Bridge safety guardrail

Abstract

The utility model discloses a bridge safety guardrail which comprises a fixed beam. The guardrail assembly is arranged on the inner side of the fixed beam, the guardrail assembly comprises a mounting beam and an anti-collision part, the mounting beam is parallel to the fixed beam, the anti-collision part is rotationally mounted on the side, away from the fixed beam, of the mounting beam, and a damping part is arranged at the joint of the anti-collision part and the mounting beam; the guardrail assembly is connected with the fixing beam through the buffering assembly, the buffering assembly comprises at least one set of second buffering parts, and the at least one set of second buffering parts comprises a plurality of elastic parts which are overlapped with one another. The anti-collision part is impacted to rotate, the vehicle can be effectively prevented from flying out of the bridge, the damping part generates resistance to rotation of the anti-collision part, and therefore external braking force can be provided for the impacted vehicle, and the vehicle can be decelerated faster. Through deformation of the elastic part, radial impact is buffered, the kinetic energy of an automobile is reduced, and the damage probability of the guardrail is reduced. The buffering effect of the guardrail can be improved through the overlapped use of the multiple elastic parts.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge safety facilities, in particular to a bridge safety guardrail. Background Art

[0002] Bridge guardrails refer to the guardrails installed on the bridge. Their purpose is to prevent out-of-control vehicles from going over the bridge and pedestrians from falling off the bridge. They have the function of improving bridge safety and beautifying bridge construction.

[0003] The utility model with publication number CN213358320U in the prior art discloses a municipal bridge anti-collision guardrail, whose structure includes a crossbeam, an upper support rod, a lower support rod, a rotating cylinder and a quick disassembly device. The municipal bridge anti-collision guardrail described in the utility model is achieved by installing a quick disassembly device on the anti-collision barrel of the municipal bridge anti-collision guardrail, removing the fixing device on the upper end of the anti-collision barrel, then unscrewing the nut downward, lifting the upper connecting port upward, and the lower connecting port is higher than the lower support rod. The entire rotating cylinder is removed, and then a new rotating cylinder is installed. A single rotating cylinder can be quickly disassembled and installed. A clockwork spring is installed in the center of the anti-collision barrel of the municipal bridge anti-collision guardrail. The more circles the anti-collision barrel rotates, the more the clockwork spring deforms, and the greater the resistance generated, which can provide an external braking force to the impacting vehicle to decelerate the vehicle faster.

[0004] In the above-mentioned prior art, although the clockwork spring will provide resistance after contacting the side of the vehicle, the above-mentioned prior art does not have the radial buffering effect of the crash bucket. If the vehicle collides with the guardrail head-on, the clockwork spring will not be able to function. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a bridge safety guardrail, comprising

[0006] Fixed beam;

[0007] A guardrail assembly, the guardrail assembly is arranged inside the above-mentioned fixed beam, the guardrail assembly includes a mounting beam and an anti-collision portion, the mounting beam is arranged parallel to the above-mentioned fixed beam, the anti-collision portion is rotatably mounted on a side of the above-mentioned mounting beam away from the above-mentioned fixed beam, the anti-collision portion is equidistantly arranged along the length direction of the above-mentioned mounting beam, and a damping portion is provided at the connection between the anti-collision portion and the mounting beam; and

[0008] A buffer assembly is used to connect the guardrail assembly with the fixed beam. The buffer assembly includes at least one group of second buffer parts, and at least one group of the second buffer parts includes a plurality of elastic parts overlapping each other.

[0009] Furthermore, the elastic part includes two groups of elastic plates, the elastic plates are in a bulge shape as a whole, and the two groups of elastic plates are connected to each other at the sides away from the bulge to form an elastic part with a buffer cavity inside.

