Anti-overturning sliding support of steel box girder bridge

Abstract

The utility model relates to the technical field of anti-overturning sliding supports, and discloses an anti-overturning sliding support of a steel box girder bridge, which comprises a mounting plate, an offset mechanism is fixedly mounted on the top end surface of the mounting plate, and an anti-overturning mechanism is fixedly mounted on the side surface of the offset mechanism; the anti-overturning mechanism comprises a first rotating block and a second mounting block, a first rotating piece is rotationally mounted on the inner wall of the first rotating block, and a push rod is fixedly mounted on the end face of the first rotating piece. The steel box bridge moves to extrude the hydraulic oil suite, hydraulic oil in the hydraulic oil suite is conveyed into the second mounting block through the oil conveying pipe, the sliding suite is pushed to move, a good sealing effect is provided through an outer sealing ring and a sealing ring during moving, and hydraulic oil leakage is prevented; and the hydraulic oil continues to push the push rod to slide on the inner wall of the first mounting block, a universal joint is formed through the first rotating piece, movement in all directions and displacement force releasing and blocking on the offset block are adapted, the anti-overturning performance of the steel box bridge can be improved, and the anti-overturning performance of the device can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to anti-overturning sliding support technical field, concretely is a kind of anti-overturning sliding support of steel box girder bridge. BACKGROUND

[0002] With the development of high-grade highway construction in our country and the need of urban overpass construction, small curve girder bridge is widely applied and developed with its economy, beauty and practicability.Compared with straight girder bridge, under the influence of curvature radius, small curve girder bridge causes the load uneven on the inside and outside relative to girder axis, so that girder not only bears the action of bending moment, but also bears the action of torsion moment, which leads to bending-torsion coupling of small curve girder and the phenomenon of mutual coupling and promotion of vertical bending and girder torsion, which complicates the internal force and deformation of girder, causes various hazards such as girder overturning, girder lateral displacement and support voiding, and is not conducive to the normal use of small curve girder bridge.

[0003] The line shape of curve girder bridge varies greatly, and the structure stress is relatively complex.When overloaded vehicle drives on curve, it will generate large centrifugal force, push the vehicle to the outside of small curve girder, increase the pressure of outside support, cause negative reaction force of inside support, and cause inside support voiding phenomenon; and under the action of torsion moment, it causes the outside overturning of small curve girder, which seriously affects the safe use of small curve girder bridge.At this time, in addition to providing vertical bearing capacity and horizontal reaction force, the support of small curve girder bridge must also ensure sufficient lateral overturning resistance and pulling capacity to avoid the overturning of the whole bridge due to the centrifugal force of overloaded vehicle.

[0004] The traditional anti-overturning sliding support of steel box girder bridge will be damaged in structure strength when it is used because the large centrifugal force is generated when overloaded vehicle drives on curve, and a device is needed to absorb and offset the excess centrifugal force.

[0005] Therefore, it is necessary to provide an anti-overturning sliding support of steel box girder bridge. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing an anti-overturning sliding support of steel box girder bridge to solve the problem of traditional anti-overturning sliding support of steel box girder bridge that will be damaged in structure strength when it is used because the large centrifugal force is generated when overloaded vehicle drives on curve.

[0007] To achieve the above object, the utility model provides following technical scheme: A kind of anti-overturning sliding support of steel box girder bridge, including mounting plate, offset mechanism is fixedly installed at the top end surface of the mounting plate, anti-overturning mechanism is fixedly installed at the side surface of the offset mechanism;The anti-overturning mechanism includes first rotating block and second mounting block, first rotating member is rotatably installed in the inner wall of the first rotating block, push rod is fixedly installed at the end surface of the first rotating member, sealing element is slidably installed at the side surface of the push rod, limit piece is slidably installed at the side surface of the push rod, inner connecting piece is fixedly installed at the side surface of the push rod, sliding sleeve is sleeved on the side surface of the push rod, recess is fixedly opened in the inner wall of the sliding sleeve, and the inner wall of recess is engagedly connected with the side surface of inner connecting piece.

[0008] Preferably, the sliding sleeve side surface is fixedly provided with a mounting groove, and an outer sealing ring is engagedly installed in the mounting groove inner wall.

