Guardrail structure of large-displacement highway bridge expansion joint

Abstract

The utility model relates to the technical field of traffic engineering and safety, and discloses a guardrail structure of a large-displacement highway bridge expansion joint, which comprises a support column, the middle part of the support column is fixedly connected with two shells, the right sides of the two shells are both slidably connected with moving rods, and the outer parts of the moving rods are slidably connected with a fixed plate I; the device comprises a first fixing plate, two first groove plates are fixedly connected to the left side of the first fixing plate, first rotating plates are rotationally connected to the left sides of the first groove plates, first rotating shafts are rotationally connected to the other sides of the first rotating plates, second rotating plates are rotationally connected to the outer portions of the first rotating shafts, and second groove plates are fixedly connected to the close sides of the two first groove plates. According to the guardrail dismounting device, the moving rod moves to drive the two third rotating plates to rotate, so that the transverse plates rotate, the two transverse plates get close to each other, the clamps get close to each other, and the fixing blocks are clamped, and therefore rapid dismounting of a guardrail is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to traffic engineering and safety technical field especially relates to the guardrail structure of large displacement highway bridge expansion joint. BACKGROUND

[0002] Highway bridge is the important structure that crosses the topographic obstacle such as river, valley, connects different places to realize the highway traffic. Highway bridge sets expansion joint because bridge will produce deformation under the action of temperature change, concrete shrinkage and creep, vehicle load and other factors, and expansion joint can adapt to this deformation, prevent bridge structure from being damaged. The guardrail structure of large displacement highway bridge expansion joint is generally composed of column, cross bar, guard plate, its role is to provide safety protection for vehicle and pedestrian at expansion joint, prevent vehicle and pedestrian from falling into expansion joint due to accident, also play certain guiding and aesthetic effect.

[0003] The guardrail structure is composed of column, cross bar and guard plate, the column plays the role of supporting and fixing the whole guardrail structure, is usually made of solid metal material, is buried in bridge structure or is firmly installed on bridge by other ways, the cross bar is connected each column, increases the integrity and stability of guardrail structure. Cross bar can be arranged horizontally, also can be arranged at different angles according to needs, the guard plate is located between column and cross bar, forms continuous protective barrier, prevents vehicle and pedestrian from falling into expansion joint. Guard plate can be made of metal, plastic or other high-strength material, has certain strength and impact resistance

[0004] In prior art, part guardrails adopt relatively complex locking or connecting mechanism, need more tools or operation steps when disassembling, lead to slow speed, make operating personnel spend too long time, influence the ability of construction site to adjust according to actual demand, thereby influence construction efficiency and construction safety, for this, the guardrail structure of large displacement highway bridge expansion joint is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortage, the utility model provides the guardrail structure of large displacement highway bridge expansion joint, aims at improving the problem that relatively complex locking or connecting mechanism is adopted in prior art, more tools or operation steps are needed when disassembling, lead to slow speed, make operating personnel spend too long time.

[0006] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0007] The guardrail structure of the large displacement highway bridge expansion joint comprises a support column, the middle part of the support column is fixedly connected with two housings, the right side of each of the two housings is slidably connected with a moving rod, the outer part of the moving rod is slidably connected with a fixed plate one, the left side of the fixed plate one is fixedly connected with two groove plates one, the left side of each of the two groove plates one is rotatably connected with a rotating plate one, the other side of the rotating plate one is rotatably connected with a rotating shaft one, the outer part of the rotating shaft one is rotatably connected with a rotating plate two, the proximal side of each of the two groove plates one is fixedly connected with a groove plate two, the proximal side of each of the two groove plates two is rotatably connected with a rotating plate four, the left side of the rotating plate four is rotatably connected with a rotating shaft three, the top of the rotating shaft three is rotatably connected with a rotating plate three, the outer part of the rotating shaft three is rotatably connected with a horizontal plate, the left side of the horizontal plate is rotatably connected with a rotating shaft four, the left side of the rotating shaft four is rotatably connected with a clamp, the rear side of the clamp is fixedly connected with a fixed block, the left side of the fixed block is fixedly connected with a buffer assembly for reducing impact;

[0008] As a further description of the above technical solution:

[0009] The buffer assembly comprises a fixed plate two, the right side of the fixed plate two is fixedly connected to the left side of the fixed block, the left side of the fixed plate two is fixedly connected with a fence, the front side of the fence is slidably connected with two moving shafts one, the outer part of each of the two moving shafts one is rotatably connected with a long plate, the other side of the long plate is rotatably connected with a rotating shaft two, the outer part of the rotating shaft two is slidably connected with a stress plate;

[0010] As a further description of the above technical solution:

[0011] The proximal side of each of the two groove plates two is provided with a rotating groove one, and the left side of each of the two groove plates one is provided with a rotating groove two;

[0012] As a further description of the above technical solution:

[0013] The right side of the housing is fixedly connected with a groove plate three, and the front side of the groove plate three is provided with a rotating groove three;

[0014] As a further description of the above technical solution:

[0015] The front side of the groove plate three is rotatably connected with a limiting plate one, and the left side of the housing is provided with a slot one;

[0016] As a further description of the above technical solution:

[0017] The right side of the moving rod is fixedly connected with a limiting plate two, the bottom of the fixed plate one is fixedly connected to the inner wall of the housing, and the bottom of the groove plate one is fixedly connected to the inner wall of the housing;

[0018] As a further description of the above technical solutions:

[0019] The front side of the fence is provided with two sliding grooves, and the inner part of the moving shaft one is fixedly connected with a fixed shaft one;

[0020] As a further description of the above technical solutions:

[0021] The inner wall of the rotating shaft two is fixedly connected with a fixed shaft two, and the rear side of the stress plate is provided with a notch two.

[0022] The utility model has the advantages of the following:

[0023] 1、 the utility model discloses, move through the moving rod, and rotate with two rotating plate threes, so that the cross plate rotates, and the two cross plates are close to each other, so that the clamp is close to each other, so as to realize the quick disassembly of the guardrail, and the installation, check, maintenance and replacement of expansion joints are convenient, and the work efficiency is improved, so that the influence time of traffic can be reduced, and the normal traffic of highway bridges is guaranteed.

[0024] 2、 the utility model discloses, when the stress plate is stressed, so that two rotating shafts two rotate, so that the two long plates rotate, so that the moving shaft moves in the notch of the fence, and the fixed shaft one and the fixed shaft two fix the moving shaft one and the rotating shaft two, so that the impact buffering of the guardrail is realized, in addition, the damage of impact to the guardrail can be effectively reduced, and the service life of the guardrail is prolonged, so that the influence of impact on the bridge structure can be reduced, and the safety of the bridge is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the three-dimensional schematic view of the guardrail structure of the large displacement highway bridge expansion joint that the utility model proposes;

[0026] Figure 2 It is the fixed plate one structure schematic view of the guardrail structure of the large displacement highway bridge expansion joint that the utility model proposes;

[0027] Figure 3 It is the fixed plate two structure schematic view of the guardrail structure of the large displacement highway bridge expansion joint that the utility model proposes;

[0028] Figure 4 It is the stress plate structure schematic view of the guardrail structure of the large displacement highway bridge expansion joint that the utility model proposes.

[0029] LEGEND:

[0030] 1, support; 2, shell; 3, moving rod; 4, fixed plate one; 5, recessed plate one; 6, rotating plate one; 7, rotating shaft one; 8, rotating plate two; 9, recessed plate two; 10, rotating plate three; 11, rotating plate four; 12, cross plate; 13, clamp; 14, fixed block; 15, fixed plate two; 16, fence; 17, moving shaft one; 18, long plate; 19, rotating shaft two; 20, stress plate; 21, fixed shaft one; 22, fixed shaft two; 23, recessed plate three; 24, limit plate one; 25, limit plate two. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] Reference Figure 2 and Figure 3The utility model provides a kind of guardrail structure of large displacement highway bridge expansion joint, including support 1, support 1 is as the main support component of entire guardrail structure, provides installation and fixed basis for other components, ensure the stability of guardrail structure, the middle part of support 1 is fixedly connected with two housings 2, housing 2 is to provide sliding track for moving rod 3, limit the moving direction of moving rod 3, on the other hand, connect with support 1, enhance the firmness of overall structure, the right side of two housings 2 is slidably connected with moving rod 3, moving rod 3 can slide in housing 2, when being impacted by external force, impact force is dispersed and transmitted by sliding, play certain buffering effect, reduce direct damage to other parts of guardrail structure, the outside of moving rod 3 is slidably connected with fixed plate one 4, fixed plate one 4 is to provide fixed point for recessed plate one 5, ensure the position stability of recessed plate one 5, also move along with the movement of moving rod 3 simultaneously, participate in the buffering and deformation process of entire guardrail structure, the left side of fixed plate one 4 is fixedly connected with two recessed plate one 5, recessed plate one 5 is as the connecting point of rotating plate one 6, so that rotating plate one 6 can rotate on its left side, and by its own structure and connection mode, when being impacted, work cooperatively with other components, realize buffering and deformation, the left side of recessed plate one 5 is rotatably connected with rotating plate one 6, rotating plate one 6 is rotatably connected with rotating shaft one 7 and recessed plate one 5, when being impacted, can rotate, transmit impact force to other components, participate in buffering process, also can adapt to the deformation of guardrail structure simultaneously, the other side of rotating plate one 6 is rotatably connected with rotating shaft one 7, rotating shaft one 7 is as the connecting shaft of rotating plate one 6 and rotating plate two 8, so that both can rotate around it, when guardrail structure is impacted, allow relative motion of each component, realize buffering and deformation, rotating shaft one 7 is rotatably connected with rotating plate two 8 outside, rotating plate two 8 is connected with rotating shaft one 7, when being impacted, move along with the movement of rotating plate one 6, jointly participate in buffering process, and by the change of its position and angle, adjust the stress state of entire guardrail structure, the similar side of two recessed plate one 5 is fixedly connected with recessed plate two 9, recessed plate two 9 is to provide connecting point for rotating plate four 11, so that rotating plate four 11 can rotate on its similar side, while working cooperatively with other components, realize buffering and deformation when being impacted, the similar side of two recessed plate two 9 is rotatably connected with rotating plate four 11, rotating plate four 11 is rotatably connected with recessed plate two 9 and rotating shaft three, when being impacted, can rotate, transmit and disperse impact force, realize buffering and deformation of guardrail structure with other components, rotating plate four 11 is rotatably connected with rotating shaft three left side, rotating shaft three top is rotatably connected with rotating plate three 10, rotating plate three 10 is rotatably connected with rotating shaft three, when being impacted, can rotate, participate in buffering process, adjust the stress distribution of guardrail structure, and cooperate with other components, improve the impact resistance of guardrail, rotating shaft three is rotatably connected with horizontal plate 12 outside,The horizontal plate 12 is a connecting component between the third rotating shaft and the fourth rotating shaft, which moves with the movement of each component when impacted, plays a role in transmitting force and adjusting the structure, and the left side of the horizontal plate 12 is rotatably connected with the fourth rotating shaft, and the left side of the fourth rotating shaft is rotatably connected with the clamp 13, which is used to fix and connect other components, such as the fixed block 14, to ensure the integrity and stability of the entire guardrail structure, and can also participate in the buffering process through its own deformation and movement when impacted, and the rear side of the clamp 13 is fixedly connected with the fixed block 14, which is an intermediate component connecting the clamp 13 and the buffer assembly, and fixes the buffer assembly on the guardrail structure, so that the buffer assembly can play a role in reducing impact, and the left side of the fixed block 14 is fixedly connected with the buffer assembly for reducing impact.

[0033] Referring to Figure 2 and Figure 4 , the buffer assembly includes a second fixed plate 15, which is a component connecting the fixed block 14 and the fence 16, provides a mounting base for the entire buffer assembly, ensures the stable position of the buffer assembly in the guardrail structure, and can effectively play a buffering role, the right side of the second fixed plate 15 is fixedly connected to the left side of the fixed block 14, the left side of the second fixed plate 15 is fixedly connected with the fence 16, which provides a sliding track for the moving shaft 17 and limits the movement range of the moving shaft 17, and also plays a certain protection and blocking role to prevent the components inside the buffer assembly from being excessively deformed or separated when impacted, the front side of the fence 16 is slidably connected with two moving shafts 17, the moving shaft 17 can slide on the front side of the fence 16, and when impacted, the position and angle of the long plate 18 are adjusted by sliding to transmit the impact force to other components and participate in the buffering process, the outer part of the two moving shafts 17 is rotatably connected with the long plate 18, the long plate 18 is rotatable and deformable when impacted by connecting with the moving shaft 17 and the rotating shaft 19 to disperse the impact force to different directions and reduce the direct impact on the guardrail structure, the other side of the long plate 18 is rotatably connected with the rotating shaft 19, the rotating shaft 19 is a connecting shaft of the long plate 18 and the stress plate 20, allowing them to relatively rotate and slide, allowing each component to move relatively when the guardrail structure is impacted, achieving buffering and deformation, and the outer part of the rotating shaft 19 is slidably connected with the stress plate 20, which directly bears the impact force and is slidable and deformable when impacted by connecting with the rotating shaft 19 to transmit the impact force to other components and work together with other parts of the buffer assembly to reduce the impact on the guardrail structure.