[0010] After the utility model is hit by a vehicle, the anti-collision part is rotated by the impact, guiding the car to adjust its direction so that it is in the correct lane, which can effectively prevent the vehicle from flying off the bridge, greatly reduce the degree of harm caused by the accident, and reduce casualties. At the same time, the damping part will generate resistance to the rotation of the anti-collision part, thereby providing an external braking force to the impacting vehicle to decelerate the vehicle faster. The radial impact acting on the anti-collision part (radial impact of a frontal impact or radial impact of a lateral impact) will cause the elastic part to deform, thereby absorbing a certain amount of impact energy, thereby achieving buffering of the radial impact, reducing the kinetic energy of the car, and reducing the probability of damage to the guardrail. The overlapping use of multiple elastic parts can increase the kinetic energy absorption limit and improve the buffering effect of the guardrail.

[0011] In order to improve the buffering effect of the guardrail, preferably, the fixed beam includes two groups of beam plates, the two groups of beam plates are arranged in parallel, and a plurality of first buffer parts made of elastic material are arranged between the two groups of beam plates, and the first buffer parts are angle plates, rectangular plates, corrugated plates, hollow ellipsoids and hollow double-sided bulge plates. When the guardrail is impacted, the first buffer part will deform, and the kinetic energy of the impact will be absorbed by the deformation of the first buffer part, thereby buffering the vehicle body, reducing the kinetic energy of the vehicle, reducing the probability of damage to the guardrail, and preventing the vehicle from flying off the bridge.

[0012] In order to facilitate the connection between adjacent guardrails, preferably, a first connecting portion is provided at one end of the beam plate and a second connecting portion is provided at the other end, and the first connecting portion can be cooperatively connected with the second connecting portion.

[0013] Furthermore, the first connecting portion is a rectangular frame, and a first connecting hole is fully opened on a side of the rectangular frame;

[0014] The second connecting part is a rectangular block, which can be accommodated in the above-mentioned rectangular frame. A second connecting hole is opened on the side of the above-mentioned rectangular block corresponding to the above-mentioned first connecting hole. The connection between the two adjacent groups of the safety guardrails is achieved by passing the connecting bolt through the first connecting hole and the second connecting hole and then tightening it.

[0015] By inserting the rectangular blocks of one group of guardrails into the rectangular frames of another group of guardrails, and passing the connecting bolts through the corresponding first connecting holes and second connecting holes and tightening them, quick connection and fixation between two adjacent groups of guardrails can be achieved.

[0016] In order to facilitate the removal of the ground piles, preferably, the safety guardrail also includes ground piles, and the ground piles include

[0017] A base, which is buried in the concrete pavement; and

[0018] A connecting pile, one end of which is wrapped in the base and fixed to the base, and the other end of which is connected to the fixed beam.

[0019] Furthermore, the base includes a fixing seat, the fixing seat has a containing cavity, and a plurality of first buckling parts are provided on the inner wall of the containing cavity;

[0020] The connecting pile comprises a pile body, and a second buckle part is provided on the side of the pile body corresponding to the first buckle part, and the connection between the connecting pile and the base is realized by buckling between the first buckle part and the second buckle part.

[0021] Furthermore, the first buckling portion is an L-shaped buckling rod, and the middle portion of the buckling rod is pivotally connected to the inner wall of the fixing seat;

[0022] The second buckling portion is a buckling block, which is arranged corresponding to the buckling rod and is fixed to the outer side wall of the pile body;

[0023] A movable groove is provided on the outer side of the pile body side wall corresponding to the above-mentioned buckle block, and the movable groove extends along the axial direction of the pile body;

[0024] The connecting pile also includes

[0025] A rotating rod, which is integrally arranged in the pile body and can rotate along its own circumference;

[0026] The movable blocks are provided with two groups, and the movable blocks are driven by the rotating rod to move linearly along the axis direction of the rotating rod, and the movement directions of the two groups of movable blocks are opposite. The first connecting rod is provided on the circumference of the movable block and passes through the limiting groove and extends to the outside of the pile body;

[0027] The second connecting rod is provided with two groups, each group has several second connecting rods, and the several second connecting rods are arranged corresponding to the above-mentioned first connecting rods. One end of the connecting rod is pivotally connected to the above-mentioned first connecting rod, and the two groups of the connecting rods maintain relative rotation.

