Bridge anti-collision device based on bridge safety performance

Abstract

The utility model discloses a bridge anti-collision device based on bridge safety performance, and belongs to the technical field of bridge anti-collision devices. Comprising a bridge body, a plurality of anti-collision units are fixed to the bridge body at intervals, each anti-collision unit comprises a force unloading buffering unit, a supporting arch frame and a tension spring, each force unloading buffering unit comprises an upper end cover and a lower end cover, and the upper end covers and the lower end covers are sleeved with canvas protection sleeves; an air bag is embedded in the inner side of the canvas protective sleeve; an air inlet nozzle of the air bag is embedded and fixed on the upper end cover; a middle pull column is fixed to the faces, away from each other, of the upper end cover and the lower end cover. The supporting arch frame comprises a lower seat body and an upper seat body, and an arch-shaped beam is fixed between the upper seat body and the lower seat body; a flange hole fixed with a bridge embedded part is formed in the lower seat body; according to the bridge anti-collision device based on the bridge safety performance, the impact force of a vehicle can be well decomposed, and waste of the space used by the bridge cannot be caused.

Description

Technical Field

[0001] The utility model specifically relates to a bridge anti-collision device based on bridge safety performance, belonging to the technical field of bridge anti-collision devices. Background Art

[0002] In order to improve the safety of bridges and prevent vehicles from falling, there are currently two solutions. One is to improve the strength of guardrails, and the other is to add vibration reduction devices to the guardrails. However, the existing vibration reduction devices have poor buffering effects and cannot reduce the damage caused by vehicle collisions. For this reason, this disclosure has a publication number of CN118581801A, which discloses a bridge anti-collision device based on bridge safety performance, including a support component fixed to a beam bridge body, and an anti-collision component is provided on the side of the support component facing the vehicle passage. The structure can guide the impact direction of the out-of-control vehicle so that the impact force is transferred, reducing the impact force on the front of the bridge, protecting the bridge while reducing the impact force; it can gradually absorb and disperse the impact force layer by layer, maximize the transfer and dispersion of the impact force, extend the buffering time of the anti-collision device, and reduce the impact force on the bridge body and the vehicle; but the structure can decompose the frontal impact force, but the decomposition ability of the inclined impact force is limited. In addition, when the structure is installed, it needs to occupy a certain internal space of the bridge, which is easy to cause a waste of the internal space of the bridge. Utility Model Content

[0003] In order to solve the above problems, the utility model proposes a bridge anti-collision device based on the safety performance of the bridge, which can well decompose the impact force of the vehicle and will not cause waste of the bridge use space.

[0004] The utility model provides a bridge anti-collision device based on bridge safety performance, comprising a bridge body, on which a plurality of anti-collision units are fixed at intervals, and the anti-collision units include:

[0005] The force unloading buffer unit comprises an upper end cover and a lower end cover, the upper end cover and the lower end cover are sleeved with a canvas protective cover on the outside; an air bag is embedded inside the canvas protective cover; the air inlet nozzle of the air bag is embedded and fixed on the upper end cover; an intermediate pulling column is fixed on one side of the upper end cover and the lower end cover away from each other;

[0006] The supporting arch frame comprises a lower seat and an upper seat, an arch beam is fixed between the upper seat and the lower seat; a flange hole fixed to the embedded bridge part is provided on the lower seat; slots are provided on the top and bottom of the arch beam; end tie columns are fixed on one side of the lower seat and the upper seat close to each other;

[0007] A tension spring, wherein the tension spring is elastically connected between the end tension column and the middle tension column;

[0008] The bridge body comprises a plurality of columns fixed at intervals on the bridge; a crossbar is fixed between the columns; and the notch is movably connected with the crossbar;