[0034] Referring to Figures 1 to 3The left side of the two groove plates two 9 is provided with a rotating groove one, and the rotating plate four 11 provides a rotating space, so that the rotating plate four 11 can rotate within a certain angle range when impacted, thereby participating in the buffering process and adjusting the stress state of the guardrail structure. The left side of the two groove plates one 5 is provided with a rotating groove two, and the rotating plate one 6 provides a rotating space, allowing the rotating plate one 6 to rotate when impacted, thereby transmitting the impact force to other components, achieving buffering and deformation. The right side of the shell 2 is fixedly connected with the groove plate three 23, which provides installation and rotation for the limiting plate one 24, and at the same time, together with the shell 2, enhances the stability of the structure. The front side of the groove plate three 23 is provided with a rotating groove three, which limits the rotating range of the limiting plate one 24, so that the limiting plate one 24 can rotate within a certain angle, thereby limiting the moving range of the moving rod 3. The front side of the groove plate three 23 is rotatably connected with the limiting plate one 24, which cooperates with the limiting plate two 25 to limit the moving distance of the moving rod 3 in the shell 2, preventing the moving rod 3 from excessively extending or retracting, and ensuring that the guardrail structure can stably play a buffering role when impacted. The left side of the shell 2 is provided with a slot one for installing or connecting other components, or providing a certain space for the movement of the moving rod 3, so that the moving rod 3 can smoothly slide in the shell 2 when impacted. The right side of the moving rod 3 is fixedly connected with the limiting plate two 25, which cooperates with the limiting plate one 24 to limit the movement of the moving rod 3 when moving, ensuring that the moving rod 3 moves within a specified range, preventing the moving rod 3 from disengaging from the shell 2, and ensuring the integrity of the guardrail structure. The bottom of the fixed plate one 4 is fixedly connected to the inner wall of the shell 2, fixing the fixed plate one 4 on the shell 2 and ensuring the stable position of the fixed plate one 4, providing firm support for the groove plate one 5 and other components, so that the entire guardrail structure can withstand impact force. The bottom of the groove plate one 5 is fixedly connected to the inner wall of the shell 2, fixing the position of the groove plate one 5, so that it can serve as a connection point for the rotating plate one 6 and other components, remaining stable when impacted and participating in the buffering process. The front side of the fence 16 is provided with two sliding grooves, which provide sliding tracks for the moving shaft one 17, allowing the moving shaft one 17 to slide in the sliding grooves when impacted, adjusting the position and angle of the long plate 18, and achieving the buffering effect. The inside of the moving shaft one 17 is fixedly connected with the fixed shaft one 21, which fixes the structure of the moving shaft one 17, keeping it stable during sliding and rotating, and ensuring that the long plate 18 can effectively transmit impact force. The inner wall of the rotating shaft two 19 is fixedly connected with the fixed shaft two 22, which strengthens the structural strength of the rotating shaft two 19, keeping it stable during the rotation and sliding of the long plate 18 and the stress plate 20, and ensuring the normal operation of the buffering assembly. The rear side of the stress plate 20 is provided with a slot two for connecting with other components or providing a certain space for the deformation of the stress plate 20, allowing the stress plate 20 to deform to a certain extent when impacted, thereby absorbing and dispersing impact force.

[0035] Working principle: when the guardrail needs to be quickly disassembled, the operator pushes the moving rod 3, and the moving rod 3 rotates with the rotating plate three 10, so that the horizontal plate 12 rotates, the rotation of the horizontal plate 12 makes the rotating plate four 11 rotate, the rotation of the horizontal plate 12 makes the rotating plate two 8 rotate, and the rotating plate one 6 rotates, so that the clamp 13 moves, the two clamps 13 are close to each other, and the limiting block on the two clamps 13 is clamped in the notch of the fixed block 14, so that the fence 16 is clamped, the rotating limiting plate one 24 passes through the moving rod 3, so that the limiting plate two 25 is limited, thereby realizing the quick disassembly of the guardrail, and facilitating the installation, inspection, maintenance and replacement of the expansion joint, etc. Work efficiency is improved; thereby the influence time on traffic can be reduced, and the normal traffic of the highway bridge is ensured.

