CN115387267A

CN115387267A - Public road bridge roof beam buffer stop

Info

Publication number: CN115387267A
Application number: CN202210851716.7A
Authority: CN
Inventors: 肖香风; 胡梁
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2022-11-25

Abstract

The invention relates to the technical field of highway bridge safety, and discloses a highway bridge anti-collision device. This public road bridge roof beam buffer stop includes the second bottom plate of first bottom plate and first bottom plate one side, flexible connection structure is installed to one side of first bottom plate, the locking structure is installed to the opposite side of first bottom plate, first bottom plate is unanimous with second bottom plate structure, striking energy-absorbing structure is installed to the upper end of first bottom plate, striking energy-absorbing structure installs the upper end and prevents the resilience structure, flexible connection structure includes the link, the back shaft, the pivot outer loop, extend link and fixed shaft post, the inboard of link is equipped with the back shaft, the pivot outer loop is installed in the outside of back shaft, one side of pivot outer loop is equipped with extends the link. The device can be installed without measuring the peripheral dimension of the foundation pile, can adapt to the installation operation of various bridge foundation piles, has wide application range and convenient operation, and greatly improves the flexibility and convenience of the device.

Description

Public road bridge roof beam buffer stop

Technical Field

The invention relates to the technical field of highway bridges, and particularly provides a highway bridge anti-collision device.

Background

In the construction of traffic infrastructure, a highway bridge is a very important part, and the highway bridge has important significance for guaranteeing the life safety of people by not only considering whether the highway traffic transportation task in China can be smoothly carried out, but also influencing the overall support of a bridge body if a foundation pile of the highway bridge and a bridge is impacted, so that higher potential safety hazards exist, and various protection measures are needed in the face of the impacts.

However, the existing anti-collision structure is usually installed around the periphery of the foundation pile of the highway, and needs to be designed and positioned according to the specific size of the foundation, and this way makes the use of the protective structure extremely troublesome, has low flexibility, and is difficult to adapt to the installation and protection operation of various foundation sizes.

Disclosure of Invention

The invention provides a highway bridge anti-collision device which has the beneficial effects of flexible installation and wide adaptability, and solves the problems that the existing anti-collision structure in the background art is usually installed around the periphery of a highway foundation pile and needs to be designed and positioned according to the specific size of a foundation, and the secondary mode causes the use of a protection structure to be extremely troublesome, has low flexibility and is difficult to adapt to installation and protection operation of various foundation sizes.

The invention provides the following technical scheme: the utility model provides a public road bridge roof beam buffer stop, includes the second bottom plate of first bottom plate and first bottom plate one side, flexible connection structure is installed to one side of first bottom plate, the locking structure is installed to the opposite side of first bottom plate, first bottom plate is unanimous with second bottom plate structure, striking energy-absorbing structure is installed to the upper end of first bottom plate, striking energy-absorbing structure installs the structure of preventing kick-backing in the upper end, flexible connection structure includes link, back shaft, pivot outer loop, extends link and fixed jack post, the inboard of link is equipped with the back shaft, the pivot outer loop is installed in the outside of back shaft, one side of pivot outer loop is equipped with extends the link, the one end of extending the link is equipped with fixed jack post, locking structure includes the side frame, extends grillage, inside groove, first spacing circular slot and the spacing circular slot of second, the inside of side frame is equipped with the inside groove, the one end of side frame is installed and is extended the grillage, one side frame's one side is equipped with first spacing circular slot, extend the one side frame is equipped with the spacing circular slot of second spacing circular slot, first spacing circular slot and the spacing circular slot combination forms the location circular slot, the fixed jack post is used for the location circular slot.

As an alternative to the road and bridge impact protection device of the present invention, wherein: the utility model discloses a side frame, including side frame, extension grillage, pinhole, cooperation jack, support shaft sleeve, the inside sliding connection of support shaft sleeve has the support axostylus axostyle, the shrink spring is installed with the outside of support axostylus axostyle to the pinhole.

As an alternative to the road and bridge impact protection device of the present invention, wherein: wall laminating buffer structure is installed to the lower extreme of first bottom plate, wall laminating buffer structure is including supporting the swash plate and laminating sheet layer, the lower extreme that supports the swash plate is equipped with the laminating sheet layer.