[0009] Before installation, the supporting arch frame and the force-unloading buffer unit are installed as one. During installation, the columns and crossbars of the bridge body are first completed, and then the notches of the supporting arch frame are aligned with the crossbars respectively. Then, the lower seat of the supporting arch frame is fixed to the embedded parts of the bridge, and the supporting arch frame is protruded to the outside of the bridge; and because the vehicle chassis has a certain height, it can prevent the front of the vehicle from hitting the crossbar at the bottom of the bridge body;

[0010] When the anti-collision unit prevents collision, deformation buffering is first completed through the deformation of the airbag, and then a bow-shaped elastic stroke is formed by the supporting arch frame, tension spring and force unloading buffer unit, and the stroke is used to further unload the impact force of the vehicle. At the same time, when the airbag contacts the arch beam, the airbag is deformed again due to the limitation of the arch beam and the reaction force of the elastic stroke, recoil unloading is realized, which can well decompose the impact force of the vehicle, or the impact force of the vehicle can be decomposed through the deformation buffer of the adjacent airbag and the action of the tension spring; the recoil unloading is completed by the reaction force of the elastic stroke, which can well buffer and unload the impact force of the vehicle.

[0011] Furthermore, a crossbeam is fixed on the top and bottom of the column, and a plurality of slots are integrally formed on the crossbeam at intervals; the ends of the lower seat body and the upper seat body are movably engaged with the slots; the top and bottom of the supporting arch frame are limited by the crossbeam, thereby increasing the stable installation of the supporting arch frame and the bridge body; the two ends of the supporting arch frame are limited by the crossbeam, thereby avoiding excessive deformation of the supporting arch frame.

[0012] Furthermore, an elastic protective sleeve is provided between the upper end cover and the lower end cover, and the elastic protective sleeve covers the outside of the tension spring; the elastic protective sleeve can protect the tension spring and prevent the tension spring from rusting.

[0013] Furthermore, a plurality of force-bearing ear seats are fixed to one side of the arched beam close to the force unloading buffer unit; the deformation force of the airbag can be increased by the force-bearing ear seats.

[0014] Furthermore, a hinged seat is fixed on one side of the arched beam close to the force unloading buffer unit, a force-bearing swing plate is hinged on the hinged seat, arc-shaped spring plates are fixed at both ends of the force-bearing swing plate, and the arc-shaped spring plates are in contact with the arched beam; when the force unloading buffer unit is impacted, the force unloading buffer unit is pressed onto one end of the force-bearing swing plate, thereby unloading the impact force through the arc-shaped spring plates being pressed onto the arched beam.

[0015] Furthermore, the arched beam is a wavy structure. Through the wavy arched beam structure, when the force unloading buffer unit is impacted, the arched beam can deform itself to unload the force. When the impact force disappears, the arched beam automatically returns to its original state.

[0016] Compared with the prior art, the utility model is a bridge anti-collision device based on bridge safety performance. When a vehicle collides head-on with the unloading buffer unit, the vehicle first contacts the airbag, and the contact-type unloading is achieved through the elastic deformation of the airbag. As the impact force of the vehicle continues, the supporting arch frame, the tension spring and the unloading buffer unit form an elastic stroke in the shape of an arrow, and the impact force of the vehicle is further unloaded by the stroke. At the same time, when the airbag contacts the arch beam, the airbag is deformed again by the limitation of the arch beam and the reaction force of the elastic stroke, so as to achieve recoil unloading, which can well decompose the impact force of the vehicle. When the vehicle inclination angle impacts the unloading buffer unit, the contact-type unloading is completed in sequence, and the recoil unloading of the reaction force of the impact force of the vehicle and the elastic stroke is achieved. In addition, the unloading buffer unit cooperates with the bridge body and can be erected outside the bridge, so as not to waste the space used by the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the anti-collision unit of the utility model.

[0018] Figure 2 The utility model is a schematic diagram of the installation structure of a bridge body and an anti-collision unit according to an embodiment of the present invention.

[0019] Figure 3 It is a schematic diagram of the installation structure of another embodiment of the bridge body and anti-collision unit of the utility model.