[0028] Further, one group of the movable blocks is threadedly connected to the rotating rod;

[0029] One end of the rotating rod close to the movable block threadedly connected to it is provided with a fixing plate fixedly connected to the pile body, and a pulley is installed on the end face of the fixing plate close to the movable block. One end of the flexible belt is fixedly connected to one group of movable blocks, and the other end passes around the pulley and is fixedly connected to another group of movable blocks.

[0030] By rotating the rotating rod, the two groups of movable blocks can move toward each other, thereby driving the connecting ends of the two groups of the second connecting rods to move outward, so as to push the locking rod to move, so that the top end of the locking rod locks the locking block, thereby achieving the fixation of the pile body and the base. When disassembling, it is only necessary to rotate the rotating rod in the opposite direction, and the locking rod will be reset under the action of gravity, and the locking rod will leave the locking block to loosen the pile body, which is convenient for the installation and disassembly of the pile body.

[0031] In order to limit the rotation angle of the second connecting rod, preferably, the first connecting rod and the second connecting rod are provided with limit grooves on their sides, and the two ends of the limit rod are movably arranged in the limit grooves. When the second connecting rod rotates, the end of the limit rod will also rotate in the limit groove, and move linearly along the limit groove. When it moves to the end of the limit groove, the end of the limit rod and the end of the limit groove form an interface or a mechanical stopper to limit the rotation of the second connecting rod.

[0032] The utility model has the following advantages:

[0033] After the utility model is hit by a vehicle, the anti-collision part is rotated by the impact, guiding the car to adjust its direction so that it is in the correct lane, which can effectively prevent the vehicle from flying off the bridge, greatly reduce the degree of harm caused by the accident, and reduce casualties. At the same time, the damping part will generate resistance to the rotation of the anti-collision part, thereby providing an external braking force to the impacting vehicle to decelerate the vehicle faster. The radial impact acting on the anti-collision part will cause the elastic part to deform, thereby absorbing a certain impact energy, thereby achieving buffering of the radial impact, reducing the kinetic energy of the car, and reducing the probability of damage to the guardrail. The overlapping use of multiple elastic parts can increase the kinetic energy absorption limit and improve the buffering effect of the guardrail.

[0034] When the guardrail is impacted, the first buffer part will be deformed, and the kinetic energy of the impact will be absorbed through the deformation of the first buffer part, thereby cushioning the vehicle body, reducing the kinetic energy of the vehicle, reducing the chance of damage to the guardrail, and preventing the vehicle from flying off the bridge.

[0035] By inserting the rectangular blocks of one group of guardrails into the rectangular frames of another group of guardrails, and passing the connecting bolts through the corresponding first connecting holes and second connecting holes and tightening them, quick connection and fixation between two adjacent groups of guardrails can be achieved.

[0036] By rotating the rotating rod, the two groups of movable blocks can move toward each other, thereby driving the connecting ends of the two groups of the second connecting rods to move outward, so as to push the locking rod to move, so that the top end of the locking rod locks the locking block, thereby achieving the fixation of the pile body and the base. When disassembling, it is only necessary to rotate the rotating rod in the opposite direction, and the locking rod will be reset under the action of gravity, and the locking rod will leave the locking block to loosen the pile body, which is convenient for the installation and disassembly of the pile body.