[0036] When the guardrail needs to be impacted, the force plate 20 moves, the two rotating shafts two 19 on the force plate 20 move, the two long plates 18 rotate, the moving shaft one 17 on the fence 16 moves, and the moving shaft one 17 collides with the spring in the fence 16, the spring is compressed, the spring releases the rebounding force, and is limited, thereby achieving the impact buffering of the guardrail, and effectively reducing the damage of the impact on the guardrail, prolonging the service life of the guardrail; thereby the influence of the impact on the bridge structure can be reduced, and the safety of the bridge is enhanced.

[0037] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. Within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A guard structure for a large displacement highway bridge expansion joint comprising a post (1), characterised in that: The middle part of the support (1) is fixedly connected with two shells (2), the right side of each of the two shells (2) is slidably connected with a moving rod (3), the outer side of the moving rod (3) is slidably connected with a fixed plate one (4), the left side of the fixed plate one (4) is fixedly connected with two recessed plate ones (5), the left side of each of the two recessed plate ones (5) is rotatably connected with a rotating plate one (6), the other side of the rotating plate one (6) is rotatably connected with a rotating shaft one (7), the outer side of the rotating shaft one (7) is rotatably connected with a rotating plate two (8), the proximal side of each of the two recessed plate ones (5) is fixedly connected with a recessed plate two (9), the proximal side of each of the two recessed plate twos (9) is rotatably connected with a rotating plate four (11), the left side of the rotating plate four (11) is rotatably connected with a rotating shaft three, the top of the rotating shaft three is rotatably connected with a rotating plate three (10), the outer side of the rotating shaft three is rotatably connected with a horizontal plate (12), the left side of the horizontal plate (12) is rotatably connected with a rotating shaft four, the left side of the rotating shaft four is rotatably connected with a clamp (13), the rear side of the clamp (13) is fixedly connected with a fixed block (14), and the left side of the fixed block (14) is fixedly connected with a buffer assembly for reducing impact.

2. The fence structure for large displacement highway bridge expansion joints according to claim 1, characterized in that: The buffer assembly comprises a fixed plate two (15), the right side of the fixed plate two (15) is fixedly connected to the left side of the fixed block (14), the left side of the fixed plate two (15) is fixedly connected with a fence (16), the front side of the fence (16) is slidably connected with two moving shafts one (17), the outer side of each of the two moving shafts one (17) is rotatably connected with a long plate (18), the other side of the long plate (18) is rotatably connected with a rotating shaft two (19), and the outer side of the rotating shaft two (19) is slidably connected with a stress plate (20).

3. The fence structure of large displacement highway bridge expansion joint according to claim 1, characterized in that: The proximal side of each of the two recessed plate twos (9) is provided with a rotating groove one, and the left side of each of the two recessed plate ones (5) is provided with a rotating groove two.

4. The fence structure for large displacement highway bridge expansion joints according to claim 1, characterized in that: The right side of the shell (2) is fixedly connected with a recessed plate three (23), and the front side of the recessed plate three (23) is provided with a rotating groove three.

5. The fence structure for large displacement highway bridge expansion joints according to claim 4, characterized in that: The front side of the recessed plate three (23) is rotatably connected with a limiting plate one (24), and the left side of the shell (2) is provided with a slot one.

6. The fence structure for large displacement highway bridge expansion joints according to claim 1, characterized in that: The right side of the moving rod (3) is fixedly connected with a limiting plate two (25), the bottom of the fixed plate one (4) is fixedly connected to the inner wall of the shell (2), and the bottom of the recessed plate one (5) is fixedly connected to the inner wall of the shell (2).

7. The fence structure for large displacement highway bridge expansion joints according to claim 2, characterized in that: The front side of the fence (16) is provided with two sliding grooves, and the inner side of the moving shaft one (17) is fixedly connected with a fixed shaft one (21).

8. The fence structure of large displacement highway bridge expansion joint according to claim 2, characterized in that: The inner wall of the rotating shaft two (19) is fixedly connected with a fixed shaft two (22), and the rear side of the stress plate (20) is provided with a slot two.

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