[0020] Figure 4 It is a schematic diagram of the installation structure of the force-unloading buffer unit and the force-bearing ear seat of the utility model.

[0021] Figure 5 It is a schematic diagram of the installation structure of the force-unloading buffer unit and the force-bearing swing plate of the utility model.

[0022] Figure numerals: 1. upper end cover, 2. lower end cover, 3. canvas protective cover, 4. middle pull column, 5. lower seat body, 6. upper seat body, 7. arched beam, 8. flange hole, 9. notch, 10. end pull column, 11. tension spring, 12. cross bar, 13. cross beam, 14. groove seat, 15. elastic protective cover, 16. force-bearing ear seat, 17. hinged seat, 18. force-bearing swing plate, 19. arc-shaped spring piece. DETAILED DESCRIPTION

[0023] Example:

[0024] like Figures 1 to 5 The bridge anti-collision device based on bridge safety performance shown includes a bridge body, on which a plurality of anti-collision units are fixed at intervals, and the anti-collision units include:

[0025] The force unloading buffer unit comprises an upper end cover 1 and a lower end cover 2, wherein the upper end cover 1 and the lower end cover 2 are sleeved with a canvas protective cover 3 on the outside; an air bag is embedded inside the canvas protective cover 3; an air inlet nozzle of the air bag is embedded and fixed on the upper end cover 1; an intermediate pulling column 4 is fixed on one side of the upper end cover 1 and the lower end cover 2 away from each other;

[0026] The supporting arch frame comprises a lower seat body 5 and an upper seat body 6, an arch beam 7 is fixed between the upper seat body 6 and the lower seat body 5; a flange hole 8 fixed to the bridge embedded part is opened on the lower seat body 5; slots 9 are opened on the top and bottom of the arch beam 7; an end tie column 10 is fixed on one side of the lower seat body 5 and the upper seat body 6 close to each other;

[0027] A tension spring 11, wherein the tension spring 11 is elastically connected between the end tension column 10 and the middle tension column 4;

[0028] The bridge body comprises a plurality of columns fixed at intervals on the bridge; a crossbar 12 is fixed between the columns; the notch 9 is movably engaged with the crossbar 12;

[0029] Before installation, the supporting arch frame and the force unloading buffer unit are first installed as a whole. During installation, the columns and cross bars 12 of the bridge body are first completed, and then the notches 9 of the supporting arch frame are respectively aligned with the cross bars 12. Then, the lower seat body 5 of the supporting arch frame is fixed to the embedded parts of the bridge, and the supporting arch frame is protruded to the outside of the bridge; and because the vehicle chassis has a certain height, it can prevent the front of the vehicle from hitting the cross bar 12 at the bottom of the bridge body;

[0030] When the anti-collision unit prevents collision, deformation buffering is first completed through the deformation of the airbag, and then a bow-shaped elastic stroke is formed by the supporting arch frame, the tension spring 11 and the force unloading buffer unit, and the stroke is used to further unload the impact force of the vehicle. At the same time, when the airbag contacts the arch beam 7, the airbag is limited by the arch beam 7 to deform again, and the reaction force of the elastic stroke is used to realize recoil unloading, which can well decompose the impact force of the vehicle, or through the deformation buffer of the adjacent airbag and the action of the tension spring 11, the impact force of the vehicle is decomposed; the reaction force of the elastic stroke is used to complete the recoil unloading, which can well buffer and unload the impact force of the vehicle.

[0031] A crossbeam 13 is fixed on the top and bottom of the column, and a plurality of slot seats 14 are integrally formed on the crossbeam 13 at intervals; the ends of the lower seat 5 and the upper seat 6 are movably engaged with the slot seats 14; the top and bottom of the supporting arch frame are limited by the crossbeam 13, thereby increasing the stable installation of the supporting arch frame and the bridge body; the two ends of the supporting arch frame are limited by the crossbeam 13 to avoid excessive deformation of the supporting arch frame.