[0037] When the second connecting rod rotates, the end of the limiting rod will also rotate in the limiting groove and move linearly along the limiting groove. When it moves to the end of the limiting groove, the end of the limiting rod and the end of the limiting groove form an interface or a mechanical stop to limit the rotation of the second connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural diagram of the safety guardrail;

[0039] Figure 2 yes Figure 1 A first structural schematic diagram of a guardrail assembly in the safety guardrail shown;

[0040] Figure 3 yes Figure 2 A second structural schematic diagram of the guardrail assembly shown;

[0041] Figure 4 yes Figure 1 The schematic diagram of the structure of the buffer component in the safety guardrail shown;

[0042] Figure 5 yes Figure 1 The structural schematic diagram of the fixed crossbeam in the safety guardrail shown;

[0043] Figure 6 yes Figure 5 A second structural schematic diagram of the first buffer portion in the fixed beam shown;

[0044] Figure 7 yes Figure 6 A third structural schematic diagram of the first buffer portion shown;

[0045] Figure 8 yes Figure 6 A fourth structural schematic diagram of the first buffer portion shown;

[0046] Fig. 9 yes Figure 6 A fifth structural schematic diagram of the first buffer portion shown;

[0047] Fig.10 yes Figure 1 The schematic diagram of the structure of the ground pile in the safety guardrail shown;

[0048] Fig.11 yes Fig.10 The structural diagram of the foundation of the pile shown in FIG.

[0049] Fig.12 yes Fig.11 A schematic diagram of the internal structure of the base shown;

[0050] Fig.13 yes Fig.10 The schematic diagram of the structure of the connecting pile in the pile shown;

[0051] Fig.14 yes Fig.13 A schematic diagram of the first part of the structure of the connecting pile shown;

[0052] Fig.15 yes Fig.14 An enlarged schematic diagram of the local structure of the connecting pile shown;

[0053] Fig.16 yes Fig.14 A schematic diagram of the second part of the structure of the connecting pile is shown. DETAILED DESCRIPTION

[0054] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0055] In this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises", or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0056] As described in the background art, although the clockwork spring provides resistance after contacting the side of the vehicle, the above-mentioned prior art does not have the radial buffering effect of the crash bucket. If the vehicle collides with the guardrail head-on, the clockwork spring will not be able to function.

[0057] Embodiment 1:

[0058] Therefore, in order to solve the technical problems existing in the prior art, this embodiment provides a bridge safety guardrail, such as Figure 1 As shown, the safety guardrail in this embodiment includes

[0059] Fixed beam 200;

[0060] The guardrail assembly 300 is arranged inside the above-mentioned fixed beam 200. Figure 2As shown, the guardrail assembly 300 includes a mounting beam 302 and an anti-collision portion 303, wherein the mounting beam 302 is arranged parallel to the above-mentioned fixed beam 200, and the anti-collision portion 303 is rotatably mounted on a side of the above-mentioned mounting beam 302 away from the above-mentioned fixed beam 200, and the anti-collision portion 303 is equidistantly arranged along the length direction of the above-mentioned mounting beam 302, and a damping portion is provided at the connection between the anti-collision portion 303 and the mounting beam 302; and

[0061] The buffer assembly 400 connects the guardrail assembly 300 and the fixed beam 200. Figure 4 As shown, the buffer assembly 400 includes at least one group of second buffer parts, and at least one group of the second buffer parts includes a plurality of elastic parts 403 overlapping each other.

[0062] The elastic part includes two groups of elastic plates, the elastic plates are in a bulge shape as a whole, and the two groups of elastic plates are connected to each other on the side away from the bulge to form an elastic part with a buffer cavity inside. Each group of the second buffer parts also includes a connecting rod, and the elastic parts 403 of each group of the second buffer parts are connected in series through the connecting rod.

[0063] The above-mentioned buffer assembly 400 also includes

[0064] A first connection part 401, the first connection part 401 is fixed to the above-mentioned fixed beam, including but not limited to welding, fusion, riveting, bolt connection, etc., and the above-mentioned connecting rod is slidably connected to the first connection part; and

[0065] The second connection part 402 is fixed to the mounting beam 200 of the guardrail assembly 300, including but not limited to welding, fusion, riveting, bolt connection, etc.