[0009] Preferably, the second mounting block side surface is fixedly provided with a filling port, and an oil delivery pipe is fixedly installed at the filling port side surface.

[0010] Preferably, the second mounting block side surface is fixedly provided with a mounting groove, and a cylinder sleeve is fixedly installed in the mounting groove inner wall.

[0011] Preferably, the first mounting block inner wall is fixedly provided with a mounting groove, and the push rod side surface is slidably connected with the mounting groove inner wall.

[0012] Preferably, the offset mechanism includes a mounting block, and an offset block is slidably installed at the mounting block side surface.

[0013] Preferably, the mounting plate bottom end surface top end surface is fixedly provided with a mounting frame, and the mounting frame inner wall is fixedly connected with the second rotating member side surface.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1) The anti-overturning sliding support of the steel box girder bridge, the steel box girder displacement extrusion hydraulic oil sleeve set, further transmits the internal hydraulic oil to the second mounting block through the oil pipe, pushes the sliding sleeve set to move, and provides a good sealing effect through the outer sealing ring and the sealing ring when moving, prevents hydraulic oil leakage; the hydraulic oil continues to push the push rod to slide in the inner wall of the first mounting block, and a universal joint is formed through the first rotating piece, adapts to movement in all directions, offsets the displacement of the block and blocks, can improve the anti-overturning performance of the steel box girder bridge, and can improve the anti-overturning performance of the device.

[0016] 2) The anti-overturning sliding support of the steel box girder bridge, first, the offset mechanism is tightly connected with the bottom surface of the steel box girder through the upper fastening bolt, when the side edge of the steel box girder is stressed, the steel box girder will have a small displacement, drive the fixed frame and the offset block installed on the bottom surface of the steel box girder to move, and adapt to movement through the sliding groove formed in the inner wall of the offset block, further limit the offset block through the mounting block, so that the steel box girder releases internal stress and prevents bridge overturning. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the anti-overturning sliding support of the steel box girder bridge in the embodiment of the utility model;

[0018] Figure 2 It is a structure schematic view of the offset mechanism in the embodiment of the utility model;

[0019] Figure 3 It is a structure schematic view of the cylinder sleeve in the embodiment of the utility model;

[0020] Figure 4 It is a structure schematic view of the anti-overturning mechanism in the embodiment of the utility model;

[0021] Figure 5 It is a sectional structure schematic view of the sliding sleeve set in the embodiment of the utility model.

[0022] In the drawing: 1, mounting plate; 2, mounting frame; 3, lower fastening bolt; 4, offset mechanism; 401, mounting block; 402, offset block; 403, sliding groove; 404, fixed frame; 405, upper fastening bolt; 5, anti-overturning mechanism; 501, first rotating block; 502, first rotating piece; 503, push rod; 504, sealing element; 505, limiting element; 506, inner connecting element; 507, sliding sleeve set; 508, fixed sleeve; 509, outer sealing ring; 510, first mounting block; 511, cylinder sleeve; 512, connecting rod; 513, second mounting block; 514, second rotating block; 515, second rotating piece; 516, oil pipe; 517, mounting sleeve; 518, hydraulic oil sleeve set. DETAILED DESCRIPTION

