installation cavity (5) and is fixedly connected with the bottom of the moving plate (6), two telescopic rods (7) are symmetrically and fixedly connected on the inner wall of the top of the installation cavity (5), the bottom ends of the two telescopic rods (7) are fixedly connected with the top of the moving plate (6), first springs (8) are sleeved on the two telescopic rods (7), and two ends of the two first springs (8) are respectively fixedly connected with the inner wall of the top of the installation cavity (5) and, the bottom inner wall of the installation cavity (5) is symmetrically and rotatably connected with two ball screws (10), the two ball screws (10) are respectively in threaded connection with a screw nut (11), the tops of the two screw nuts (11) are respectively and symmetrically and fixedly connected with two fixed rods (9), the top ends of the four fixed rods (9) are respectively and fixedly connected with the bottom of the movable plate (6), the two ball screws (10) are respectively and fixedly sleeved with a gear (12), the inner walls of the two sides of the installation cavity (5) are respectively provided with a damping groove (14), the two damping grooves (14) are respectively and slidably connected with a buffer plate (16), one sides of the two buffer plates (16) close to each other are respectively and fixedly connected with a buffer rod (15), one ends of the two buffer rods (15) close to each other are respectively and fixedly connected with a rack (13), and the two racks (13) are respectively meshed with the, equal fixedly connected with second spring (17) in one side that two buffer board (16) kept away from each other, the one end that two second springs (17) kept away from each other respectively with one side inner wall fixed connection of two shock attenuation grooves (14), two fixing bases (18) of the symmetrical fixedly connected with in top of antidetonation seat (2), all be equipped with the second on two fixing bases (18) and resist the shake subassembly.
2. An earthquake-proof and drop-proof beam structure according to claim 1, wherein the second earthquake-proof component comprises two fixed cavities (20) arranged on two fixed seats (18) and rectangular plates (21) slidably connected in the fixed cavities (20), two connecting columns (19) at the bottom of the drop-proof beam main body (3), the bottom ends of the two connecting columns (19) respectively extend into the two fixed cavities (20) and are respectively fixedly connected with the tops of the two rectangular plates (21), the bottom of the rectangular plate (21) is rotatably connected with a connecting rod (23), a sliding plate (22) is slidably connected on the inner wall of the bottom of the fixed cavity (20), one end of the connecting rod (23) is rotatably connected with the top of the sliding plate (22), a fixed shaft (24) is rotatably connected on the inner wall of the bottom of the fixed cavity (20), a winding wheel (25) is arranged on the fixed shaft (24), the spinning reel (25) is provided with a pull rope, one end of the pull rope is fixedly connected with one side of the sliding plate (22), the inner wall of one side of the fixed cavity (20) is connected with a threaded seat (26) in a sliding mode, threads are arranged in the threaded seat (26), and the top end of the fixed shaft (24) extends into the threaded seat (26) and is in threaded connection with the threaded seat (26).
3. An earthquake-proof and drop-proof beam structure according to claim 1, wherein fixing plates (27) are fixedly connected to both sides of the earthquake-proof seat (2), threaded shafts (28) are connected to both the fixing plates (27) in a threaded manner, two threaded holes are symmetrically formed in the top of the bridge abutment (1), and the bottom ends of the two threaded shafts (28) extend into and are clamped with the two threaded holes respectively.
4. An earthquake-proof and drop-proof beam structure according to claim 1, wherein the inner walls of the two sides of the installation cavity (5) are provided with sliding grooves (29), and the two sides of the moving plate (6) respectively extend into the two sliding grooves (29) and are respectively connected with the inner wall of one side of the two sliding grooves (29) in a sliding manner.
5. An earthquake-resistant and drop-proof beam structure according to claim 1, wherein the bottom of the rack (13) is symmetrically and fixedly connected with two limiting rods (31), and the bottom ends of the four limiting rods (31) are all connected with the inner wall of the bottom of the mounting chamber (5) in a sliding manner.
6. An earthquake-proof falling-proof beam structure as claimed in claim 1, characterized in that two stoppers (34) are symmetrically and fixedly connected to the top of the falling-proof beam main body (3), and the two stoppers (34) are in a trapezoidal shape.
7. An earthquake-proof and drop-proof beam structure according to claim 1, wherein the inner walls of the two sides of the installation chamber (5) are both connected with a limiting plate (30) in a sliding manner, and the side of the two limiting plates (30) close to each other is fixedly connected with the side of the two lead screw nuts (11) far away from each other.
8. An earthquake-proof and drop-proof beam structure according to claim 2, wherein the bottom inner wall of the fixing chamber (20) is provided with a groove, the bottom end of the fixing shaft (24) extends into the groove and is rotatably connected with the bottom inner wall of the groove, the fixing shaft (24) is sleeved with a torsion spring (33), and two ends of the torsion spring (33) are respectively fixedly connected with the bottom of the reel (25) and the bottom inner wall of the groove.
9. An earthquake-proof and drop-proof beam structure according to claim 2, wherein the inner wall of the bottom of the fixed chamber (20) is provided with a rectangular groove (35), and the bottom of the sliding plate (22) extends into the rectangular groove (35) and is connected with the inner wall of the bottom of the rectangular groove (35) in a sliding manner.
10. An earthquake-proof and drop-proof beam structure according to claim 2, characterized in that a cross bar (32) is slidably connected to the inner wall of one side of the fixed chamber (20), and one end of the cross bar (32) is fixedly connected to one side of the threaded seat (26).
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| CN202010683478.4A CN111877136B (en) | 2020-07-16 | 2020-07-16 | Anti-seismic and anti-falling beam structure |
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| CN202010683478.4A CN111877136B (en) | 2020-07-16 | 2020-07-16 | Anti-seismic and anti-falling beam structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112227235A (en) * | 2020-11-13 | 2021-01-15 | 重庆交通大学 | Bridge is consolidated and is prevented roof beam body structure that falls |
| CN112227185A (en) * | 2020-11-20 | 2021-01-15 | 温州顺启建筑有限公司 | Beam falling prevention device based on bridge body shock absorption |
| CN112342940A (en) * | 2020-11-05 | 2021-02-09 | 贵州路桥集团有限公司 | Steel-concrete composite beam bridge deck reinforcing device |
| CN112376410A (en) * | 2020-11-13 | 2021-02-19 | 重庆交通大学 | Self-balancing type beam falling prevention support |
| CN112458875A (en) * | 2020-11-18 | 2021-03-09 | 温州方舵建筑有限公司 | Assembled beam buffer that prevents falling |
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| CN112342940A (en) * | 2020-11-05 | 2021-02-09 | 贵州路桥集团有限公司 | Steel-concrete composite beam bridge deck reinforcing device |
| CN112342940B (en) * | 2020-11-05 | 2022-09-13 | 贵州路桥集团有限公司 | Steel-concrete composite beam bridge deck reinforcing device |
| CN112227235A (en) * | 2020-11-13 | 2021-01-15 | 重庆交通大学 | Bridge is consolidated and is prevented roof beam body structure that falls |
| CN112376410A (en) * | 2020-11-13 | 2021-02-19 | 重庆交通大学 | Self-balancing type beam falling prevention support |
| CN112376410B (en) * | 2020-11-13 | 2022-04-05 | 重庆交通大学 | Self-balancing type beam falling prevention support |
| CN112458875A (en) * | 2020-11-18 | 2021-03-09 | 温州方舵建筑有限公司 | Assembled beam buffer that prevents falling |
| CN112227185A (en) * | 2020-11-20 | 2021-01-15 | 温州顺启建筑有限公司 | Beam falling prevention device based on bridge body shock absorption |
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