[0066] When hit by a vehicle, the anti-collision part 303 rotates due to the impact, guiding the car to adjust its direction so that it is in the correct lane, which can effectively prevent the vehicle from flying off the bridge, greatly reduce the degree of harm caused by the accident, and reduce casualties. At the same time, the damping part will generate resistance to the rotation of the anti-collision part, thereby providing an external braking force to the impacting vehicle to decelerate the vehicle faster. The radial impact acting on the anti-collision part (radial impact of a frontal impact or radial impact of a lateral impact) will cause the elastic part 403 to deform, thereby absorbing a certain amount of impact energy, thereby achieving buffering of the radial impact, reducing the kinetic energy of the car, and reducing the probability of damage to the guardrail. The overlapping use of multiple elastic parts can increase the kinetic energy absorption limit and improve the buffering effect of the guardrail.

[0067] In addition to the bulging elastic plate described in this embodiment, the elastic part may also use a cushioning air cushion. By squeezing a plurality of stacked cushioning air cushions, the cushioning air cushions absorb the impact kinetic energy, thereby reducing the kinetic energy of the car and the chance of damage to the guardrail.

[0068] In addition, the anti-collision portion 303 described in this embodiment can be as follows Figure 2 As shown in the anti-collision roller, each group of anti-collision parts 303 includes at least one anti-collision roller, and multiple groups of anti-collision rollers are arranged in high and low intervals. Figure 3 Anti-collision roller shown.

[0069] In order to improve the buffering effect of the guardrail, Figure 5 As shown, the fixed beam 200 includes two groups of beam plates 201, and the two groups of beam plates 201 are arranged in parallel. A plurality of first buffer parts made of elastic material are arranged between the two groups of beam plates. When the guardrail is impacted, the first buffer part will be deformed, and the kinetic energy of the impact will be absorbed by the deformation of the first buffer part, thereby buffering the vehicle body, reducing the kinetic energy of the vehicle, reducing the probability of damage to the guardrail, and preventing the vehicle from flying off the bridge.

[0070] like Figure 5 As shown, the first buffer portion in this embodiment can be an angle plate 202A, which is formed by arranging multiple groups of angle plates in the same direction and fixing them between two groups of beam plates, and connecting the multiple groups of angle plates end to end.

[0071] like Figure 6 As shown, the first buffer portion in this embodiment can be a rectangular plate 202B, which is formed by multiple groups of rectangular plates that are equidistantly arranged along the length direction of the beam and plate and are vertically fixedly connected to the beam and plate to form the first buffer portion.

[0072] In addition, the first buffer portion in this embodiment can also be as follows Figure 7 The wave plate 202C shown, Figure 8 The hollow ellipsoid 202D shown or Fig. 9 The hollow double-sided drum plate 202D is shown.

[0073] In order to facilitate the connection between adjacent guardrails, in this embodiment, a first connecting portion 203 is provided at one end of the beam 201 and a second connecting portion 204 is provided at the other end. The first connecting portion 203 can be connected with the second connecting portion 204 in a coordinated manner.

[0074] The first connection portion 203 is a rectangular frame, and a first connection hole is fully opened on the side of the rectangular frame;

[0075] The second connecting part 204 is a rectangular block, which can be accommodated in the above-mentioned rectangular frame. A second connecting hole is opened on the side of the above-mentioned rectangular block corresponding to the above-mentioned first connecting hole. The connection between the two adjacent groups of the safety guardrails is achieved by passing the connecting bolt through the first connecting hole and the second connecting hole and then tightening.

[0076] By inserting the rectangular blocks of one group of guardrails into the rectangular frames of another group of guardrails, and passing the connecting bolts through the corresponding first connecting holes and second connecting holes and tightening them, quick connection and fixation between two adjacent groups of guardrails can be achieved.

[0077] Embodiment 2:

[0078] In order to facilitate the disassembly and installation of the guardrail, this embodiment proposes improvements based on embodiment 1, such as Figure 1 As shown, the safety guardrail in this embodiment also includes a ground pile 100, such as Fig.10 As shown, the ground pile 100 includes

[0079] A base, which is buried in the concrete pavement; and

[0080] A connecting pile, one end of which is wrapped in the base and fixed to the base, and the other end of which is connected to the fixed beam.