As an alternative to the road and bridge impact protection device of the present invention, wherein: the upper end of laminating sheet layer is installed and is supported the pivot, two support and install buffer structure between the swash plate, buffer structure includes folding cover, ripple energy-absorbing board and supporting shoe, the internally mounted of folding cover has ripple energy-absorbing board.

As an alternative to the road and bridge impact protection device of the present invention, wherein: the corrugated energy absorption plate is in a bent state, and a supporting block is arranged at a bent position in the corrugated energy absorption plate and used for increasing the supporting pressure of the corrugated energy absorption plate.

As an alternative to the road and bridge impact protection device of the present invention, wherein: the anti-rebound structure comprises an air bag shell, a partition layer, an upper clamping hook, a lower clamping hook and a clamping pin block, wherein the partition layer is arranged in the air bag shell, the upper end of the partition layer is provided with the upper clamping hook, the lower end of the partition layer is provided with the lower clamping hook, and the upper clamping hook and one end of the lower clamping hook are provided with the clamping pin block.

As an alternative to the road and bridge impact protection device of the present invention, wherein: the impact energy-absorbing structure comprises an energy-absorbing shell, a connecting rod, a piston, a through hole and a lower cavity, wherein the lower cavity is arranged in the energy-absorbing shell, the connecting rod is further arranged in the energy-absorbing shell, the piston is arranged at the lower end of the connecting rod, the through hole is formed in the piston, oil is filled in the lower cavity, the upper space and the lower space are divided into the upper space and the lower space through the piston in the energy-absorbing shell, the upper space is the upper cavity, the lower space is the lower cavity, and a sealing edge is installed on the outer side of the piston.

As an alternative to the highway bridge anti-collision device of the present invention, wherein: the inside of piston is equipped with the feed liquor pipe groove, the one end in feed liquor pipe groove is equipped with out the liquid tubule.

As an alternative to the road and bridge impact protection device of the present invention, wherein: the inside of feed liquor pipe groove is equipped with the continuous groove pipe of annular, the continuous groove pipe of annular is used for increasing buffer pressure.

As an alternative to the road and bridge impact protection device of the present invention, wherein: the ball valve is arranged in the circulation hole, the supporting spring is arranged on one side of the ball valve, a cavity is arranged between the two sealing edges, the cavity is a spacing groove, and a shunting groove is arranged on one side of the circulation hole.

The invention has the following beneficial effects:

1. this public road bridge roof beam buffer stop, cooperation through spacing circular slot of second and first spacing circular slot, for fixed jack-post provides the fixed action, and extend the grillage when turning over, can stimulate fixed jack-post, make between first bottom plate and the second bottom plate inwards draw close, stability when improving the installation, cooperation through flexible connection structure and locking structure, for providing connection structure between first bottom plate and the second bottom plate, make first bottom plate and second bottom plate can interconnect and the laminating install the outside at bridge foundation pile, and the quantity of first bottom plate and second bottom plate can make the change according to the size of foundation pile, the peripheral size that need not to measure the foundation pile can install, and the installation operation that the device can adapt to multiple bridge foundation pile, wide application range, and convenient operation, the flexibility and the convenience of device have been increased to very big degree.

2. This highway bridge buffer stop, cooperation through striking energy-absorbing structure inner structure, the mobile power of falling potential energy conversion fluid of piston, reduce the flow that fluid passes through runner hole and feed liquor pipe inslot again, be used for slowing down the falling speed of piston, and piston whereabouts effort is big more, pressure that causes the fluid in the cavity of resorption is just big more, thereby make fluid when flowing through runner hole and feed liquor pipe inslot portion, then can be faster, thereby the absorption mode of effort has been changed, can cushion and absorb the effort of whereabouts completely, ingenious whereabouts kinetic energy of having alleviated the device, and the kinetic energy of whereabouts is big more, then absorbed kinetic energy is just big more, make the kinetic energy absorption that the device can adapt to great effort.

3. This public road bridge roof beam buffer stop, cooperation through last trip and lower trip, make first bottom plate when taking place the striking, after the gasbag shell absorbs kinetic energy, can take place sunken, then can push down the layer of cutting apart, through trip reciprocal anchorage, gasbag shell after will sinking carries out mutual adhesion with the layer of cutting apart and glues, avoid kick-backing to cause secondary damage, thereby make the device possess kinetic energy absorption and prevent the rebound effect, effect through ripple energy-absorbing plate, receive the effort extrusion after, then can be directly according to body structure with ripple energy-absorbing plate, fold, produce deformation after making ripple energy-absorbing plate absorbed pressure, and in the time of folding, and can go on, slow down the inside pressure of support swash plate, and a plurality of ripple energy-absorbing plates simultaneous working, then can absorb most striking effort, cooperation through wall laminating buffer structure and buffer structure, can avoid the device to receive the striking and produce the effort, transmit to the foundation pile body, thereby realize the power-off function of device.

