Overpass steel box girder pushing mechanism

Abstract

The utility model discloses a pushing mechanism for a steel box girder of a viaduct, which comprises movable frames which are assembled oppositely up and down, an abutting piece is movably arranged at one side line of each movable frame, a buckling section is arranged on each abutting piece, the buckling sections which move oppositely clamp and fix the end part of the steel box girder, and a rubber pad which is vertically arranged is fixedly arranged in each buckling section. According to the pushing mechanism for the steel box girder of the viaduct, the long section and the short section of the rubber pad are matched with the abutting connection of the end opening of the steel box girder by rotating and adjusting the abutting piece, so that the buckling section has a clamping or supporting fixing function, and the buffering section can penetrate into the end opening of the steel box girder to abut against a steel plate with a small thickness in cooperation with the buckling section. The steel box girder pushing device is used for reducing extrusion damage to a steel plate low in thickness in the pushing process, a hydraulic cylinder can conveniently push the steel box girder through the abutting piece, the attached rubber pad can further prevent external dirt from invading the abutting position, the pushing position is safer and more stable, and the protection effect on the steel box girder is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building road and bridge construction, specifically relates to a viaduct steel box girder pushing mechanism. BACKGROUND

[0002] The viaduct steel box girder is a box-shaped beam made of steel structure, has the advantages of light weight, high strength and the like compared with the traditional cement assembled bridge, and is assembled by hoisting, horizontal pushing or rotating to the predetermined position in the actual construction process.

[0003] According to the public (announcement) number: CN217128033U, the public (announcement) day: August 5, 2022, a kind of hydraulic pushing device for steel box girder, including the hydraulic cylinder of pushing steel box girder moves and the slider of connecting both, make slider push steel box girder.

[0004] In the prior art including the above-mentioned patent, since the steel box girder is assembled by prefabricated steel plate at both ends, and the thickness of the steel plate is low in some positions, before the slider pushes the end plate of the steel box girder, the pushing force of the slider directly acts on the steel plate, and the large pushing force does not completely guarantee whether it will cause extrusion damage to the steel plate, and the steel box girder is often pushed for several days during translation, whether there are foreign pollutants entering the contact position between the slider and the steel box girder during this period, whether the paint layer on the surface of the steel plate is scratched by the extrusion of the foreign pollutants, which are all factors affecting the service life of the steel box girder after assembly, therefore the safety of the butt joint position between the slider and the steel box girder needs to be improved. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of viaduct steel box girder pushing mechanism, to solve the problems generated above.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A kind of viaduct steel box girder pushing mechanism, including steel box girder, further including the movable frame of being assembled up and down, one side line of the movable frame is movably provided with abutting member, the buckle section is provided on the abutting member, and the buckle section is clamped after being movably arranged steel box girder end portion;

[0008] Perpendicular rubber pad is fixedly installed in the buckle section;

[0009] Further including the buffer section provided on the abutting member, the buffer block with spring is assembled on the buffer section.

[0010] Preferably, it further includes a pushing piece provided with a connecting frame, and the movable frame is assembled on the pushing piece.

[0011] Preferably, a vertical rod is fixedly installed on the movable frame, and the vertical rod is inserted into a hole formed on the pushing piece.

[0012] Preferably, a rotating shaft is fixedly installed on the abutting piece and rotates on the movable frame.

[0013] Preferably, a movable slot is formed on the movable frame for the abutting piece to rotate.

[0014] Preferably, a lock block is fixedly sleeved on the rotating shaft, and a lock hole is formed on a side wall of the movable slot.

[0015] The rotating shaft is axially moved to make the lock block in the default state slide out of the lock hole.

[0016] Preferably, an elastic piece is fixedly installed at an end of the abutting piece and abuts against an inner wall of the movable slot.

[0017] Preferably, a planar section is further arranged on the abutting piece.

[0018] Preferably, an arc section is arranged at a position adjacent to the planar section.

[0019] Preferably, the elastic piece is a spring.