[0081] like Fig.11 , 12 As shown, the above-mentioned base includes a fixing base 101, and the fixing base 101 has a receiving cavity, and a plurality of first buckling parts are provided on the inner wall of the receiving cavity;

[0082] like Fig.13 As shown, the connecting pile includes a pile body 103, and a second buckle portion is provided on the side of the pile body 103 corresponding to the first buckle portion. The connection between the connecting pile and the base is achieved by buckling between the first buckle portion and the second buckle portion.

[0083] like Fig.12 As shown, the first buckling portion is an L-shaped buckling rod 105, and the middle portion of the buckling rod 105 is pivotally connected to the inner wall of the fixing seat;

[0084] like Fig.13 As shown, the second buckling portion is a buckling block 117, which is arranged corresponding to the buckling rod 105 and is fixed to the outer side wall of the pile body 103;

[0085] A movable groove is provided on the outer side of the pile body side wall corresponding to the buckle block 117, and the movable groove extends along the axial direction of the pile body;

[0086] like Fig.14 As shown, the connecting pile also includes

[0087] A rotating rod 106, the rotating rod 106 is integrally arranged in the pile body 103, the rotating rod 106 can rotate along its own circumference, and a hexagonal end can be provided on the top of the rotating rod 106, and the staff can rotate the rotating rod 106 by matching the hexagonal wrench with the hexagonal end;

[0088] The movable blocks 108 are provided with two groups, and the movable blocks 108 are driven by the rotating rod to move linearly along the axis direction of the rotating rod 106, and the movement directions of the two groups of movable blocks 108 are opposite. The first connecting rod 109 is provided on the peripheral surface of the movable block, passing through the limiting groove and extending to the outside of the pile body;

[0089] The second connecting rod 110 is provided with two groups, each group has several second connecting rods, and the several second connecting rods 110 are provided corresponding to the above-mentioned first connecting rod 109. One end of the connecting rod 110 is pivotally connected to the above-mentioned first connecting rod 109, and the two groups of the connecting rods maintain relative rotation.

[0090] like Fig.14 , 16 As shown, one set of the movable blocks 108 is threadedly connected to the rotating rod 106;

[0091] One end of the rotating rod 106 close to the movable block threadedly connected thereto is provided with a fixed plate 107 fixedly connected to the pile body 103, and a pulley 116 is installed on the end surface of the fixed plate 107 close to the movable block. One end of the flexible belt 114 is fixedly connected to one group of movable blocks, and the other end passes around the pulley 116 and is fixedly connected to another group of movable blocks.

[0092] By rotating the rotating rod, the two groups of movable blocks can move toward each other, thereby driving the connecting ends of the two groups of the second connecting rods to move outward, so as to push the locking rod to move, so that the top end of the locking rod locks the locking block, thereby achieving the fixation of the pile body and the base. When disassembling, it is only necessary to rotate the rotating rod in the opposite direction, and the locking rod will be reset under the action of gravity, and the locking rod will leave the locking block to loosen the pile body, which is convenient for the installation and disassembly of the pile body.

[0093] Of course, in addition to the above-mentioned method to realize linear movement of the two groups of movable blocks in opposite directions, an external thread can also be provided on the rotating rod, and internal threaded holes with opposite thread rotation directions can be opened in the two groups of movable blocks respectively. Through the cooperation of the external thread and the threaded hole, when the rotating rod is rotated, the internal threads of the threaded holes of the two groups of movable blocks rotate in opposite directions, and thus the movement directions of the two groups of movable blocks are opposite, thereby stretching the second connecting rod to rotate inward, or squeezing the second connecting rod to rotate outward.