Drawings

Fig. 1 is a schematic structural view of the whole of the present invention.

Fig. 2 is a schematic view of the telescopic connection structure and the locking structure of the present invention.

FIG. 3 is a schematic view of a wall surface attachment buffer structure according to the present invention.

Fig. 4 is a schematic view of the wall surface attachment buffer structure and the buffer structure of the present invention.

FIG. 5 is a schematic view of the internal structure of an energy absorbing shell according to the present invention.

Fig. 6 is a schematic view of the internal structure of the piston according to the present invention.

FIG. 7 is a schematic view of the structure of FIG. 6A according to the present invention.

FIG. 8 is a schematic diagram of a split layer structure according to the present invention.

In the figure: 1. a first base plate; 2. a second base plate; 4. an anti-rebound structure; 41. an air bag housing; 42. dividing the layer; 43. mounting a clamping hook; 44. a lower clamping hook; 45. a latch block; 5. a telescopic connection structure; 51. a connecting end; 52. a support shaft; 53. a rotating shaft outer ring; 54. an extension link; 55. fixing the shaft column; 56. a support shaft; 57. a support shaft sleeve; 58. a retraction spring; 6. a locking structure; 61. a side frame; 62. an extension plate frame; 63. an inner tank; 64. a first limit circular groove; 65. a second limit circular groove; 66. a pin hole; 67. A mating jack; 7. the wall surface is attached with a buffer structure; 71. supporting the inclined plate; 72. laminating the plate layer; 73. supporting the rotating shaft; 8. a buffer structure; 81. a folding cover; 82. a corrugated energy absorbing plate; 83. a support block; 9. an impact energy absorbing structure; 91. an energy absorbing housing; 92. a connecting rod; 93. a piston; 94. a flow-through hole; 95. a lower cavity; 96. an upper cavity; 97. a ball valve; 98. a support spring; 99. a liquid inlet pipe groove; 910. an annular continuous groove tube; 911. a liquid outlet thin tube; 912. a spacing groove; 913. a shunt slot; 914. and (7) sealing the edges.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-3, the anti-collision device for highway bridges comprises a first bottom plate 1 and a second bottom plate 2 on one side of the first bottom plate 1, a telescopic connection structure 5 is installed on one side of the first bottom plate 1, a locking structure 6 is installed on the other side of the first bottom plate 1, the first bottom plate 1 and the second bottom plate 2 are structurally identical, an impact energy absorption structure 9 is installed at the upper end of the first bottom plate 1, an anti-rebound structure 4 is installed at the upper end of the impact energy absorption structure 9, the telescopic connection structure 5 comprises a connection end 51, a support shaft 52, a rotating shaft outer ring 53, an extension connection frame 54 and a fixed shaft post 55, the locking structure 6 comprises a side frame 61, the extension frame 62, an inner groove 63, a first limit circular groove 64 and a second limit circular groove 65, an inner groove 63 is installed inside the side frame 61, an extension frame 62 is installed at one end of the side frame 61, a first limit circular groove 64 is installed on one side of the side frame 61, a second limit circular groove 65 is installed inside the first limit circular groove 64, and a positioning circular groove 65 is formed by combining the second limit circular groove 55.

During the use, move the one end of side frame 61 to being close to link 51 position, pass the inside that extends link 54 with extension grillage 62 of side frame 61 one end this moment, during the interlude, make the outer surface that fixed jack-post 55 laminating extension grillage 62 slide, and slide to the inside of the spacing circular slot 65 of second, form the orientation state for fixed jack-post 55, again will extend grillage 62 and turn to inner groovy 63 direction, make the inside fixed jack-post 55 of the spacing circular slot 65 of second laminate simultaneously in the inside of first spacing circular slot 64, cooperation through spacing circular slot 65 of second and first spacing circular slot 64, for fixed jack-post 55 provides the fixed action, and extend grillage 62 when turning over, can stimulate fixed jack-post 55, make inwards draw close to between first bottom plate 1 and the second bottom plate 2, stability when improving the installation, cooperation through flexible connection structure 5 and locking structure 6, for provide connection structure between first bottom plate 1 and the second bottom plate 2, make first bottom plate 1 and second bottom plate 2 can interconnect and install at the outside of pile and the convenient operation of pile size of the device, and the convenient operation range of pile can be changed according to the convenient operation of the operation of first bottom plate 2, and the convenient operation of the bridge, and the size of the operation device, and the operation of the ground pile, and the ground pile can be changed.