[0020] In the above technical solution, the high-level bridge steel box girder pushing mechanism has the following beneficial effects: by adjusting the abutting piece, the long section of the rubber pad abuts against the steel plate, and the short section is attached to the outer side wall of the steel plate, the clamping section is used to clamp the steel box girder port, by rotating the abutting piece, the long section is attached to the inner side wall of the steel plate, and the short section abuts against the steel plate, so that the clamping section enters the steel box girder port to be lifted and fixed, at this time, the buffer section is deep into the steel box girder port, and the buffer block abuts against the steel plate with low thickness in the steel box girder port, so as to reduce the extrusion damage to the steel plate with low thickness in the pushing process, the hydraulic cylinder pushes the steel box girder through the abutting piece, and the attached rubber pad can also prevent foreign matter from invading the abutting position, so that the pushing position is more safe and stable, and the protection effect of the steel box girder is better. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments or prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0022] Figure 1 The pushing piece and the steel box girder assembly schematic diagram provided by the present application embodiment;

[0023] Figure 2The utility model provides a push piece, movable frame and contact piece assembly schematic diagram provided for the embodiment of the utility model,

[0024] Figure 3 Movable frame part position and contact piece assembly side sectional view schematic diagram provided for the embodiment of the utility model,

[0025] Figure 4 Movable frame and contact piece explosion schematic diagram provided for the embodiment of the utility model.

[0026] Mark explanation:

[0027] 1, steel box girder, 2, push piece, 21, connecting frame, 3, movable frame, 31, vertical rod, 32, movable groove, 33, lock hole, 4, contact piece, 41, rotating shaft, 42, lock block, 43, elastic piece, 44, plane section, 45, camber section, 46, buckle section, 461, rubber pad, 47, buffer section, 471, buffer block. Specific implementation

[0028] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model will be further introduced in detail below in conjunction with the drawings.

[0029] As Figures 1-4 The utility model discloses a steel box girder pushing mechanism of viaduct, including steel box girder 1, still including the movable frame 3 of upper and lower opposite assembly, and the movable setting of movable frame 3 one side line has contact piece 4, and the buckle section 46 of setting on contact piece 4, and the end of steel box girder 1 is clamped solid after the buckle section 46 of opposite movement;

[0030] The rubber pad 461 of vertical arrangement is fixedly installed in buckle section 46;

[0031] Still include the buffer section 47 of setting in contact piece 4, and the buffer block 471 of assembling spring is set on buffer section 47.

[0032] Specifically, the end of steel box girder 1 forms a port, and the contact piece 4 is in contact with the steel plate at the port.

[0033] Further, the movable frame 3 is a steel metal beam, and the contact piece 4 exceeds the end surface of the movable frame 3, so that the contact piece 4 is responsible for fixing the end plate of the steel box girder 1, and the buckle section 46 has a protrusion outside the edge end surface of the port of the steel box girder 1, and the rubber pad 461 after vertical bending is in contact with the edge end surface of the port of the steel box girder 1.

[0034] Further, the rubber pad 461 is divided into short sections and long sections according to the length, and the buckle section 46 and the buffer section 47 are specially provided on the adjacent end surfaces of the contact piece 4.

[0035] By adjusting the thickness of the steel box girder 1 through the movable frame 3, and then adjusting the abutting piece 4 to make the long section of the rubber pad 461 abut on the steel plate and the short section adhere to the outer wall of the steel plate, the buckle section 46 is realized to clamp and fix the port of the steel box girder 1, and the abutting piece 4 is rotated to make the long section adhere to the inner wall of the steel plate and the short section abut on the steel plate, so that the buckle section 46 is put into the port of the steel box girder 1 to be fixed, and at this time, the buffer section 47 is deep into the port of the steel box girder 1, and the buffer block 471 abuts on the steel plate with low thickness in the port of the steel box girder 1, which is used to reduce the extrusion damage to the steel plate with low thickness in the pushing process, and the hydraulic cylinder pushes the steel box girder 1 through the abutting piece 4, and the adhered rubber pad 461 can also avoid the intrusion of external dirt into the abutting position, so that the pushing position is more safe and stable, and the protection effect of the steel box girder 1 is better.