[0094] In addition, a first snap-in block and a second snap-in block can be directly set on the inner wall of the fixing seat and the outer wall of the pile body respectively, and the second snap-in block on the outer wall of the pile body is inserted into the gap between the first snap-in block in the fixing seat, and the pile body is rotated so that the second snap-in block is rotated to the bottom of the first snap-in block, thereby realizing the connection between the pile body and the fixing seat.

[0095] In addition, in order to prevent rainwater or snow water from entering the fixed seat and the cargo pile body in rainy and snowy weather, thereby causing corrosion to the movable structure in the fixed seat and the movable structure in the pile body, thereby affecting their use, the present embodiment has a fixed seat cover 102 removably fixed on the fixed seat, and the fixed seat cover 102 forms a seal with the upper surface of the fixed seat and the side of the pile body. The fixed seat cover can be directly fixed at a preset height of the pile body, and the positioning of the second connecting rod is achieved by connecting the fixed seat cover with the fixed seat. A pile body cover 104 is removably fixed on the top of the pile body, and the pile body cover 104 forms a seal with the top of the pile body.

[0096] In order to facilitate the connection between the fixed beam and the pile, Figure 5 As shown, a connecting sleeve 205 is provided on the lower surface of the beam plate, and the connecting sleeve 205 can be wrapped around the top of the pile body. A fixing bolt threadedly connected to the connecting sleeve can pass through the side wall of the connecting sleeve 205, and the tail end abuts against the outside of the pile body to achieve connection between the pile body and the fixed crossbeam. The connecting sleeve is also threadedly connected to the top of the pile body, that is, the connecting sleeve can rotate along its own circumference, a threaded hole is opened inside it, and an external thread matching the threaded hole is provided on the top of the pile body. The connection and fixation of the two can be achieved by matching the connecting sleeve with the pile body.

[0097] In order to limit the rotation angle of the second link, Fig.15 As shown, the first connecting rod and the second connecting rod are both provided with a limiting groove 111 on their sides, and the two ends of the limiting rod 112 are movably arranged in the limiting groove. When the second connecting rod rotates, the end of the limiting rod 112 also rotates in the limiting groove and moves linearly along the limiting groove. When the end of the limiting groove is reached, the end of the limiting rod forms an interface or a mechanical stopper with the end of the limiting groove to limit the rotation of the second connecting rod.

[0098] In order to reduce the friction between the movable block and the inner wall of the pile, Fig.16 As shown, a guide wheel (115) is also installed on the outer side of the movable block.

[0099] During construction, the fixing seat is pre-buried in the concrete so that its upper surface is higher than or equal to the upper surface of the concrete. Then, the second connecting rod is inserted into the fixing seat corresponding to the buckling rod, and the rotating rod is twisted to make it rotate along its own circumference, driving the movable block to move linearly, thereby driving the connecting ends of the two groups of the second connecting rods to move outward to push the buckling rod to move so that its top end buckles the buckling block to achieve the fixation of the pile body and the base. Then, the fixing seat cover is passed through the pile body, slid down to the upper surface of the fixing seat, and bolts are installed to fix it. The pile body cover is installed to the top of the pile body and fixed. Then, the connecting sleeve of the fixed beam is matched with the pile body and fixed. The buffer assembly is welded to the side of the above-mentioned fixed beam, and finally the guardrail assembly is welded to the above-mentioned buffer assembly.

[0100] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bridge safety guardrail, characterized in that: include Fixed beam; A guardrail assembly, the guardrail assembly is arranged inside the above-mentioned fixed beam, the guardrail assembly includes a mounting beam and an anti-collision portion, the mounting beam is arranged parallel to the above-mentioned fixed beam, the anti-collision portion is rotatably mounted on a side of the above-mentioned mounting beam away from the above-mentioned fixed beam, the anti-collision portion is equidistantly arranged along the length direction of the above-mentioned mounting beam, and a damping portion is provided at the connection between the anti-collision portion and the mounting beam; and A buffer assembly is used to connect the guardrail assembly with the fixed beam. The buffer assembly includes at least one group of second buffer parts, and at least one group of the second buffer parts includes a plurality of elastic parts overlapping each other.