Example 2

In this embodiment, an improvement is made on the basis of embodiment 1, specifically, referring to fig. 1-3, a pin hole 66 is disposed at an upper end of the side frame 61, a matching insertion hole 67 is disposed at one end of the extension frame 62, the pin hole 66 and the matching insertion hole 67 are in a coaxial state, a supporting shaft sleeve 57 is mounted at one side of the connecting end 51, a supporting shaft rod 56 is slidably connected inside the supporting shaft sleeve 57, and a retraction spring 58 is mounted at outer sides of the supporting shaft sleeve 57 and the supporting shaft rod 56.

The fixing structure is lacked between the extension plate frame 62 and the side frame 61, so that the extension plate frame 62 is easy to separate from the inner part of the inner groove 63 when being used in the later period, which causes hidden danger, and meanwhile, the tightening structure is lacked between the first bottom plate 1 and the second bottom plate 2, which easily causes that the first bottom plate 1 and the second bottom plate 2 are loose integrally after being installed, thereby reducing the safety efficiency;

when extending grillage 62 and reseing to inside the inside groove 63, the bayonet lock passes pinhole 66 and card in the inside of cooperation jack 67, and for extending grillage 62 and providing fixed effect, extend grillage 62 simultaneously and when turning over the book, can stimulate fixed jack post 55, make and inwards draw close between first bottom plate 1 and the second bottom plate 2, and draw fixed jack post 55 and bracing axle 56, make shrink spring 58 form and drag the state, make and remain throughout between first bottom plate 1 and the second bottom plate 2 and tighten up the state, avoid first bottom plate 1 and the laminating of second bottom plate 2 when the foundation pile surface, it is comparatively loose, influence the result of use of device.

Example 3

The present embodiment is an improvement made on the basis of embodiment 1, and specifically, please refer to fig. 1 to 4, a wall surface attachment buffer structure 7 is installed at the lower end of the first bottom plate 1, the wall surface attachment buffer structure 7 includes a supporting inclined plate 71 and an attachment plate layer 72, and the lower end of the supporting inclined plate 71 is provided with the attachment plate layer 72.

The device is attached to the outer surface of the foundation pile, and after the device is impacted, part of acting force is transmitted to the outer side of the foundation pile, so that pits are formed on the outer surface of the foundation pile, and the body of the foundation pile is influenced by long-time environmental erosion;

install the surface at first bottom plate 1 through the symmetry that supports swash plate 71, the area of contact of first bottom plate 1 and second bottom plate 2 and device has been increased, make first bottom plate 1 when receiving the impact, impact through with the impact region disperses, disperse pressure uniform's dispersion among each supports swash plate 71, again disperse pressure by laminating sheet layer 72, make the effort that is used in the foundation pile surface sharply reduce, pressure is definite, area of force is big more, the pressure effect is little, thereby realize protection device's function, avoid the impact too concentrated, cause the damage of the surface of foundation pile.

Example 4

The embodiment is an improvement made on the basis of embodiment 3, and specifically, referring to fig. 1 to 4, a supporting rotating shaft 73 is installed at the upper end of the attachment plate layer 72, a buffering structure 8 is installed between the two supporting inclined plates 71, the buffering structure 8 includes a folding cover 81, a corrugated energy absorbing plate 82 and a supporting block 83, and the corrugated energy absorbing plate 82 is installed inside the folding cover 81.