[0036] As a further provided embodiment of the utility model, the pushing piece 2 is provided with the connecting frame 21, and the movable frame 3 is assembled on the pushing piece 2.

[0037] Specifically, the connecting frame 21 is installed in the pushing direction of the hydraulic cylinder, so that the pushing force is transmitted to the pushing piece 2 through the connecting frame 21, and the number of the pushing piece 2 is multiple, which can adapt to the width of the steel box girder 1.

[0038] Through the multiple pushing pieces 2, the clamped and pushed position of the port of the steel box girder 1 is more, and the stability is higher.

[0039] As another further provided embodiment of the utility model, the vertical rod 31 is fixedly installed on the movable frame 3, and the hole is formed in the pushing piece 2 and is inserted and matched with the vertical rod 31.

[0040] Specifically, the distance between the two vertical rods 31 on the lower movable frame 3 is less than the distance between the two vertical rods 31 on the upper movable frame 3, so that the two movable frames 3 move in the same vertical plane and synchronously apply the pushing force to the port of the steel box girder 1.

[0041] Further, the threaded holes are arranged at equal distances on the vertical rod 31.

[0042] By adjusting the threaded holes on the vertical rod 31 to assemble with the pushing piece 2, the distance between the two movable frames 3 is adjusted, so that multiple specifications of the steel box girder 1 are more easily adapted, and the application range of the pushing piece 2 is improved.

[0043] As another further provided embodiment of the utility model, the abutting piece 4 is fixedly installed with the rotating shaft 41 which rotates on the movable frame 3.

[0044] Specifically, the abutting piece 4 is fixedly sleeved on the rotating shaft 41.

[0045] The rotating shaft 41 provides the rotating condition of the abutting piece 4, and ensures that the forces on both ends of the abutting piece 4 are uniform.

[0046] As further provided by the utility model, the movable frame 3 is provided with a movable slot 32 for rotation of the abutting piece 4.

[0047] Specifically, the inner diameter of the movable slot 32 is greater than the rotating range of the protrusion on the buckle section 46, so as to avoid interference with the rotation of the abutting piece 4.

[0048] The movable slot 32 provides a functional adjustment range of the abutting piece 4, and the rotating shaft 41 is located in the movable slot 32 and can be quickly disassembled, so as to clean the inner wall of the movable slot 32.

[0049] As further provided by the utility model, the rotating shaft 41 is fixedly provided with a lock block 42, and the movable slot 32 is provided with a lock hole 33 on the side wall.

[0050] The rotating shaft 41 is axially moved to make the lock block 42 in the default state slide out of the lock hole 33.

[0051] Specifically, the lock block 42 embedded in the lock hole 33 has a hexagonal cross section, and a plurality of rubber gaskets are fixedly installed on the side wall of the lock block 42.

[0052] By axially pushing the abutting piece 4, the end of the rotating shaft 41 can be sequentially inserted into the movable slot 32, and then the rotating shaft 41 can be directly pulled out of the opening of the movable slot 32, so as to quickly disassemble the abutting piece 4, and during the process, the two lock blocks 42 are staggered in the same horizontal direction with the lock hole 33, so as to unlock the rotating shaft 41.

[0053] As further provided by the utility model, the abutting piece 4 is fixedly provided with an elastic piece 43 abutting against the inner wall of the movable slot 32.

[0054] Specifically, the two elastic pieces 43 are not deformed in the default state.

[0055] By pushing any one end of the rotating shaft 41, the moving rotating shaft 41 is unlocked, and one of the elastic pieces 43 is compressed and deformed.

[0056] As further provided by the utility model, the abutting piece 4 is further provided with a flat section 44.

[0057] The flat section 44 enables the abutting piece 4 to have a basic pushing contact function, so that the abutting piece 4 can be quickly used during short-term pushing work.

[0058] As further provided by the utility model, the flat section 44 is provided with an arc section 45 adjacent to the flat section 44.