[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0024] Embodiment one

[0025] In combination Figures 1-5 The anti-overturning sliding support of the steel box girder bridge comprises a mounting plate 1, an offset mechanism 4 fixedly installed on the top end surface of the mounting plate 1, and an anti-overturning mechanism 5 fixedly installed on the side surface of the offset mechanism 4. The anti-overturning mechanism 5 comprises a first rotating block 501 and a second mounting block 513. The first rotating block 501 is rotatably installed with a first rotating piece 502 on the inner wall. The first rotating piece 502 is fixedly installed with a push rod 503 on the end surface. The push rod 503 is slidably installed with a sealing piece 504 on the side surface. The push rod 503 is slidably installed with a limiting piece 505 on the side surface. The push rod 503 is fixedly installed with an inner connecting piece 506 on the side surface. The push rod 503 is sleeved with a sliding sleeve 507. The sliding sleeve 507 is fixedly provided with a groove on the inner wall. The groove is in meshing connection with the side surface of the inner connecting piece 506. The sliding sleeve 507 is fixedly provided with a mounting groove on the side surface. The mounting groove is in meshing installation with an outer sealing ring 509 on the inner wall. The sliding sleeve 507 is fixedly installed with a fixed sleeve 508 on the side surface. The fixed sleeve 508 is in sliding connection with the side surface of the push rod 503. The second mounting block 513 is fixedly provided with an oil filling port on the side surface. The oil filling port is fixedly installed with an oil delivery pipe 516 on the side surface. The second mounting block 513 is fixedly installed with a second rotating block 514 on the end surface. The second rotating block 514 is rotatably installed with a second rotating piece 515 on the inner wall. The second mounting block 513 is fixedly provided with a mounting groove on the side surface. The mounting groove is fixedly installed with a cylinder sleeve 511 on the inner wall. The cylinder sleeve 511 is fixedly installed with a first mounting block 510 on the other end surface. The first mounting block 510 is fixedly installed with a connecting rod 512 on the side surface. The other end surface of the connecting rod 512 is fixedly connected with the side surface of the second mounting block 513. The first mounting block 510 is fixedly provided with a mounting groove on the inner wall. The mounting groove is in sliding connection with the side surface of the push rod 503. The oil delivery pipe 516 is fixedly installed with a hydraulic oil sleeve 518 on the end surface. The mounting plate 1 is fixedly installed with a mounting sleeve 517 on the top end surface. The mounting sleeve 517 is fixedly connected with the side surface of the hydraulic oil sleeve 518 on the inner wall. The oil delivery pipe 516 penetrates through the mounting sleeve 517 and extends into the inside of the mounting sleeve 517.

[0026] Specifically, when the steel box bridge is displaced, the displacement degree of the hydraulic oil sleeve 518 is different at different angles, so the transmission amount of the hydraulic oil is also different, which can ensure dynamic balance in all directions. In the opposite direction of the movement of the offset block 402, the steel box bridge displaces and extrudes the hydraulic oil sleeve 518, and then the internal hydraulic oil is transmitted to the second mounting block 513 through the oil pipe 516, continuously pushing the sliding sleeve 507 to move, and providing a better sealing effect through the outer sealing ring 509 and the sealing element 504 when moving, preventing hydraulic oil leakage; further sliding the push rod 503, and forming a universal joint through the first rotating element 502, adapting to movement in all directions, offsetting the displacement of the offset block 402, and improving the anti-overturning performance of the steel box bridge.

[0027] In the moving direction of the offset block 402, the offset block 402 pushes the first rotating block 501 to move, further pushing the push rod 503 to slide in the inner wall of the first mounting block 510, sealing the inner wall of the cylinder sleeve 511 when sliding through the sealing element 504 to prevent hydraulic oil leakage, further pushing the fixed sleeve 508 and the sliding sleeve 507 to move, at this time the hydraulic oil in the rear part of the cylinder sleeve 511 enters the inside of the hydraulic oil sleeve 518, completing the resetting of the steel box bridge.

[0028] The hydraulic oil inside the hydraulic oil sleeve 518 and the hydraulic oil inside the cylinder sleeve 511 are in a balanced state in the horizontal direction, so that they can greatly improve the anti-overturning effect of the device on the steel box bridge.

[0029] Embodiment two

[0030] Referring to Figures 1-5 , it is further obtained that the offset mechanism 4 comprises a mounting block 401, the mounting block 401 is slidably installed on the side surface of the offset block 402, the inner wall of the offset block 402 is fixedly provided with a sliding groove 403, the inner wall of the sliding groove 403 is slidably connected with the side surface of the mounting block 401, the side surface of the offset block 402 is fixedly installed with a fixed frame 404, the fixed frame 404 is provided with a through hole penetrating through the upper and lower parts, the inner wall of the through hole is threadedly installed with an upper fastening bolt 405, the mounting plate 1 is fixedly installed with a mounting frame 2 at the top end surface of the bottom end surface, the inner wall of the mounting frame 2 is fixedly connected with the side surface of the second rotating element 515, the mounting plate 1 is provided with a silk hole penetrating through the upper and lower parts, and the inner wall of the silk hole is threadedly installed with a lower fastening bolt 3.