The pressure is dispersed by the supporting sloping plate 71 alone, and the protection effect on the foundation pile is not obvious enough in this way;

through the effect of the supporting rotating shaft 73, the supporting sloping plate 71 can have the function of turning activity, and the two supporting sloping plates 71 are supported through the folding cover 81, when collision occurs, the generated acting force can drive the supporting sloping plate 71 to be folded inwards, and when the supporting sloping plate is folded, the generated acting force is transmitted to the inside of the corrugated energy-absorbing plate 82, and through the state of the corrugated energy-absorbing plate 82, the corrugated energy-absorbing plate 82 can be directly folded according to the body structure, so that the corrugated energy-absorbing plate 82 generates deformation after absorbing pressure, the pressure inside the supporting sloping plate 71 is reduced, the corrugated energy-absorbing plates 82 work simultaneously, most of collision acting force can be absorbed, through the matching of the wall surface attaching buffer structure 7 and the buffer structure 8, the device can be prevented from being impacted to generate acting force, and is transmitted to a foundation pile body, and the force-unloading function of the device is realized.

Example 5

In this embodiment, an improvement is made on the basis of embodiment 4, specifically, referring to fig. 1 to 4, the corrugated energy absorbing plate 82 is in a bent state, a supporting block 83 is disposed at a bent position in the corrugated energy absorbing plate 82, and the supporting block 83 is used for increasing the supporting pressure of the corrugated energy absorbing plate 82.

The support blocks 83 are arranged at the bent parts of the corrugated energy absorption plates 82, and the bending strength of the corrugated energy absorption plates 82 can be increased under the action of the support blocks 83, so that the pressure supporting strength of the corrugated energy absorption plates 82 is further increased, and the buffering effect of the corrugated energy absorption plates 82 is improved.

Example 6

The present embodiment is an improvement made on the basis of embodiment 5, and specifically, referring to fig. 1 to 8, the rebound-prevention structure 4 includes an air bag housing 41, a partition layer 42, an upper hook 43, a lower hook 44, and a latch block 45, the partition layer 42 is disposed inside the air bag housing 41, the upper hook 43 is disposed at the upper end of the partition layer 42, the lower hook 44 is disposed at the lower end of the partition layer 42, and the latch block 45 is disposed at both ends of the upper hook 43 and the lower hook 44.

When the anti-rebound structure 4 is impacted, the structural characteristics of the anti-rebound structure 4 can cause a rebound condition, and if the anti-rebound structure rebounds, secondary damage can be caused, so that potential safety hazards are large;

when gasbag shell 41 received the striking, can absorb kinetic energy, and inwards cave in rapidly, when sunken, the one end of lower trip 44 can not cross the one end of last trip 43, and the symmetry card is in inside between them, through the effect of bayonet block 45, form the chucking state between messenger's last trip 43 and the segmentation layer 42, cooperation through last trip 43 and lower trip 44, make first bottom plate 1 when taking place the striking, after gasbag shell 41 absorbs kinetic energy, can take place sunken, then can push down segmentation layer 42, through trip 44 reciprocal anchorage down, gasbag shell 41 after will sinking carries out mutual adhesion with segmentation layer 42, avoid kick-backing to cause secondary damage, thereby make the device possess kinetic energy absorption and prevent the rebound effect.

Example 7

The present embodiment is an improvement made on the basis of embodiment 6, and specifically, referring to fig. 1 to 8, an impact energy absorbing structure 9 includes an energy absorbing housing 91, a connecting rod 92, a piston 93, a circulation hole 94 and a lower cavity 95, the energy absorbing housing 91 is provided with the lower cavity 95 inside, the energy absorbing housing 91 is further provided with the connecting rod 92 inside, the lower end of the connecting rod 92 is provided with the piston 93, the piston 93 is provided with the circulation hole 94 inside, the lower cavity 95 is filled with oil, the energy absorbing housing 91 is divided into an upper space and a lower space by the piston 93, the upper space is the upper cavity 96, the lower space is the lower cavity 95, and the outer side of the piston 93 is provided with a sealing edge 914.

Kinetic energy is absorbed by the inner structure of the anti-rebound structure 4, so that the impact of large impact force of the device is difficult to buffer, and the buffer effect of the device is not obvious enough;

after the acting force is transmitted to the inside of the connecting rod 92, the connecting rod 92 is pressed downwards to drive the piston 93 to fall, when the piston 93 falls, oil in the lower cavity 95 can be extruded, the inside of the lower cavity 95 is in a high-pressure state at the moment, the inside of the upper cavity 96 is pressed, at the moment, the oil can flow into the inside of the upper cavity 96 along the circulation hole 94, the acting force of the connecting rod 92 pressing downwards is converted into the flow force of the oil in the circulation hole 94, and the flow force flows into the inside of the upper cavity 96, and a buffering effect is provided for the device.