2. A bridge safety guardrail according to claim 1, characterized in that: The elastic part comprises two groups of elastic plates, which are in a bulge shape as a whole. The two groups of elastic plates are connected to each other at the sides away from the bulge to form an elastic part with a buffer cavity inside.

3. A bridge safety guardrail according to claim 1 or 2, characterized in that: The fixed beam includes two groups of beam plates, which are arranged in parallel. A plurality of first buffer parts made of elastic material are arranged between the two groups of beam plates. The first buffer parts are angle plates, rectangular plates, corrugated plates, hollow ellipsoids or hollow double-sided bulging plates.

4. A bridge safety guardrail according to claim 3, characterized in that: A first connection portion is provided at one end of the beam plate, and a second connection portion is provided at the other end, and the first connection portion can be matched and connected with the second connection portion.

5. A bridge safety guardrail according to claim 4, characterized in that: The first connecting portion is a rectangular frame, and a first connecting hole is fully opened on the side of the rectangular frame; The second connecting part is a rectangular block, which can be accommodated in the above-mentioned rectangular frame. A second connecting hole is opened on the side of the above-mentioned rectangular block corresponding to the above-mentioned first connecting hole. The connection between the two adjacent groups of safety guardrails is achieved by passing the connecting bolt through the first connecting hole and the second connecting hole and then tightening it.

6. A bridge safety guardrail according to claim 3, characterized in that: The safety guardrail also includes ground piles, the ground piles include A base, which is buried in the concrete pavement; and A connecting pile, one end of which is wrapped in the base and fixed to the base, and the other end of which is connected to the fixed beam.

7. A bridge safety guardrail according to claim 6, characterized in that: The base includes a fixed seat, the fixed seat has a receiving cavity, and a plurality of first buckling parts are provided on the inner wall of the receiving cavity; The connecting pile comprises a pile body, and a second buckle part is provided on the side of the pile body corresponding to the first buckle part, and the connection between the connecting pile and the base is realized by buckling between the first buckle part and the second buckle part.

8. A bridge safety guardrail according to claim 7, characterized in that: The first buckling portion is an L-shaped buckling rod, and the middle portion of the buckling rod is pivotally connected to the inner wall of the fixing seat; The second buckling portion is a buckling block, which is arranged corresponding to the buckling rod and is fixed to the outer side wall of the pile body; A movable groove is provided on the outer side of the pile body side wall corresponding to the above-mentioned buckle block, and the movable groove extends along the axial direction of the pile body; The connecting pile also includes A rotating rod, which is integrally arranged in the pile body and can rotate along its own circumference; The movable blocks are provided with two groups, and the movable blocks are driven by the rotating rod to move linearly along the axis direction of the rotating rod, and the movement directions of the two groups of movable blocks are opposite. The first connecting rod is provided on the circumference of the movable block and passes through the limiting groove and extends to the outside of the pile body; The second connecting rod is provided with two groups, each group has several second connecting rods, and the several second connecting rods are arranged corresponding to the above-mentioned first connecting rods. One end of the connecting rod is pivotally connected to the above-mentioned first connecting rod, and the two groups of the connecting rods maintain relative rotation.

9. A bridge safety guardrail according to claim 8, characterized in that: One set of the movable blocks is threadedly connected to the rotating rod; One end of the rotating rod close to the movable block threadedly connected to it is provided with a fixing plate fixedly connected to the pile body, and a pulley is installed on the end face of the fixing plate close to the movable block. One end of the flexible belt is fixedly connected to one group of movable blocks, and the other end passes around the pulley and is fixedly connected to another group of movable blocks.

10. A bridge safety guardrail according to claim 8 or 9, characterized in that: The side surfaces of the first connecting rod and the second connecting rod are both provided with limiting grooves, and the two ends of the limiting rod are movably arranged in the limiting grooves.

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