[0031] Specifically, first, the offset mechanism 4 is fastened and connected with the bottom surface of the steel box bridge through the upper fastening bolt 405. When the side edge of the steel box bridge is stressed, the steel box bridge will displace slightly, at this time, the fixed frame 404 and the offset block 402 installed on the bottom surface of the steel box bridge will move, and the sliding groove 403 provided in the inner wall of the offset block 402 will adapt to the movement, further limiting the movement of the offset block 402 through the mounting block 401, so that the steel box bridge releases the internal stress and prevents the bridge from overturning.

[0032] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-overturning sliding support of a steel box girder bridge comprising a mounting plate (1), characterized in that: The top end face of the mounting plate (1) is fixedly installed with an offset mechanism (4), and the side face of the offset mechanism (4) is fixedly installed with an anti-overturning mechanism (5); The anti-overturning mechanism (5) comprises a first rotating block (501) and a second mounting block (513), the inner wall of the first rotating block (501) is rotatably installed with a first rotating piece (502), the end face of the first rotating piece (502) is fixedly installed with a push rod (503), the side face of the push rod (503) is slidably installed with a sealing piece (504), the side face of the push rod (503) is slidably installed with a limiting piece (505), the side face of the push rod (503) is fixedly installed with an inner connecting piece (506), the side face of the push rod (503) is sleeved with a sliding sleeve (507), and the inner wall of the sliding sleeve (507) is fixedly provided with a groove in meshing connection with the side face of the inner connecting piece (506).

2. The anti-overturning sliding support of a steel box girder bridge according to claim 1, characterized in that: The side face of the sliding sleeve (507) is fixedly provided with a mounting groove, the inner wall of the mounting groove is in meshing connection with an outer sealing ring (509), the side face of the sliding sleeve (507) is fixedly installed with a fixed sleeve (508), and the inner wall of the fixed sleeve (508) is in sliding connection with the side face of the push rod (503).

3. The anti-overturning sliding support of a steel box girder bridge according to claim 2, characterized in that: The side face of the second mounting block (513) is fixedly provided with a filling port, the side face of the filling port is fixedly installed with an oil conveying pipe (516), the end face of the second mounting block (513) is fixedly installed with a second rotating block (514), and the inner wall of the second rotating block (514) is rotatably installed with a second rotating piece (515).

4. The anti-overturning sliding support of a steel box girder bridge according to claim 3, characterized in that: The side face of the second mounting block (513) is fixedly provided with a mounting groove, the inner wall of the mounting groove is fixedly installed with a cylinder sleeve (511), the other end face of the cylinder sleeve (511) is fixedly installed with a first mounting block (510), the side face of the first mounting block (510) is fixedly installed with a connecting rod (512), and the other end face of the connecting rod (512) is fixedly connected with the side face of the second mounting block (513).

5. The anti-overturning sliding support of a steel box girder bridge according to claim 4, characterized in that: The inner wall of the first mounting block (510) is fixedly provided with a mounting groove, the inner wall of the mounting groove is in sliding connection with the side face of the push rod (503), the end face of the oil conveying pipe (516) is fixedly installed with a hydraulic oil sleeve (518), the top end face of the mounting plate (1) is fixedly installed with a mounting sleeve (517), the inner wall of the mounting sleeve (517) is fixedly connected with the side face of the hydraulic oil sleeve (518), the oil conveying pipe (516) penetrates through the mounting sleeve (517) and extends into the mounting sleeve (517).

6. The anti-overturning sliding support of a steel box girder bridge according to claim 1, characterized in that: The offset mechanism (4) comprises a mounting block (401), the side face of the mounting block (401) is slidably installed with an offset block (402), the inner wall of the offset block (402) is fixedly provided with a sliding groove (403), the inner wall of the sliding groove (403) is in sliding connection with the side face of the mounting block (401), the side face of the offset block (402) is fixedly installed with a fixed frame (404), the fixed frame (404) is vertically and penetratively provided with a through hole, and the inner wall of the through hole is threadedly installed with an upper fastening bolt (405).

7. The anti-overturning sliding support of a steel box girder bridge according to claim 1, characterized in that: The mounting plate (1) bottom end face top end face fixedly installs the mounting frame (2), the mounting frame (2) inner wall is fixedly connected with the second rotating part (515) side, the mounting plate (1) upper and lower through silk hole is set, and the silk hole inner wall is provided with the lower fastening bolt (3) threadedly.

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