Example 8

The present embodiment is an improvement made on the basis of embodiment 7, specifically, referring to fig. 1 to 8, a liquid inlet pipe groove 99 is provided inside the piston 93, and a liquid outlet pipe 911 is provided at one end of the liquid inlet pipe groove 99.

When the piston 93 falls, the oil in the lower cavity 95 is transmitted to the liquid outlet tubule 911 from the inside of the liquid inlet pipe groove 99, and the diameter of the liquid inlet pipe groove 99 is larger than the liquid outlet tubule 911, so that the oil flows through the liquid outlet tubule 911, the flow of the oil is reduced, the falling speed of the piston 93 is reduced after the flow of the oil is reduced, and the buffer function of the falling pressure of the piston 93 is realized.

Example 9

This embodiment is an improvement made on the basis of embodiment 8, specifically, referring to fig. 1 to 8, an annular continuous groove pipe 910 is arranged inside the liquid inlet pipe groove 99, and the annular continuous groove pipe 910 is used for increasing the buffer pressure.

The flowing time of the oil liquid in the piston 93 is increased, meanwhile, the flow of the oil liquid entering the liquid inlet pipe groove 99 is reduced, and the downward pressing acting force of the piston 93 is greatly relieved while the flow is reduced.

Example 10

The present embodiment is an improvement made on the basis of embodiment 9, and specifically, referring to fig. 1 to 8, a ball valve 97 is installed inside a flow hole 94, a support spring 98 is installed on one side of the ball valve 97, a cavity is provided between two sealing edges 914, the cavity is a partition groove 912, and a diversion groove 913 is provided on one side of the flow hole 94.

When the connecting rod 92 falls, the piston 93 is driven to fall, so that the piston 93 extrudes the space inside the lower cavity 95, the pressure inside the lower cavity 95 is increased, meanwhile, the inside of the upper cavity 96 forms a negative pressure state, so that oil can flow into the upper cavity 96 through the inside of the circulation hole 94, the larger the flow rate of the oil inside the circulation hole 94 is, the smaller the resistance generated when the piston 93 falls is, but the smaller the kinetic energy which can be absorbed simultaneously is, the flow flowing resistance inside the circulation hole 94 is increased through the ball valve 97 and the supporting spring 98, the absorption force acting force of the piston 93 can be further improved, the oil can flow into the inside of the liquid inlet pipe groove 99 simultaneously, then flow into the inside of the annular continuous groove pipe 910, finally, the oil is discharged into the inside of the upper cavity 96 through the liquid outlet thin pipe 911, the diameter of the liquid outlet thin pipe 911 is larger than that of the liquid inlet pipe groove 99, when the oil passes through, the flow rate is reduced, and meanwhile, the impact absorption force can be increased for the piston 93, meanwhile, the time of oil in the piston 93 can be increased through the action of the annular continuous groove pipe 910, the flow speed of the oil can be reduced, meanwhile, part of the oil can enter the partition groove 912 through the inside of the diversion groove 913, the tightness between the sealing edge 914 and the inner wall of the energy absorption shell 91 is increased through the penetration of the oil in the partition groove 912, the sealing degree of the sealing edge 914 can be further increased through the mechanism, the falling potential energy of the piston 93 is converted into the flowing power of the oil through the cooperation of the internal structure of the impact energy absorption structure 9, the flow of the oil in the liquid inlet pipe groove 99 through the circulation hole 94 is reduced, the falling speed of the piston 93 is reduced, the larger the falling acting force of the piston 93 is, the larger the pressure is caused on the oil in the lower cavity 95, and the oil flows through the circulation hole 94 and the liquid inlet pipe groove 99, the device can be quicker, so that the absorption mode of the acting force is changed, the falling acting force can be completely buffered and absorbed, the falling kinetic energy of the device is ingeniously relieved, and the larger the falling kinetic energy is, the larger the absorbed kinetic energy is, and the device can adapt to the absorption of the kinetic energy of the larger acting force.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a public road bridge roof beam buffer stop, includes second bottom plate (2) of first bottom plate (1) and first bottom plate (1) one side, its characterized in that: the utility model discloses a safety guard for vehicle wheels, including first bottom plate (1), flexible connection structure (5) are installed to one side of first bottom plate (1), locking structure (6) are installed to the opposite side of first bottom plate (1), first bottom plate (1) is unanimous with second bottom plate (2) structure, striking energy-absorbing structure (9) are installed to the upper end of first bottom plate (1), striking energy-absorbing structure (9) upper end is installed and is prevented kick-back structure (4), flexible connection structure (5) are including link (51), back shaft (52), pivot outer loop (53), extend link (54) and fixed jack prop (55), the inboard of link (51) is equipped with back shaft (52), pivot outer loop (53) are installed in the outside of back shaft (52), one side of pivot outer loop (53) is equipped with extends link (54), the one end that extends link (54) is equipped with fixed jack prop (55), locking structure (6) are including side frame (61), extend link (62), inside groove (63), first spacing circular groove (64) and second spacing circular groove (65), the inside side frame (61) is equipped with first spacing circular groove (61), the side frame (61), one side of extension grillage (62) is equipped with spacing circular slot of second (65), first spacing circular slot (64) and the combination of spacing circular slot of second (65) form the location circular slot, fixed jack-post (55) are used for installing in the location circular slot.