[0032] An elastic protective sleeve 15 is disposed between the upper end cover 1 and the lower end cover 2 , and the elastic protective sleeve 15 covers the outside of the tension spring 11 ; the elastic protective sleeve 15 can protect the tension spring 11 and prevent the tension spring 11 from rusting.

[0033] A plurality of force-bearing ear seats 16 are fixed to one side of the arched beam 7 close to the force-unloading buffer unit; the force-bearing ear seats 16 can increase the deformation force of the airbag.

[0034] A hinge seat 17 is fixed on one side of the arched beam 7 close to the force unloading buffer unit, and a force-bearing swing plate 18 is hinged on the hinge seat 17. Arc-shaped spring pieces 19 are fixed at both ends of the force-bearing swing plate 18, and the arc-shaped spring pieces 19 are in contact with the arched beam 7; when the force unloading buffer unit is impacted, the force unloading buffer unit is pressed onto one end of the force-bearing swing plate 18, thereby being pressed onto the arched beam 7 through the arc-shaped spring piece 19, thereby achieving force unloading of the impact force.

[0035] The arched beam 7 is a wavy structure. When the force unloading buffer unit is impacted, the arched beam 7 can deform itself to unload the force. When the impact force disappears, the arched beam 7 automatically returns to its original state.

[0036] The above embodiments are only preferred implementations of the present invention, so any equivalent changes or modifications made according to the structures, features and principles described in the scope of application of the present invention are included in the scope of application of the present invention.

Claims

1. A bridge anti-collision device based on bridge safety performance, characterized in that: The invention comprises a bridge body, on which a plurality of anti-collision units are fixed at intervals, and the anti-collision units comprise: The force unloading buffer unit comprises an upper end cover and a lower end cover, the upper end cover and the lower end cover are sleeved with a canvas protective cover on the outside; an air bag is embedded inside the canvas protective cover; the air inlet nozzle of the air bag is embedded and fixed on the upper end cover; an intermediate pulling column is fixed on one side of the upper end cover and the lower end cover away from each other; The supporting arch frame comprises a lower seat and an upper seat, an arch beam is fixed between the upper seat and the lower seat; a flange hole fixed to the embedded bridge part is provided on the lower seat; slots are provided on the top and bottom of the arch beam; end tie columns are fixed on one side of the lower seat and the upper seat close to each other; A tension spring, wherein the tension spring is elastically connected between the end tension column and the middle tension column; The bridge body comprises a plurality of columns fixed on the bridge at intervals; a cross bar is fixed between the columns; and the notch is movably connected with the cross bar.

2. The bridge anti-collision device based on bridge safety performance according to claim 1 is characterized in that: A crossbeam is fixed on the top and bottom of the column, and a plurality of slot seats are integrally formed on the crossbeam at intervals; the ends of the lower seat body and the upper seat body are movably engaged with the slot seats.

3. The bridge anti-collision device based on bridge safety performance according to claim 1 is characterized in that: An elastic protective sleeve is arranged between the upper end cover and the lower end cover, and the elastic protective sleeve is covered on the outside of the tension spring.

4. The bridge anti-collision device based on bridge safety performance according to claim 1 is characterized in that: A plurality of force-bearing ear seats are fixed on one side of the arched beam close to the force unloading buffer unit.

5. The bridge anti-collision device based on bridge safety performance according to claim 1 is characterized in that: A hinge seat is fixed on one side of the arched beam close to the force unloading buffer unit, a force-bearing swing plate is hinged on the hinge seat, arc-shaped spring pieces are fixed at both ends of the force-bearing swing plate, and the arc-shaped spring pieces are in contact with the arched beam.

6. The bridge anti-collision device based on bridge safety performance according to claim 1 is characterized in that: The arched beam is a wave-shaped structure.

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