[0059] Specifically, the flat section 44 and the arc section 45 are part of the abutting piece 4.

[0060] The arc surface section 45 is used to adapt to the arc-shaped pushing position, increase the pushing contact surface and improve the pushing stability.

[0061] As further provided by the utility model, the elastic member 43 is specifically a spring.

[0062] The spring makes the elastic member 43 deform more obviously, and the elastic member 43 outside the rotating shaft 41 can also ensure the stability under stress, and can also offset the axial offset force generated in the pushing process by using the elastic member 43, further increasing the pushing stability.

[0063] Working principle: the thickness of the steel box girder 1 is adapted by adjusting the movable frame 3, then the rubber pad 461 is adjusted to make the long section of the rubber pad 461 abut the steel plate, and the short section is attached to the outer wall of the steel plate, the buckle section 46 is used to clamp the steel box girder 1 port, the long section is attached to the inner wall of the steel plate by rotating the abutting piece 4, and the short section abuts the steel plate, so that the buckle section 46 enters the steel box girder 1 port to support and fix, and at this time the buffer section 47 is deep into the steel box girder 1 port, and the buffer block 471 abuts the steel plate with low thickness in the steel box girder 1 port, which is used to reduce the extrusion damage to the steel plate with low thickness in the pushing process, the hydraulic cylinder pushes the steel box girder 1 through the abutting piece 4, and the attached rubber pad 461 can also avoid the intrusion of external dirt into the abutting position.

[0064] The above only describes some exemplary embodiments of the utility model in a descriptive manner, without doubt, for ordinary skilled in the art, the described embodiments can be modified in various ways without deviating from the spirit and scope of the utility model. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.

Claims

1. A launching mechanism for a steel box girder of a viaduct, comprising a steel box girder (1), characterized in that, It also includes the upper and lower opposite assembling movable frame (3), one side line of the movable frame (3) is movably provided with the abutting piece (4), the abutting piece (4) is provided with the buckle section (46), the buckle section (46) is clamped after opposite movement, and the end of the steel box girder (1) is clamped; The buckle section (46) is fixedly provided with the vertically arranged rubber pad (461); It also includes the buffer section (47) provided on the abutting piece (4), and the buffer section (47) is provided with the buffer block (471) assembled with the spring.

2. The launching mechanism for steel box girder of high bridge according to claim 1, characterized in that, It also includes the pushing piece (2) provided with the connecting frame (21), and the movable frame (3) is assembled on the pushing piece (2).

3. The launching mechanism of a steel box girder of a high bridge according to claim 2, characterized in that, The movable frame (3) is fixedly provided with the vertical rod (31), and the vertical rod (31) is inserted and matched with the hole channel formed on the pushing piece (2).

4. The launching mechanism of a steel box girder of a high bridge according to claim 2, characterized in that, The abutting piece (4) is fixedly provided with the rotating shaft (41) rotating on the movable frame (3).

5. The launching mechanism of a steel box girder of a high bridge according to claim 4, characterized in that, The movable frame (3) is provided with the movable slot (32) for rotating the abutting piece (4).

6. The launching mechanism of a steel box girder of a high bridge according to claim 5, characterized in that, The rotating shaft (41) is fixedly provided with the lock block (42), and the sidewall of the movable slot (32) is provided with the lock hole (33). The rotating shaft (41) is axially moved, so that the lock block (42) in the default state is slid out of the lock hole (33).

7. The launching mechanism of a steel box girder of a high bridge according to claim 5, characterized in that, The end of the abutting piece (4) is fixedly provided with the elastic piece (43) abutting against the inner wall of the movable slot (32).

8. The launching mechanism of a steel box girder of a high bridge according to claim 5, characterized in that, The abutting piece (4) is also provided with the plane section (44).

9. The launching mechanism of a steel box girder of a high bridge according to claim 8, characterized in that, The plane section (44) is provided with the arc section (45) at the adjacent position.

10. The launching mechanism of a steel box girder of a high bridge according to claim 7, characterized in that, The elastic piece (43) is specifically a spring.

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