2. The highway bridge anti-collision device according to claim 1, wherein: the upper end of side frame (61) is equipped with pinhole (66), the one end that extends grillage (62) is equipped with cooperation jack (67), pinhole (66) are coaxial state with cooperation jack (67), supporting shaft sleeve (57) is installed to one side of link (51), the inside sliding connection of supporting shaft sleeve (57) has supporting shaft pole (56), shrink spring (58) are installed in the outside of supporting shaft sleeve (57) and supporting shaft pole (56).

3. The highway bridge anti-collision device according to claim 1, wherein: wall laminating buffer structure (7) are installed to the lower extreme of first bottom plate (1), wall laminating buffer structure (7) are including supporting swash plate (71) and laminating sheet layer (72), the lower extreme that supports swash plate (71) is equipped with laminating sheet layer (72).

4. The highway bridge anti-collision device according to claim 3, wherein: support pivot (73) are installed to the upper end of laminating sheet layer (72), two support and install buffer structure (8) between swash plate (71), buffer structure (8) are including folding cover (81), ripple energy-absorbing plate (82) and supporting shoe (83), the internally mounted of folding cover (81) has ripple energy-absorbing plate (82).

5. The highway bridge anti-collision device according to claim 4, wherein: the corrugated energy absorption plate (82) is in a bent state, a supporting block (83) is arranged at a bent position in the corrugated energy absorption plate (82), and the supporting block (83) is used for increasing the supporting pressure of the corrugated energy absorption plate (82).

6. The road bridge roof beam buffer stop of claim 5, wherein: prevent rebounding structure (4) include air bag shell (41), cut apart layer (42), go up trip (43), trip (44) and bayonet lock piece (45) down, the inside of air bag shell (41) is equipped with cuts apart layer (42), the upper end of cutting apart layer (42) is installed trip (43), lower trip (44) are installed to the lower extreme of cutting apart layer (42), it all is equipped with bayonet lock piece (45) with the one end of trip (44) down to go up trip (43).

7. The highway bridge anti-collision device according to claim 6, wherein: striking energy-absorbing structure (9) are including energy-absorbing casing (91), connecting rod (92), piston (93), opening (94) and lower cavity (95), the inside of energy-absorbing casing (91) is equipped with down cavity (95), connecting rod (92) are still installed to the inside of energy-absorbing casing (91), piston (93) are installed to the lower extreme of connecting rod (92), the inside of piston (93) is equipped with opening (94), cavity (95) intussuseption is filled with fluid down, upper space and lower floor's space are cut apart into through piston (93) to the inside of energy-absorbing casing (91), upper space is epicoele cavity (96), lower floor's space is cavity (95) down, sealed limit (914) are installed in the outside of piston (93).

8. The highway bridge anti-collision device according to claim 7, wherein: the inside of piston (93) is equipped with feed liquor pipe groove (99), the one end of feed liquor pipe groove (99) is equipped with out liquid tubule (911).

9. The highway bridge anti-collision device according to claim 8, wherein: the liquid inlet pipe groove (99) is internally provided with an annular continuous groove pipe (910), and the annular continuous groove pipe (910) is used for increasing buffer pressure.

10. The highway bridge anti-collision device according to claim 9, wherein: the ball valve (97) is installed in the flow hole (94), the supporting spring (98) is installed on one side of the ball valve (97), a cavity is arranged between the two sealing edges (914), the cavity is a spacing groove (912), and a flow dividing groove (913) is formed in one side of the flow hole (94).